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Tang Y, Wei Z, He X, Ling D, Qin M, Yi P, Liu G, Li L, Li C, Sun J. A comparison study on polysaccharides extracted from banana flower using different methods: Physicochemical characterization, and antioxidant and antihyperglycemic activities. Int J Biol Macromol 2024; 264:130459. [PMID: 38423432 DOI: 10.1016/j.ijbiomac.2024.130459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/16/2024] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
This work investigated and compared the physicochemical characteristics, and antioxidant and antihyperglycemic properties in vitro of polysaccharides from a single banana flower variety (BFPs) extracted by different methods. BFPs extracted using hot water (HWE), acidic (CAE), alkaline (AAE), enzymatic (EAE), ultrasonic (UAE) and hot water-alkaline (HAE) methods showed different chemical composition, monosaccharide composition, molecular weight, chain conformation and surface morphology, but similar infrared spectra characteristic, main glycosidic residues, crystalline internal and thermal stability, suggesting that six methods have diverse impacts on the degradation of BFPs without changing the main structure. Then, among six BFPs, the stronger antioxidant activity in vitro was found in BFP extracted by HAE, which was attributed to its maximum uronic acid content (21.67 %) and phenolic content (0.73 %), and moderate molecular weight (158.48 kDa). The highest arabinose and guluronic acid contents (18.59 % and 1.31 % in molar ratios, respectively) and the lowest uronic acid content (14.30 %) in BFP extracted by HWE contributed to its better α-glucosidase inhibitory activity in vitro (66.55 %). The data offered theoretical evidence for choosing suitable extraction methods to acquire BFPs with targeted biological activities for applications, in which HAE and HWE could serve as beneficial methods for preparing antioxidant BFP and antihyperglycemic BFP, respectively.
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Affiliation(s)
- Yayuan Tang
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China; Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, 174 East Daxue Road, 530007 Nanning, China
| | - Zhen Wei
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China
| | - Xuemei He
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China; Guangxi Banana Preservation and Processing Research Center of Engineering Technology, 174 East Daxue Road, 530007 Nanning, China.
| | - Dongning Ling
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China; Guangxi Banana Preservation and Processing Research Center of Engineering Technology, 174 East Daxue Road, 530007 Nanning, China
| | - Miao Qin
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China
| | - Ping Yi
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China; Guangxi Banana Preservation and Processing Research Center of Engineering Technology, 174 East Daxue Road, 530007 Nanning, China
| | - Guoming Liu
- Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China
| | - Li Li
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China; Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, 174 East Daxue Road, 530007 Nanning, China
| | - Changbao Li
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China; Guangxi Banana Preservation and Processing Research Center of Engineering Technology, 174 East Daxue Road, 530007 Nanning, China
| | - Jian Sun
- Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, 174 East Daxue Road, 530007 Nanning, China; Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, 530007 Nanning, China.
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Lobo CC, Colman Lerner JE, Bertola NC, Zaritzky NE. Synthesis and characterization of functional calcium-phosphate-chitosan adsorbents for fluoride removal from water. Int J Biol Macromol 2024; 264:130553. [PMID: 38431005 DOI: 10.1016/j.ijbiomac.2024.130553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 02/03/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Functional calcium-phosphate-chitosan adsorbents for fluoride (F-) removal from water with different proportions of calcium (0.7 or 1.4 % w/v) were synthesized by: i) ionotropic gelation technique followed by drying in a convection oven (IGA) or freeze drying (FDA); ii) freeze-gelation followed by drying in a convection oven (FGA). Adsorbents were analyzed by SEM-EDX and FTIR- ATR. F- removal percentages higher than 45 % were obtained with calcium-phosphate-chitosan adsorbents for an initial F- concentration of 9.6 mg L-1. Optimal conditions for F- removal were attained, using calcium-phosphate- chitosan adsorbents synthesized by ionotropic gelation with 0.7 % of Ca (IGA0.7). Under these conditions, initial F- concentration of 5 mg L-1, was reduced below the maximum limit of 1.5 mg L-1 established by WHO. Regeneration of IGA0.7 was achieved in acid media. The performance of IGA0.7 was slightly reduced in the presence of coexisting anions (nitrate, carbonate, arsenate). Adsorption kinetics was represented satisfactorily by the pseudo-second order equation; Langmuir isotherm provided the best fit to the equilibrium data and IGA0.7 exhibited a maximum F- adsorption capacity qL = 132.25 mg g-1. IGA0.7 particles were characterized by thermogravimetry coupled to FTIR, XRD, XPS and SEM-EDX. The calcium-phosphate-chitosan adsorbents constitute a suitable and emerging material for water defluorination.
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Affiliation(s)
- C C Lobo
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), CONICET, Facultad de Ciencias, Exactas, UNLP, CIC, Calle 47 y 116, B1900AJJ La Plata, Argentina.
| | - J E Colman Lerner
- Centro de Investigación y Desarrollo en Ciencias Aplicadas (CINDECA-CONICET-CIC-UNLP), Calle 47 N° 257, B1900AJJ La Plata, Argentina
| | - N C Bertola
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), CONICET, Facultad de Ciencias, Exactas, UNLP, CIC, Calle 47 y 116, B1900AJJ La Plata, Argentina
| | - N E Zaritzky
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), CONICET, Facultad de Ciencias, Exactas, UNLP, CIC, Calle 47 y 116, B1900AJJ La Plata, Argentina; Facultad de Ingeniería, UNLP, Calle 47 y 1, B1900AJJ La Plata, Argentina
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Mandragutti T, Jarso TS, Godi S, Begum SS, K B. Physicochemical characterization of polyhydroxybutyrate (PHB) produced by the rare halophile Brachybacterium paraconglomeratum MTCC 13074. Microb Cell Fact 2024; 23:59. [PMID: 38388436 PMCID: PMC10882773 DOI: 10.1186/s12934-024-02324-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 02/03/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Polyhydroxybutyrate is a biopolymer produced by bacteria and archaea under nitrogen-limiting conditions. PHB is an essential polymer in the bioplastic sector because of its biodegradability, eco-friendliness, and adaptability. The characterization of PHB is a multifaceted process for studying the structure and its properties. This entire aspect can assure the long-term viability and performance attributes of the PHB. The characteristics of PHB extracted from the halophile Brachybacterium paraconglomeratum were investigated with the objective of making films for application in healthcare. RESULTS This was the first characterization study on PHB produced by a rare halophile, Brachybacterium paraconglomeratum (MTCC 13074). In this study, the strain produced 2.72 g/l of PHB for.5.1 g/l of biomass under optimal conditions. Methods are described for the determination of the physicochemical properties of PHB. The prominent functional groups CH3 and C = O were observed by FT-IR and the actual chemical structure of the PHB was deduced by NMR. GCMS detects the confirmation of four methyl ester derivatives of the extracted PHB in the sample. Mass spectrometry revealed the molecular weight of methyl 3-hydroxybutyric acid (3HB) present in the extract. The air-dried PHB films were exposed to TGA, DSC and a universal testing machine to determine the thermal profile and mechanical stability. Additionally, the essential property of biopolymers like viscosity was also assessed for the extracted PHB. CONCLUSIONS The current study demonstrated the consistency and quality of B. paraconglomeratum PHB. Therefore, Brachybacterium sps are also a considerable source of PHB with desired characteristics for industrial production.
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Affiliation(s)
- Teja Mandragutti
- Department of Biotechnology, Andhra University, Visakhapatnam, 530 003, India.
| | - Tura Safawo Jarso
- Department of Biology (Applied Genetics and Biotechnology Stream), College of Natural Sciences, Salale University, Fiche, Ethiopia
| | - Sudhakar Godi
- Department of Biotechnology, Andhra University, Visakhapatnam, 530 003, India
| | - S Sharmila Begum
- Department of Biotechnology, Dr Lankapalli Bullayya College, Visakhapatnam, 530013, India
| | - Beulah K
- Department of Biotechnology, Dr Lankapalli Bullayya College, Visakhapatnam, 530013, India
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Crist RM, Clogston JD, Stern ST, Dobrovolskaia MA. Advancements in Nanoparticle Characterization. Methods Mol Biol 2024; 2789:3-17. [PMID: 38506986 DOI: 10.1007/978-1-0716-3786-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Nanotechnology for drug delivery has made significant advancements over the last two decades. Innovations have been made in cancer research and development, including chemotherapies, imaging agents, and vaccine strategies, as well as other therapeutic areas, e.g., the recent commercialization of mRNA lipid nanoparticles as vaccines against the SARS-CoV-2 virus. The field has also seen technological advancements to aid in addressing the complex questions posed by these novel therapies. In this latest edition of protocols and methods for nanoparticle characterization, we highlight both old and new methodologies for defining physicochemical properties, present both in vitro and in vivo methods to test for a variety of immunotoxicities, and describe assays used for pharmacological studies to assess drug release and tissue distribution.
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Affiliation(s)
- Rachael M Crist
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
| | - Jeffrey D Clogston
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
| | - Stephan T Stern
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
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Fu M, Sun X, Fei C, Li D, Zhang D, Tuo X, Gao S, Han X, Xiu J, Wang J, Li Y. Optimization and characterization of pectin extracted from hawthorn by deep eutectic solvent. Int J Biol Macromol 2024; 256:128688. [PMID: 38092122 DOI: 10.1016/j.ijbiomac.2023.128688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023]
Abstract
In this study, hawthorn pectin was extracted from dried hawthorn with deep eutectic solvent(DES) and compared with the traditional extraction methods such as acid extraction (AE) and ultrasonic-assisted extraction (UAE). Under optimal conditions, with a molar ratio of choline chloride to urea at 1:3, a water content of 30 %, a liquid-to-solid ratio of 30:1 (mL/g), an extraction temperature of 80 °C, an extraction time of 60 min, and a pH of 1, the yield of hawthorn pectin was 4.33 % ± 0.02 %. The measured results were consistent with the prediction. In addition, compared with AE and UAE, the experimental results showed that DES had a higher yield, a lower degree of esterification, and a slightly different monosaccharide composition from other extraction methods. The results of infrared spectroscopy and scanning electron microscopy showed that DES had a fine microstructure and coarser surface, and the main chemical structure of DES didn't change. The rheological analysis showed that DES had lower apparent viscosity than AE and UAE. These results represent a green source for pectin extraction with high pectin yield and good performance. In conclusion, the deep eutectic solvent has good application prospects in extracting hawthorn pectin.
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Affiliation(s)
- Meiling Fu
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Xiaojing Sun
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Congxuan Fei
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Dandan Li
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China.
| | - Di Zhang
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Xiaoqi Tuo
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Shan Gao
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Xue Han
- Agricultural Product Storage and Processing Laboratory, College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050000, China
| | - Jianhua Xiu
- Hebei Yida Food Group Co., Ltd, Chengde Hebei 067300, China
| | - Jinhua Wang
- Hebei Yida Food Group Co., Ltd, Chengde Hebei 067300, China
| | - Ying Li
- Hebei Yida Food Group Co., Ltd, Chengde Hebei 067300, China
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Wan P, Liu H, Ding M, Zhang K, Shang Z, Wang Y, Ma Y. Physicochemical characterization, digestion profile and gut microbiota regulation activity of intracellular polysaccharides from Chlorella zofingiensis. Int J Biol Macromol 2023; 253:126881. [PMID: 37709223 DOI: 10.1016/j.ijbiomac.2023.126881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
A number of studies have shown that the polysaccharides from microalgae exhibit diverse biological activities, however, little is known about their digestibility and impact on human gut microbiota. In this study, a simulating digestion and fermentation system were established to investigate the digestibility and fermentation of intracellular polysaccharides from Chlorella zofingiensis (CZIP-S3). The results indicated that CZIP-S3 is a macromolecular polysaccharide composed of mannose, glucose, galactose and rhamnose, consisting of a main chain and two branched repeating units. CZIP-S3 could not be digested in the upper gastrointestinal tract. However, CZIP-S3 could be metabolized into smaller molecules by the gut microbiota. The pH values continuously decrease during fermentation, whereas, the amount of short-chain fatty acids steadily increase. Furthermore, CZIP-S3 could modulate the composition of gut microbiota, via lowering the ratio of Firmicutes/Bacteroidetes and increasing the relative abundance of Bacteroides, Bifidobacterium and Akkermansia. The data suggested that CZIP-S3 could potentially be used as an ingredient for functional foods or prebiotics to improve human health by promoting the relative abundances of beneficial bacteria.
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Affiliation(s)
- Peng Wan
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang 473000, China; Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang Institute of Technology, Nanyang 473000, China.
| | - Han Liu
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071000, China
| | - Mengyan Ding
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang 473000, China; Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang Institute of Technology, Nanyang 473000, China
| | - Kailu Zhang
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang 473000, China; Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang Institute of Technology, Nanyang 473000, China
| | - Zhen Shang
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang 473000, China; Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang Institute of Technology, Nanyang 473000, China
| | - Yuanli Wang
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang 473000, China; Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang Institute of Technology, Nanyang 473000, China
| | - Yanli Ma
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang 473000, China; Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang Institute of Technology, Nanyang 473000, China
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Vanin AP, Visentin EZ, Fontana RC, di Medeiros Leal MCB, de Avila E Silva S, Stokke BT, Carbonero ER, Camassola M. β-(1 → 3)(1 → 6)glucan from Schizophyllum commune 227E.32: High yield production via glucose/xylose co-metabolization. Carbohydr Polym 2023; 320:121176. [PMID: 37659785 DOI: 10.1016/j.carbpol.2023.121176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/15/2023] [Accepted: 07/04/2023] [Indexed: 09/04/2023]
Abstract
A co-metabolization of xylose and glucose by Schizophyllum commune 227E.32 wild mushroom for exopolysaccharide (EPS) production is presented. Cultivations performed with S. commune 227E.32 at different xylose concentrations demonstrated that the concentration of 50 g·L-1 of xylose achieved the highest EPS production, around 4.46 g·L-1. Scale-up in a stirred tank reactor (STR) was performed. 10 % inoculum showed the highest cost/benefit ratio regarding sugar conversion and EPS production (Y P/S = 0.90 g·g-1), achieving 1.82 g·L-1 of EPS. Isolation, purification, and characterization were conducted with EPS produced in flasks and STR. GC-MS analysis showed glucose as main monosaccharide constituents for both isolates. 13C NMR and HSQC-edited showed that both EPS isolated consisted of a β-D-Glcp (1 → 3) main chain, partially substituted at O-6 with nonreducing β-D-Glcp ends on every third residue, similar to β-D-glucan isolated from S. commune basidiomes known as schizophyllan (SPG). The Mw was determined by GPC to 1.5 × 106 Da (flasks) and 1.1 × 106 Da (STR). AFM topographs revealed a semi-flexible appearance of the β-D-glucan, consistent with the triple helical structures adopted by SPG and overall contour length consistent with a high molar mass.
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Affiliation(s)
- Ana Paula Vanin
- Enzymes and Biomass Laboratory, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS, Brazil.
| | - Esther Ziliotto Visentin
- Enzymes and Biomass Laboratory, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS, Brazil
| | - Roselei Claudete Fontana
- Enzymes and Biomass Laboratory, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS, Brazil
| | | | - Scheila de Avila E Silva
- Computational Biology and Bioinformatics Laboratory, Bioinformatics Research Center, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS, Brazil
| | - Bjørn Torger Stokke
- Biophysics and Medical Technology, Department of Physics, NTNU Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Marli Camassola
- Enzymes and Biomass Laboratory, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS, Brazil
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Bhambore N, Kumar MS. Assessing seasonal fluctuations in leachate chemical properties and leachate pollution index as contamination indicators. Environ Monit Assess 2023; 195:1432. [PMID: 37940811 DOI: 10.1007/s10661-023-12008-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
Municipal solid waste (MSW) management practices that lack scientific rigor and use impromptu methods have produced massive leachate in urban complexes. Nowadays, the management of leachate has become an utmost concern worldwide. The MSW landfill site was a low-lying, open dump that operated in a non-engineered way. In this context, the physicochemical characterization of leachate has been carried out. Leachate sampling was done at the Bhandewadi dumpsite, Nagpur, for three seasons (summer, rainy, and winter). During analysis, parameters such as COD, BOD5, pH, TKN, TSS, sulfates, and chlorides were analyzed, and the obtained data was compared with the standard EPA 2003 and CPHEEO 2016 methods. Values of COD, BOD5, TKN, sulfates, and chlorides were in the range of 2500-16,000 mg/L, 495-2500 mg/L, 167-1900 mg/L, 240-900 mg/L, and 1400-5900 mg/L with respect to all three seasons, respectively. In conjunction with physicochemical analysis, the landfill leachate's leachate pollutant index (LPI) was assessed. The highest LPI values were observed for summer (14.323) as compared to rainy (12.301) and winter (11.348) data. This index reflects the hazardous character of MSW leachate and the total potential for leachate contamination. The results of this study showed seasonal variations in the observed data. Age and seasonal fluctuations therefore substantially influence the composition of the leachate.
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Affiliation(s)
- Nandini Bhambore
- CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - M Suresh Kumar
- CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Logesh B, Karthik V, Bhaskar BV, Ebenezer E, Kumar MA. Implications of equivalent black carbon heterogeneity in south Indian high-altitude eco-sensitive region. Environ Monit Assess 2023; 195:1374. [PMID: 37880449 DOI: 10.1007/s10661-023-11957-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/05/2023] [Indexed: 10/27/2023]
Abstract
Large-scale representative source apportionment studies are uncommon, undermining source contribution studies in India, particularly in high-altitude locations. Kodaikanal is a high-altitude region in India's Western Ghats, with spatial heterogeneity of sources altering chemical complexity; thus, the associated implications are unknown. We conducted the campaign study REBER (Research on Equivalent Black Carbon Monitoring in an Eco-sensitive Region) at three Kodaikanal sites to understand local point sources, characteristics, and distribution of eBC during the winter-to-summer monsoon transition. For two main reasons: to understand the seasonal change of BC since the transition period has the lowest wind speeds and the highest particulate concentrations and is prone to high pollution events most often during seasonal transition months, and to study local pollution since the meridional monsoon and zonal winds in study region weaken whereby the transport of pollutants from ocean to land and vice versa is minimal. The results showed that the eBC mass concentration was 85% higher than in the previous study conducted by Bhaskar et al. (2018) during the monsoon transition period. To determine the ratio of fossil fuel and wood-burning sources, a real-time apportionment model of atmospheric eBC is used. The percentage of wood burning in the background location ranges from 21.12 to 88.98%. Wood burning leads in residential sites with 57.5 ± 7.3%, whereas fossil fuel contribution dominates traffic sites with 69.84 ± 10.2%. Fossil fuel contributions are significant in different characteristics of environments, ranging from 42.5 to 69.84%. The results of the conditional bivariate probability function (CBPF) analysis pointed out a competition between anthropogenic and natural sources to contribute as local sources to the monitoring stations. A scanning electron microscope (SEM) paired with an energy dispersive X-ray (EDX) analysis found that the particle size was 93% relatively large compared to other hill stations in India. The variation in the chemical constituents indicates that the particles originated from various sources.
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Affiliation(s)
- B Logesh
- Department of Bioenergy, School of Energy, Environment and Natural Resources, Madurai Kamaraj University, Madurai, 625021, India
| | - V Karthik
- Department of Bioenergy, School of Energy, Environment and Natural Resources, Madurai Kamaraj University, Madurai, 625021, India
| | - B Vijay Bhaskar
- Department of Bioenergy, School of Energy, Environment and Natural Resources, Madurai Kamaraj University, Madurai, 625021, India.
| | - E Ebenezer
- Kodaikanal Solar Observatory, Indian Institute of Astrophysics, Kodaikanal, Dindigul, India
| | - M Arun Kumar
- Advanced Environmental Laboratory, Tamil Nadu Pollution Control Board, Coimbatore, 641114, India
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Krupnik L, Joshi P, Kappler A, Flühmann B, Alston AB, Digigow R, Wick P, Neels A. Critical nanomaterial attributes of iron-carbohydrate nanoparticles: Leveraging orthogonal methods to resolve the 3-dimensional structure. Eur J Pharm Sci 2023; 188:106521. [PMID: 37423578 DOI: 10.1016/j.ejps.2023.106521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Intravenous iron-carbohydrate nanomedicines are widely used to treat iron deficiency and iron deficiency anemia across a wide breadth of patient populations. These colloidal solutions of nanoparticles are complex drugs which inherently makes physicochemical characterization more challenging than small molecule drugs. There have been advancements in physicochemical characterization techniques such as dynamic light scattering and zeta potential measurement, that have provided a better understanding of the physical structure of these drug products in vitro. However, establishment and validation of complementary and orthogonal approaches are necessary to better understand the 3-dimensional physical structure of the iron-carbohydrate complexes, particularly with regard to their physical state in the context of the nanoparticle interaction with biological components such as whole blood (i.e. the nano-bio interface).
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Affiliation(s)
- Leonard Krupnik
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
| | - Prachi Joshi
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany
| | - Andreas Kappler
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany; Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Tuebingen 72076, Germany
| | - Beat Flühmann
- CSL Vifor, Flughofstrasse 61, Glattbrug 8152, Switzerland
| | | | | | - Peter Wick
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Antonia Neels
- Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
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11
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Sayanam RRA, Nachiappan K, Khan JM, Ahmad A, Vijayakumar N. Antibacterial, antifungal, and antioxidant competence of Cardiospermum halicacabum based nanoemulsion and characterized their physicochemical properties. 3 Biotech 2023; 13:284. [PMID: 37520341 PMCID: PMC10374496 DOI: 10.1007/s13205-023-03703-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/10/2023] [Indexed: 08/01/2023] Open
Abstract
This research was designed to evaluate the pharmaceutical potentials of various proportions of nanoemulsions, Cardiospermum halicacabum Nanoemulsion A and Cardiospermum halicacabum Nanoemulsion B (CHE-NE-A & CHE-NE-B) prepared from the hydroalcoholic extract of Cardiospermum halicacabum through in vitro approach, and their physicochemical properties were characterized using standard scientific analytical techniques. The physicochemical and morphological properties of CHE-NE-A and CHE-NE-B were characterized by FTIR, SEM, TEM, zeta potential, and scattering light intensity analyses. The results revealed that the size, shape, and exterior conditions of nano-droplets of the CHE-NE-A nanoemulsion were suitable as a drug carrier. The reports obtained from in vitro drug releasing potential analysis support this as well. CHE-NE-A nanoemulsion constantly removes the drug from the dialysis bag than CHE-NE-B. Moreover, the CHE-NE-A showed considerable dose-dependent antioxidant activity on DPPH, ABTS, and FRAP free radicals. CHE-NE-A and CHE-NE-B were tested for their antibacterial activity with various bacterial strains. The results demonstrated that the CHE-NE-A nanoemulsion showed remarkable antibacterial activity (zone of inhibition) against test bacterial pathogens than CHE-NE-B. The antibacterial activity of CHE-NE-A at a concentration of 200 µg mL-1was in the following order, P. aeruginosa > S. aureus > S. typhimurium > S. pneumoniae > E. coli. Furthermore, CHE-NE-A has the lowest MIC values against these test bacterial pathogens than CHE-NE-B. Moreover, the CHE-NE-A also demonstrated good antifungal activity against the test fungal pathogens such as Cryptococcus neoformans, Aspergillus niger, Candida pneumonia, and Penicillium expansum than CHE-NE-B. These results strongly suggest that the CHE-NE-A nanoemulsion possesses considerable pharmaceutical potential. Interestingly, the physicochemical properties also rope that the CHE-NE-A nanoemulsion may be considered a drug carrier and useful for drug formulation.
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Affiliation(s)
- Rajeswari Ranga Anantha Sayanam
- Department of Biochemistry, School of Allied Health Sciences, VMKVMCH Campus, Vinayaka Mission’s Research Foundation (DU), Salem, Tamil Nadu 636308 India
| | | | - Javed Masood Khan
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Anis Ahmad
- Department of Radiation Oncology, Miller School of Medicine/Sylvester Cancer Center, University of Miami, Miami, FL USA
| | - Natesan Vijayakumar
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu 608002 India
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12
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Ren Y, Yu D, Wu J, Mao S, Chen P, Chen S, Gao Q, Ye X, Tian J. Preparation and physicochemical properties characterization of hesperetin-grafted pectin conjugate. Int J Biol Macromol 2023:124887. [PMID: 37196711 DOI: 10.1016/j.ijbiomac.2023.124887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/19/2023] [Accepted: 05/12/2023] [Indexed: 05/19/2023]
Abstract
Different ratios of hesperetin (HT) were successfully grafted onto pectin from basic water (PB) molecules via free radical-induced reaction. The structure of PB-HT conjugates was characterized by ultraviolet spectroscopy, infrared spectroscopy, X-ray diffraction and scanning electron microscopy. Results indicated that HT was successfully grafted onto pectin molecules, and PB-HT-0.5 showed the highest HT content (103.18 ± 2.76 mg/g). Thermogravimetric analysis indicated that HT crystals showed good thermal resistance and could improve the thermal stability of PB-HT conjugates. Additionally, PB-HT conjugates showed good cytocompatibility and blood compatibility. This study provides a novel and efficient method to synthesize hesperetin-grafted pectin conjugate, which showed potential application in the fields of functional foods in the future.
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Affiliation(s)
- Yanming Ren
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China
| | - Dandan Yu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China
| | - Jiaxiong Wu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China
| | - Shuifang Mao
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China
| | - Pin Chen
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China
| | - Shiguo Chen
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Zhejiang University Zhongyuan Institute, Zhengzhou 450000, China; Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi 276000, China
| | - Qiang Gao
- Shandong Huihuang Food Co., Ltd., Linyi 276000, Shandong, China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Zhejiang University Zhongyuan Institute, Zhengzhou 450000, China; Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi 276000, China.
| | - Jinhu Tian
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China.
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13
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Helmick H, Tonner T, Hauersperger D, Ettestad S, Hartanto C, Okos M, Liceaga A, Bhunia AK, Kokini JL. Physicochemical characterization of changes in pea protein as the result of cold extrusion. Food Chem 2023; 423:136240. [PMID: 37163915 DOI: 10.1016/j.foodchem.2023.136240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/12/2023]
Abstract
Pea protein is a popular plant-based protein for mimicking textures in meat and dairy analogues which are more sustainable than their animal-based counterparts. However, precise mechanisms for generating specific textures through different processing methods are still being evaluated. This work utilizes a novel low-temperature extrusion process to selectively alter the chemical structure of pea protein. Changes in secondary structure, surface hydrophobicity, electrostatic interactions, and disulfide bonding are characterized through FTIR, ANS- probes, zeta potential, and SDS-PAGE. Extrudates are further characterized using texture parameter analysis. It was found that a linear combination of physicochemical data, generated with multiple linear regression modelling, led to reasonable estimates of the specific mechanical energy and textural properties. This work offers a new method of reactive extrusion to selectively modify interactions in pea protein using low temperature extrusion, and applications may include fatty textures, since the extrudates are found to be largely stabilized through hydrophobic interactions evaluated with surface hydrophobicity measurements.
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Affiliation(s)
- Harrison Helmick
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Troy Tonner
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Daniel Hauersperger
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Sarah Ettestad
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Christabel Hartanto
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Martin Okos
- Department of Agricultural and Biological Engineering, Purdue University, 225 South University Street, West Lafayette, IN 47907, United States
| | - Andrea Liceaga
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Arun K Bhunia
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States
| | - Jozef L Kokini
- Department of Food Science, Purdue University, 745 Agriculture Mall Dr., West Lafayette, IN 47907, United States.
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14
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Wang H, Lyu L, Gao Y, Shi J, Wang B, Zheng L, Wang Y. A case study on occupational exposure assessment and characterization of particles in a printing shop in China. Environ Geochem Health 2023:10.1007/s10653-023-01592-x. [PMID: 37133770 DOI: 10.1007/s10653-023-01592-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 04/18/2023] [Indexed: 05/04/2023]
Abstract
Printers can release numerous particles to contaminate indoor environments and pose health risks. Clarifying the exposure level and physicochemical properties of printer-emitted particles (PEPs) will help to evaluate the health risks of printer operator. In our study, the particles concentration in the printing shop was monitored in real time for a long time (12 h/day, total 6 days), and the PEPs were collected to characterize their physicochemical properties including shape, size and compositions. The result showed that the concentration of PEPs is closely related to the printing workload and the highest particle mass concentration of PM10 and PM2.5 was 212.73 μg m-3 and 91.48 μg m-3, respectively. The concentration of PM1 in the printing shop was in the range of 11.88-80.59 μg m-3 for mass value, and 174.83-1348.84 P cm-3 for count value which changed with the printing volume. The particle sizes of PEPs were less than 900 nm, 47.99% of PEPs was less than 200 nm, and 14.21% of the particles were at the nanoscale. PEPs contained 68.92% organic carbon (OC), 5.31% elemental carbon (EC), 3.17% metal elements, and 22.60% other inorganic additives, which contained more OC and metal elements than toners. Total polycyclic aromatic hydrocarbons (PAHs) levels were 18.95 ng/mg in toner and 120.70 ng/mg in PEPs. The carcinogenic risk of PAHs in PEPs was 1.40 × 10-7. These findings suggested future studies should pay more attention to the health effects of printing workers exposed to nanoparticles.
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Affiliation(s)
- Hongbo Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Lizhi Lyu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Yanjun Gao
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Jiazhang Shi
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Bin Wang
- Institute of Reproductive and Child Health, Peking University, Beijing, 100191, People's Republic of China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Lingna Zheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, People's Republic of China
| | - Yun Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China.
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15
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Mast J, Van Miert E, Siciliani L, Cheyns K, Blaude MN, Wouters C, Waegeneers N, Bernsen R, Vleminckx C, Van Loco J, Verleysen E. Application of silver-based biocides in face masks intended for general use requires regulatory control. Sci Total Environ 2023; 870:161889. [PMID: 36731552 PMCID: PMC9886386 DOI: 10.1016/j.scitotenv.2023.161889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 04/14/2023]
Abstract
Silver-based biocides are applied in face masks because of their antimicrobial properties. The added value of biocidal silver treatment of face masks to control SARS-CoV-2 infection needs to be balanced against possible toxicity due to inhalation exposure. Direct measurement of silver (particle) release to estimate exposure is problematic. Therefore, this study optimized methodologies to characterize silver-based biocides directly in the face masks, by measuring their total silver content using ICP-MS and ICP-OES based methods, and by visualizing the type(s) and localization of silver-based biocides using electron microscopy based methods. Thirteen of 20 selected masks intended for general use contained detectable amounts of silver ranging from 3 μg to 235 mg. Four of these masks contained silver nanoparticles, of which one mask was silver coated. Comparison of the silver content with limit values derived from existing inhalation exposure limits for both silver ions and silver nanoparticles allowed to differentiate safe face masks from face masks that require a more extensive safety assessment. These findings urge for in depth characterization of the applications of silver-based biocides and for the implementation of regulatory standards, quality control and product development based on the safe-by-design principle for nanotechnology applications in face masks in general.
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Affiliation(s)
- Jan Mast
- Trace Elements and Nanomaterials, Chemical and Physical Health Risks, Sciensano, Uccle, Belgium.
| | - Erik Van Miert
- Risk and Health Impact Assessment, Chemical and Physical Health Risks, Sciensano, Brussels, Belgium.
| | - Lisa Siciliani
- Trace Elements and Nanomaterials, Chemical and Physical Health Risks, Sciensano, Uccle, Belgium.
| | - Karlien Cheyns
- Trace Elements and Nanomaterials, Chemical and Physical Health Risks, Sciensano, Uccle, Belgium.
| | - Marie-Noëlle Blaude
- Risk and Health Impact Assessment, Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | - Charlotte Wouters
- Trace Elements and Nanomaterials, Chemical and Physical Health Risks, Sciensano, Uccle, Belgium.
| | - Nadia Waegeneers
- Risk and Health Impact Assessment, Chemical and Physical Health Risks, Sciensano, Brussels, Belgium.
| | - Ruud Bernsen
- Thermo Fisher Scientific, Eindhoven, the Netherlands.
| | - Christiane Vleminckx
- Risk and Health Impact Assessment, Chemical and Physical Health Risks, Sciensano, Brussels, Belgium.
| | - Joris Van Loco
- Trace Elements and Nanomaterials, Chemical and Physical Health Risks, Sciensano, Uccle, Belgium; Risk and Health Impact Assessment, Chemical and Physical Health Risks, Sciensano, Brussels, Belgium.
| | - Eveline Verleysen
- Trace Elements and Nanomaterials, Chemical and Physical Health Risks, Sciensano, Uccle, Belgium.
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16
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Leonhard V, Comini LR, Alasino RV, Cometto MJ, Bierbrauer KL, Beltramo DM. Self-Assembled Teicoplanin Micelles as Amphotericin B Nanocarrier. J Pharm Sci 2023; 112:1081-1088. [PMID: 36528112 DOI: 10.1016/j.xphs.2022.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Teicoplanin (Teico) is an antimicrobial agent that spontaneously forms micelles in aqueous media. In this work, we characterized the physicochemical properties of nanoparticles formed by the interaction of Teico with Amphotericin B (AmB). Teico-AmB micelles structure spontaneously in aqueous media, with a particle size of 70-100 nm and a zeta potential of -28 mV. Although the characterization of these nanostructures yielded satisfactory results, in vitro cytotoxicity tests showed high toxicity. Based on this, adding cholesterol to the formulation was evaluated to try to reduce the toxicity of the drug. These Teico-AmB-Chol nanostructures have a larger size, close to 160 nm, but a lower polydispersity index. They also showed strongly negative surface charge and were more stable than Teico-AmB, remaining stable for at least 20 days at 4 °C and 25 °C and against centrifugation, dilution, freezing, lyophilization and re-suspension processes with a recovery percentage of AmB greater than 95%, maintaining their initial size and zeta potential. These Teico-AmB-Chol micelles show lower cytotoxic effect and higher biological activity than Teico-AmB, even than Amfostat® and Ambisome® formulations. These two new nanoparticles, with and without Chol, are discussed as potential formulations able to improve the antifungal therapeutic efficiency of AmB.
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Affiliation(s)
- V Leonhard
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - L R Comini
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - R V Alasino
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - M Jávega Cometto
- Facultad de Ciencias Químicas - Universidad Nacional de Córdoba, Argentina
| | - K L Bierbrauer
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - D M Beltramo
- Centro de Excelencia en Productos y Procesos de Córdoba (CEPROCOR), Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Biotecnología - Facultad de Ciencias Químicas - Universidad Católica de Córdoba, Argentina.
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17
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Shakiba A, Aliasghar A, Moazeni K, Pazoki M. Hydrothermal Carbonization of Sewage Sludge with Sawdust and Corn Stalk: Optimization of Process Parameters and Characterization of Hydrochar. Bioenergy Res 2023; 16:1-12. [PMID: 36619298 PMCID: PMC9811053 DOI: 10.1007/s12155-022-10552-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 12/09/2022] [Indexed: 05/19/2023]
Abstract
Abstract Disposal of sewage sludge (SS) is one of the problems in treatment plants; however, SS has a high-water volume and lacks some compounds and can be mixed with other biomass. The present study analyzed co-hydrothermal carbonization of sewage sludge with sawdust and corn stalk. This research aimed to optimize the process parameters, the temperature in the range of 180-300 °C, the reaction time in the range of 30-60 min, and pH in the range of 5-9 on the mass yield, energy yield, and high heat value (HHV) to increase the quality of hydrochar, and to analyze the effect of hydrothermal carbonization (HTC) on the characteristics of raw materials and hydrochar. The response surface method and Benken's box model were conducted using Design Expert 10 software. The optimal conditions for HHV, mass yield, and energy yield were 15.802 MJ/kg, 63.754%, and 67.415% respectively which occurred in the 205.358 °C, 30 min reaction time, and pH of 5. The temperature was the most influential parameter. The morphological, physicochemical, thermal, and crystalline properties of the hydrochar with the maximum HHV, mass yield and energy yield were evaluated as well. These results demonstrate that HTC is a suitable process to produce hydrochar, which can be used as a direct solid fuel. Highlights • Hydrothermal carbonization of sewage sludge with sawdust and cornstalk was investigated.• Response surface optimization hydrothermal carbonization process was studied.• The morphological, physicochemical, thermal, and crystalline properties of the hydrochar are reported.• The optimal HHV was 15.802 MJ/kg.• The process can produce hydrochar which can be used for direct combustion or activated carbon. Graphical abstract
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Affiliation(s)
- Aria Shakiba
- Faculty of Environment, Tehran University, Tehran, Iran
| | - Arash Aliasghar
- Department of Civil, Environmental & Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ USA
| | | | - Maryam Pazoki
- Faculty of Environment, Tehran University, Tehran, Iran
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18
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Villacorta A, Rubio L, Alaraby M, López-Mesas M, Fuentes-Cebrian V, Moriones OH, Marcos R, Hernández A. A new source of representative secondary PET nanoplastics. Obtention, characterization, and hazard evaluation. J Hazard Mater 2022; 439:129593. [PMID: 35843083 DOI: 10.1016/j.jhazmat.2022.129593] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 07/04/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Micro and nanoplastics (MNPLs) are emergent environmental pollutants requiring urgent information on their potential risks to human health. One of the problems associated with the evaluation of their undesirable effects is the lack of representative samples, matching those resulting from the environmental degradation of plastic wastes. To such end, we propose an easy method to obtain polyethylene terephthalate nanoplastics from water plastic bottles (PET-NPLs) but, in principle, applicable to any other plastic goods sources. An extensive characterization indicates that the proposed process produces uniform samples of PET-NPLs of around 100 nm, as determined by using AF4 and multi-angle and dynamic light scattering methodologies. An important point to be highlighted is that to avoid the metal contamination resulting from methods using metal blades/burrs for milling, trituration, or sanding, we propose to use diamond burrs to produce metal-free samples. To visualize the toxicological profile of the produced PET-NPLs we have evaluated their ability to be internalized by cells, their cytotoxicity, their ability to induce oxidative stress, and induce DNA damage. In this preliminary approach, we have detected their cellular uptake, but without the induction of significant biological effects. Thus, no relevant increases in toxicity, reactive oxygen species (ROS) induction, or DNA damage -as detected with the comet assay- have been observed. The use of representative samples, as produced in this study, will generate relevant data in the discussion about the potential health risks associated with MNPLs exposures.
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Affiliation(s)
- Aliro Villacorta
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain; Facultad de Recursos Naturales Renovables, Universidad Arturo Prat, Iquique, Chile
| | - Laura Rubio
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain; Nanobiology Laboratory, Department of Natural and Exact Sciences, Pontificia Universidad Católica Madre y Maestra, PUCMM, Santiago de los Caballeros, Dominican Republic
| | - Mohamed Alaraby
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain; Zoology Department, Faculty of Sciences, Sohag University, 82524 Sohag, Egypt
| | - Montserrat López-Mesas
- GTS-UAB Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Spain
| | - Victor Fuentes-Cebrian
- GTS-UAB Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Spain
| | - Oscar H Moriones
- Institut Català de Nanociència i Nanotecnologia (ICN2-UAB-CSIC-BIST), Campus UAB, Bellaterra, 08193 Barcelona, Spain; Universitat Autonòma de Barcelona (UAB), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Ricard Marcos
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain.
| | - Alba Hernández
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain.
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19
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Jogpethe A, Jadav T, Rajput N, Kumar Sahu A, Das R, Gupta A, Shard A, Sengupta P. LC/Q-TOF MS and LC/QQQ MS based bioanalysis of a new ferrocene derivative as a potential anticancer lead with promising drug-like characteristics. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1210:123469. [PMID: 36137491 DOI: 10.1016/j.jchromb.2022.123469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/23/2022] [Accepted: 09/09/2022] [Indexed: 10/31/2022]
Abstract
Pyrazolopyrimidine ring present in various approved drugs is reported to target the tyrosine kinase receptor. A new pyrazolopyrimidine ferrocene derivative, which targets tumor pyruvate kinase M2 showed an impressive antiproliferative profile against human oral squamous cell carcinoma cell line CAL27 assessed using Alamar blue assay. In line with the lead optimization process, the molecule was studied for physicochemical properties where a bioanalytical method has been developed in plasma on liquid chromatography-mass spectrometry and validated following the USFDA bioanalytical method validation guideline. Plasma stability and plasma protein binding potential of the molecule have been evaluated. All the major metabolites of the compound have been identified through in vitro metabolite study employing rat liver microsome, human liver microsome, and human S9 fractions. The in silico toxicity profile of the metabolites was assessed using ProTox II software. Log P, Log D, and pKa of the molecule were found to be 4.5, 5, and 12, respectively. The molecule was found to be quite stable in plasma and have a moderate affinity towards plasma proteins (about 75 % binding). Four major metabolites have been identified and characterized by UHPLCQ-TOF-MS. The metabolites were found to have a moderate safety profile. The validated bioanalytical method and the metabolic pathway will be useful for future clinical studies and to assess the safety profile of the molecule. The finding of this study may also be useful in analyzing the desired drug-like properties through bioanalysis while designing new chemical entities based on metallocenes.
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Affiliation(s)
- Ashish Jogpethe
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India
| | - Tarang Jadav
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India
| | - Niraj Rajput
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India
| | - Amit Kumar Sahu
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India
| | - Rudradip Das
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India
| | - Astha Gupta
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India
| | - Amit Shard
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India.
| | - Pinaki Sengupta
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Opp. Airforce Station, Palaj, Gandhinagar 382355, Gujarat, India.
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20
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Qin C, Yang G, Wu S, Zhang H, Zhu C. Synthesis, physicochemical characterization, antibacterial activity, and biocompatibility of quaternized hawthorn pectin. Int J Biol Macromol 2022; 213:1047-1056. [PMID: 35691431 DOI: 10.1016/j.ijbiomac.2022.06.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/12/2022] [Accepted: 06/06/2022] [Indexed: 11/20/2022]
Abstract
Quaternized polysaccharides are considered as potential antimicrobial materials due to their antimicrobial activity, biodegradability, biocompatibility, and water solubility. In this work, hawthorn pectin (HP) was obtained by ultrasound‑sodium citrate assisted extraction, quaternized hawthorn pectin (QHP) derivatives (namely: QHP-1, QHP-2, QHP-3, and QHP-4) with different degree of substitution were produced using (3-Chloro-2-hydroxypropyl) trimethylammonium chloride under alkaline conditions. The structure, properties, and morphology of HP and QHP were characterized by FTIR, XRD, 1H NMR, high-performance gel permeation chromatography (HPGPC), thermal analysis, and SEM. The results of FTIR and 1H NMR demonstrated that the quaternary ammonium modification was successful, and the degree of substitution (DS) of derivatives was calculated through elemental analysis. The determination of the minimum inhibitory concentrations and biofilm inhibition assay exhibited that QHP has a certain inhibitory effect on Escherichia coli and Staphylococcus aureus. Acceptable values of QHP were obtained in cytotoxicity assay on human keratinocytes.
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Affiliation(s)
- Chunge Qin
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Guangcheng Yang
- China School of Biology and Brewing Engineering, Taishan University, Tai'an 271000, PR China
| | - Shuai Wu
- Yantai Testing Center for Food and Drug, Yantai 264000, PR China
| | - Hao Zhang
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Chuanhe Zhu
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China.
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21
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Zhu J, Chen X, Li F, Wei K, Chen J, Wei X, Wang Y. Preparation, Physicochemical and Hypoglycemic Properties of Natural Selenium-Enriched Coarse Tea Glycoproteins. Plant Foods Hum Nutr 2022; 77:258-264. [PMID: 35612700 DOI: 10.1007/s11130-022-00975-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
Various functional components in tea have been well developed, but less research has been explored on glycoproteins in tea. In this paper, three types of glycoprotein fractions, namely tea selenium-binding glycoprotein1-1 (TSBGP1-1), TSBGP2-1, and TSBGP3-1, respectively, were extracted and purified from selenium-enriched coarse green tea. Chemical analysis revealed that three fractions were glycoproteins, but their selenium content, molecular weight, and monosaccharide composition were significantly different. Fourier transforms infrared (FT-IR) analysis indicated that three fractions contained characteristic absorption peaks of glycoproteins but differed in secondary structural composition. Thermogravimetric (TG) analysis showed that the thermal stability of the three fractions was dramatically distinct. The in vitro hypoglycemic activity showed that TSBGPs significantly activated the insulin receptor substrate 2 (IRS2)/protein kinase B (Akt) pathway in LO2 cells, then enhanced glucose metabolism and inhibited gluconeogenesis, and finally ameliorated insulin resistance (IR) and glucose metabolism disorders. Furthermore, Pearson correlation analysis reveals that the hypoglycemic activity was significantly correlated with Se, protein, monosaccharide composition (especially glucose), molecular weight, and secondary structure. Our results show that Se-enriched tea glycoprotein is a desirable candidate for developing anti-diabetic food, and TSBGP-2 and TSBGP-3 had a better regulation effect. Our results can provide a research reference for the extraction, physicochemical property, and function of selenium-enriched plant glycoproteins.
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Affiliation(s)
- Jiangxiong Zhu
- Institute of Engineering Food, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China
| | - Xueqing Chen
- Institute of Engineering Food, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China
| | - Fanglan Li
- Institute of Engineering Food, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China
| | - Kang Wei
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Jiwang Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, Hubei, China
| | - Xinlin Wei
- Institute of Engineering Food, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China.
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China.
| | - Yuanfeng Wang
- Institute of Engineering Food, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China.
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22
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Molnár B, Kinyua NI, Mótyán G, Leits P, Zupkó I, Minorics R, Balogh GT, Frank É. Regioselective synthesis, physicochemical properties and anticancer activity of 2-aminomethylated estrone derivatives. J Steroid Biochem Mol Biol 2022; 219:106064. [PMID: 35091086 DOI: 10.1016/j.jsbmb.2022.106064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/21/2022] [Accepted: 01/23/2022] [Indexed: 10/19/2022]
Abstract
The unique estrogen receptor (ER)-independent antiproliferative and apoptotic activity of 2-methoxyestradiol (2ME2) is well known, however, its use has been limited because of its poor oral bioavailability. In this study, novel 2-aminomethylated estrone (E) and estradiol (E2) derivatives structurally related to 2ME2 were synthesized, and their physicochemical properties as well as their in vitro cytotoxic effects were investigated in the hope of finding more selective antiproliferative agents with improved pharmacokinetic profile. The target compounds were synthesized from 2-dimethylaminomethylated E obtained regioselectively by a three-component Mannich reaction. Quaternization with methyl iodide followed by reacting the ammonium salt with various dialkyl and alicyclic secondary amines afforded the desired products in good yields. The reactions proceeded via a 1,4-nucleophilic addition of the applied secondary amines to the ortho-quinone methide (o-QM) intermediates, generated in situ from the salt by base-promoted β-elimination. The compound library has been enlarged with structurally similar E2 analogues obtained by stereoselective reduction and with some 17β-benzylamino derivatives prepared by reductive amination. The potential values of the novel E and E2 derivatives were characterised by means of three different approaches. At the first step compounds were virtually screened using physicochemical parameters. Physicochemical characterization was completed by kinetic solubility and in vitro intestinal-specific permeability measurement. Antiproliferative effects were additionally determined on a panel of malignant and non-cancerous cell lines. The evaluation of the pharmacological profile of the novel E and E2 derivatives was completed with the calculation of lipophilic efficacy (LiPE).
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Affiliation(s)
- Barnabás Molnár
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Njangiru Isaac Kinyua
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Gergő Mótyán
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Péter Leits
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - Renáta Minorics
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - György T Balogh
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary; Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.
| | - Éva Frank
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary.
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23
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Bai C, Chen R, Tan L, Bai H, Tian L, Lu J, Gao M, Sun H, Chi Y. Effects of multi-frequency ultrasonic on the physicochemical properties and bioactivities of polysaccharides from different parts of ginseng. Int J Biol Macromol 2022; 206:896-910. [PMID: 35318082 DOI: 10.1016/j.ijbiomac.2022.03.098] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/23/2022] [Accepted: 03/15/2022] [Indexed: 11/05/2022]
Abstract
The effect of multi-frequency ultrasonic extraction (MUE) on the yields, physicochemical properties, antioxidant and α-glucosidase inhibitory activities of polysaccharides (GPs) from different parts of ginseng were compared. Results demonstrated that yields of polysaccharides from different parts were found to vary significantly differences, in the order of roots (M-GRPs) > flowers (M-GFPs) > leaves (M-GLPs). Compared with heat reflux extraction, MUE not only increased the yield of GPs by up to 9.14%-210.87%, with higher uronic acid content (UAC: increased by 4.99%-53.48%), total phenolics content (TPC: increased by 7.60% to 42.61%), total flavonoids content (TFC: increased by 2.52%-5.45%), and lower molecular weight (Mw: reduced by 6.51%- 33.08%) and protein content (PC: reduced by 5.15%-8.95%), but also improved their functional properties and bioactivities. All six purified polysaccharides extracted by MUE were acidic pyran polysaccharide with different monosaccharide composition, possessed remarkable antioxidant and α-glucosidase inhibitory activities. Especially, M-GFP-1 exhibited the highest bioactivities, illustrated that the activities were highly correlated with UAC and TPC, Mw, and triple helical structure. These results indicate that MUE was an efficient technique for improving yields, physicochemical and functional properties and enhancing biological activities of polysaccharide.
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Affiliation(s)
- Chunlong Bai
- College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Ruizhan Chen
- College of Chemistry, Changchun Normal University, Changchun 130032, China.
| | - Li Tan
- Institute of Agricultural Quality Standard and Testing Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Helong Bai
- College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Li Tian
- College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Juan Lu
- College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Ming Gao
- College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Hui Sun
- College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Yu Chi
- College of Chemistry, Changchun Normal University, Changchun 130032, China
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24
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Macías-Pérez LA, Levard C, Barakat M, Angeletti B, Borschneck D, Poizat L, Achouak W, Auffan M. Contrasted microbial community colonization of a bauxite residue deposit marked by a complex geochemical context. J Hazard Mater 2022; 424:127470. [PMID: 34687997 DOI: 10.1016/j.jhazmat.2021.127470] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/24/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Bauxite residue is the alkaline byproduct generated during alumina extraction and is commonly landfilled in open-air deposits. The growth in global alumina production have raised environmental concerns about these deposits since no large-scale reuses exist to date. Microbial-driven techniques including bioremediation and critical metal bio-recovery are now considered sustainable and cost-effective methods to revalorize bauxite residues. However, the establishment of microbial communities and their active role in these strategies are still poorly understood. We thus determined the geochemical composition of different bauxite residues produced in southern France and explored the development of bacterial and fungal communities using Illumina high-throughput sequencing. Physicochemical parameters were influenced differently by the deposit age and the bauxite origin. Taxonomical analysis revealed an early-stage microbial community dominated by haloalkaliphilic microorganisms and strongly influenced by chemical gradients. Microbial richness, diversity and network complexity increased significantly with the deposit age, reaching an equilibrium community composition similar to typical soils after decades of natural weathering. Our results suggested that salinity, pH, and toxic metals affected the bacterial community structure, while fungal community composition showed no clear correlations with chemical variations.
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Affiliation(s)
- Luis Alberto Macías-Pérez
- Aix Marseille Université, CNRS, IRD, INRAE, Collège de France, CEREGE, Technopôle de l'Arbois-Méditerranée, BP80, 13545 Aix-en-Provence, France; Aix Marseille Univ, CEA, CNRS, BIAM, LEMIRE, Laboratory of Microbial Ecology of the Rhizosphere, ECCOREV FR 3098, F-13108 St-Paul-lez-Durance, France.
| | - Clément Levard
- Aix Marseille Université, CNRS, IRD, INRAE, Collège de France, CEREGE, Technopôle de l'Arbois-Méditerranée, BP80, 13545 Aix-en-Provence, France.
| | - Mohamed Barakat
- Aix Marseille Univ, CEA, CNRS, BIAM, LEMIRE, Laboratory of Microbial Ecology of the Rhizosphere, ECCOREV FR 3098, F-13108 St-Paul-lez-Durance, France.
| | - Bernard Angeletti
- Aix Marseille Université, CNRS, IRD, INRAE, Collège de France, CEREGE, Technopôle de l'Arbois-Méditerranée, BP80, 13545 Aix-en-Provence, France.
| | - Daniel Borschneck
- Aix Marseille Université, CNRS, IRD, INRAE, Collège de France, CEREGE, Technopôle de l'Arbois-Méditerranée, BP80, 13545 Aix-en-Provence, France.
| | | | - Wafa Achouak
- Aix Marseille Univ, CEA, CNRS, BIAM, LEMIRE, Laboratory of Microbial Ecology of the Rhizosphere, ECCOREV FR 3098, F-13108 St-Paul-lez-Durance, France.
| | - Mélanie Auffan
- Aix Marseille Université, CNRS, IRD, INRAE, Collège de France, CEREGE, Technopôle de l'Arbois-Méditerranée, BP80, 13545 Aix-en-Provence, France; Civil and Environmental Engineering, Duke University, Durham, NC 27708, USA.
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25
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Quintans ILADCR, de Araújo JVA, Rocha LNM, de Andrade AEB, do Rêgo TG, Deyholos MK. An overview of databases and bioinformatics tools for plant antimicrobial peptides. Curr Protein Pept Sci 2021; 23:6-19. [PMID: 34951361 DOI: 10.2174/1389203723666211222170342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/15/2021] [Accepted: 10/27/2021] [Indexed: 11/22/2022]
Abstract
Antimicrobial peptides (AMPs) are small, ribosomally synthesized proteins found in nearly all forms of life. In plants, AMPs play a central role in plant defense due to their distinct physicochemical properties. Due to their broad-spectrum antimicrobial activity and rapid killing action, plant AMPs have become important candidates for the development of new drugs to control plant and animal pathogens that are resistant to multiple drugs. Further research is required to explore the potential uses of these natural compounds. Computational strategies have been increasingly used to understand key aspects of antimicrobial peptides. These strategies will help to minimize the time and cost of "wet-lab" experimentation. Researchers have developed various tools and databases to provide updated information on AMPs. However, despite the increased availability of antimicrobial peptide resources in biological databases, finding AMPs from plants can still be a difficult task. The number of plant AMP sequences in current databases is still small and yet often redundant. To facilitate further characterization of plant AMPs, we have summarized information on the location, distribution, and annotations of plant AMPs available in the most relevant databases for AMPs research. We also mapped and categorized the bioinformatics tools available in these databases. We expect that this will allow researchers to advance in the discovery and development of new plant AMPs with potent biological properties. We hope to provide insights to further expand the application of AMPs in the fields of biotechnology, pharmacy, and agriculture.
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Affiliation(s)
| | | | | | | | | | - Michael K Deyholos
- IK Barber School of Arts and Sciences, University of British Columbia, Kelowna, BC. Canada
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26
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Raza H, Ameer K, Ma H, Liang Q, Ren X. Structural and physicochemical characterization of modified starch from arrowhead tuber (Sagittaria sagittifolia L.) using tri-frequency power ultrasound. Ultrason Sonochem 2021; 80:105826. [PMID: 34800838 PMCID: PMC8605420 DOI: 10.1016/j.ultsonch.2021.105826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/21/2021] [Accepted: 11/08/2021] [Indexed: 05/08/2023]
Abstract
Sagittaria sagittifolia L. is a well-known plant, belongs to the Alismataceae family. Sonication can improve the functional properties of starch; hence, the aim of this study was to develop ultrasonically modified arrowhead starch (UMAS) using a sophisticated and eco-friendly tri-frequency power ultrasound (20/40/60 kHz) method at 300, 600, and 900 W for 15 and 30 min. Significant (p < 0.05) increases in swelling power, solubility, and water and oil holding capacities were achieved. FTIR spectroscopy corroborated the ordered, amorphous, and hydrated crystals of the sonicated samples. Increases in sonication frequency and power led to significant (p < 0.05) increases in onset gelatinization temperatures. Scanning electron microscopic analysis of sonicated samples showed superficial cracks and roughness on starch granules appeared in a sonication power-dependent manner compared with that of untreated sample. Overall, the ultrasonically-treated samples showed improved physicochemical properties, which could be useful for industrial applications.
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Affiliation(s)
- Husnain Raza
- Jiangsu University, School of Food and Biological Engineering, Zhenjiang, Jiangsu 212013, China
| | - Kashif Ameer
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan
| | - Haile Ma
- Jiangsu University, School of Food and Biological Engineering, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Qiufang Liang
- Jiangsu University, School of Food and Biological Engineering, Zhenjiang, Jiangsu 212013, China.
| | - Xiaofeng Ren
- Jiangsu University, School of Food and Biological Engineering, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
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27
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Fanse S, Bao Q, Zou Y, Wang Y, Burgess DJ. Effect of crosslinking on the physicochemical properties of polydimethylsiloxane-based levonorgestrel intrauterine systems. Int J Pharm 2021; 609:121192. [PMID: 34666142 DOI: 10.1016/j.ijpharm.2021.121192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/03/2021] [Accepted: 10/10/2021] [Indexed: 11/29/2022]
Abstract
Polydimethylsiloxane (PDMS)-based levonorgestrel intrauterine systems (LNG-IUSs) such as Mirena® are long-acting drug-device combination products designed to release LNG for contraceptive purposes up to 6 years. LNG-IUSs consist of a hollow cylindrical drug-PDMS reservoir mounted with a polyethylene frame and covered by an outer PDMS membrane. PDMS is the release-controlling excipient present in both the matrix and the outer membrane. The degree of PDMS crosslinking is a key parameter in LNG-IUS manufacturing, dictating the elasticity and mechanical strength (which are critical parameters in molding and demolding of the cylindrical reservoirs). In addition, elasticity and mechanical strength are also important to prevent deformation during insertion into the uterine cavity. The objectives of this study were to investigate the impact of PDMS crosslinking on the physicochemical properties of LNG-IUSs and to develop appropriate testing methods for characterization of their mechanical strength. Formulations with different degrees of crosslinking were prepared by varying the ratio of the PDMS elastomer base and the crosslinking agent. A novel solvent swelling and extraction method was developed to determine the degree of PDMS crosslinking. The extent of crosslinking was also characterized via FTIR, Raman, 1H NMR, DSC, TGA and dynamic mechanical analysis. As expected, formulations with higher degrees of crosslinking showed lower crystallinity. Interestingly, the less crystalline formulations showed higher Tg values and storage moduli compared to the high crystalline formulations, implying that crosslinking is the predominant parameter governing the physicochemical and mechanical properties in LNG-IUSs. Correlations were established between PDMS crosslinking and the physicochemical properties of LNG-IUSs which will be useful for quality control purposes during formulation screening and development. A better understanding of the physicochemical characteristics of these complex products will facilitate drug product development.
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Affiliation(s)
- Suraj Fanse
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA
| | - Quanying Bao
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA
| | - Yuan Zou
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, FDA, Silver Spring, MD 20993, USA
| | - Yan Wang
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, FDA, Silver Spring, MD 20993, USA
| | - Diane J Burgess
- University of Connecticut, School of Pharmacy, Storrs, CT 06269, USA.
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28
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Mendonça CMN, Oliveira RC, Freire RKB, Piazentin ACM, Pereira WA, Gudiña EJ, Evtuguin DV, Converti A, Santos JHPM, Nunes C, Rodrigues LR, Oliveira RPS. Characterization of levan produced by a Paenibacillus sp. isolated from Brazilian crude oil. Int J Biol Macromol 2021; 186:788-799. [PMID: 34245738 DOI: 10.1016/j.ijbiomac.2021.07.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/04/2021] [Accepted: 07/03/2021] [Indexed: 10/20/2022]
Abstract
A levan-type fructooligosaccharide was produced by a Paenibacillus strain isolated from Brazilian crude oil, the purity of which was 98.5% after precipitation with ethanol and dialysis. Characterization by FTIR, NMR spectroscopy, GC-FID and ESI-MS revealed that it is a mixture of linear β(2 → 6) fructosyl polymers with average degree of polymerization (DP) of 18 and branching ratio of 20. Morphological structure and physicochemical properties were investigated to assess levan microstructure, degradation temperature and thermomechanical features. Thermal Gravimetric Analysis highlighted degradation temperature of 218 °C, Differential Scanning Calorimetry (DSC) glass transition at 81.47 °C, and Dynamic Mechanical Analysis three frequency-dependent transition peaks. These peaks, corresponding to a first thermomechanical transition event at 86.60 °C related to the DSC endothermic event, a second at 170.9 °C and a third at 185.2 °C, were attributed to different glass transition temperatures of oligo and polyfructans with different DP. Levan showed high morphological versatility and technological potential for the food, nutraceutical, and pharmaceutical industries.
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Affiliation(s)
- Carlos M N Mendonça
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil; CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rodrigo C Oliveira
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Rominne K B Freire
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Anna C M Piazentin
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Wellison A Pereira
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Eduardo J Gudiña
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Dmitry V Evtuguin
- CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, University of Genoa, Via Opera Pia 15, 16145 Genoa, Italy
| | - João H P M Santos
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil
| | - Cláudia Nunes
- CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Lígia R Rodrigues
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Ricardo P S Oliveira
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, 05508-000 São Paulo, Brazil.
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Affes S, Maalej H, Li S, Abdelhedi R, Nasri R, Nasri M. Effect of glucose substitution by low-molecular weight chitosan-derivatives on functional, structural and antioxidant properties of maillard reaction-crosslinked chitosan-based films. Food Chem 2021; 366:130530. [PMID: 34303204 DOI: 10.1016/j.foodchem.2021.130530] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 06/10/2021] [Accepted: 07/02/2021] [Indexed: 01/18/2023]
Abstract
In this study, the effects of different temperatures, incubation times and types of reducing sugars, including glucose and different low molecular weight (Mw) chito-oligosaccharides (COS) with varying acetylation degree (AD), on the extent of Maillard reaction (MR) on chitosan-based films were studied. Interestingly, an improvement of structural and functional properties of all MR-crosslinked films was noted, which is more pronounced by heating at higher temperature and exposure time. These findings were proved through Fourier-transform infrared and X-ray diffraction analyses. In addition, color change and Ultraviolet spectra demonstrate that glucose addition provides the high extent of MR, followed by COS1 (Mw < 4.4 kDa; AD, 18.20%) and COS2 (Mw < 4.4 kDa; AD, 10.63%). These results were confirmed by enhanced water resistance and thermal properties. Moreover, MR-chitosan/COS films showed the highest mechanical properties, whereas, glucose-loaded films were brittle, as demonstrated by scanning electron microscopy micrographs. Furthermore, MR-chitosan/COS1 films exhibited the better antioxidant behavior followed by chitosan/glucose and chitosan/COS2 films, mainly at higher heating-conditions. Thereby, MR-crosslinked chitosan/COS based films were attractive to be applied as functional and active coating-materials in various fields.
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Affiliation(s)
- Sawsan Affes
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia.
| | - Hana Maalej
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia; Department of Life Sciences, Faculty of Science of Gabes, Omar Ibn Khattab Street, Gabes 6029, Tunisia.
| | - Suming Li
- Institut Européen des Membranes, IEM-UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier, France
| | - Rania Abdelhedi
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Route Sidi Mansour, Po Box 1177, 3018 Sfax, Tunisia
| | - Rim Nasri
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia; Higher Institute of Biotechnology of Monastir, University of Monastir, Rue Taher Haddad, Monastir 5000, Tunisia
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, National School of Engineering of Sfax (ENIS), University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia
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30
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Chen ZL, Wang C, Ma H, Ma Y, Yan JK. Physicochemical and functional characteristics of polysaccharides from okra extracted by using ultrasound at different frequencies. Food Chem 2021; 361:130138. [PMID: 34062454 DOI: 10.1016/j.foodchem.2021.130138] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 05/07/2021] [Accepted: 05/16/2021] [Indexed: 11/27/2022]
Abstract
In this study, single- (SFU) and dual-frequency (DFU) ultrasounds were used to extract polysaccharides from okra (Abelmoschus esculentus (L.) Moench) pods (OPSs), and the physicochemical characteristics, functional properties, and in vitro biological activities of the OPSs were comparatively evaluated. Results showed that ultrasonic extractions at different frequencies led to remarkable variations in extraction yields, chemical components, monosaccharide compositions, molecular weights (MWs), surface morphologies, and rheological properties of the OPSs but hardly affected their preliminary structural features and thermal stabilities. The OPS obtained through DFU at 40/60 kHz with the lowest MWs (0.85-14.93 × 105 Da) and highest polyphenol content (7.38%) as well as loosest network structures showed superior antioxidant, cholesterol absorption and nitrite ion absorption capacities than the other OPSs, and the OPS extracted through SFU at 20 kHz with the highest carboxylate content (76.08%), MWs (7.28-32.83 × 105 Da) and degree of esterification (30.7%) exhibited higher bile acid-binding capacity than the other OPSs.
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Affiliation(s)
- Zhi-Ling Chen
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China; Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210018, China
| | - Chun Wang
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Haile Ma
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Yanhong Ma
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210018, China
| | - Jing-Kun Yan
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
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31
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Falleh H, Jemaa MB, Neves MA, Isoda H, Nakajima M, Ksouri R. Formulation, physicochemical characterization, and anti- E. coli activity of food-grade nanoemulsions incorporating clove, cinnamon, and lavender essential oils. Food Chem 2021; 359:129963. [PMID: 33951609 DOI: 10.1016/j.foodchem.2021.129963] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/18/2021] [Accepted: 04/25/2021] [Indexed: 11/27/2022]
Abstract
This research studies the application of a specific nanoemulsion as anti-Escherichia coli agent. The specific mixture was generated by a simplex-centroid design. Physicochemical parameters such as droplet average diameter, pH, viscosity, density, turbidity, whitening index, refractive index, stability (thermal, physical, and osmotic stability), and antibacterial activity kinetic, have been assessed. The mixture nanoemulsions had droplet diameters significantly smaller than those of clove or cinnamon nanoemulsions. Individual and mixture essential oils nanoemulsion exhibited appropriate stability under pH, thermal, and ionic stress as well as after mid-term storage. Antibacterial activity kinetic revealed the fast and pronounced efficacy of mixture nanoemulsions on E. coli (reach 98% of growth inhibition), especially for the nanoemulsion composed of 50% essential oil in the dispersed phase upon 20 days of storage. All data considered, the actual work evidences the promising advantages of using specific nanoemulsions as delivery systems of antibacterial agents in the beverage and food industry.
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Affiliation(s)
- Hanen Falleh
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cédria, BP 901, 2050 Hammam-lif, Tunisia.
| | - Mariem Ben Jemaa
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cédria, BP 901, 2050 Hammam-lif, Tunisia
| | - Marcos A Neves
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki 305-8572, Japan
| | - Hiroko Isoda
- ARENA (Alliance for Research for North Africa), Tsukuba University, Japan
| | - Mitsutoshi Nakajima
- Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki 305-8572, Japan
| | - Riadh Ksouri
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cédria, BP 901, 2050 Hammam-lif, Tunisia
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32
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Hu PY, Zhong YH, Feng JF, Li DX, Deng P, Zhang WL, Lei ZQ, Liu XM, Zhang GS. Pharmacokinetics of five phthalides in volatile oil of Ligusticum sinense Oliv.cv. Chaxiong, and comparison study on physicochemistry and pharmacokinetics after being formulated into solid dispersion and inclusion compound. BMC Complement Med Ther 2021; 21:129. [PMID: 33888111 PMCID: PMC8063472 DOI: 10.1186/s12906-021-03289-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 03/29/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUNDS The dried rhizome of Ligusticum sinense Oliv.cv. Chaxiong has been used to treat cardiovascular and cerebrovascular diseases, atherosclerosis, anemia and stroke. A high purity extract from chaxiong (VOC, brownish yellow oil) was extracted and separated. Its main components were senkyunolide A (SA, 33.81%), N-butylphthalide (NBP, 1.38%), Neocnidilide (NOL, 16.53%), Z-ligustilide (ZL, 38.36%), and butenyl phthalide (BP, 2.48%), respectively. Little is known about the pharmacokinetics of these phthalides in Chaxiong, and different preparations to improve the physicochemistry and pharmacokinetics of VOC have not been investigated. METHODS At different predetermined time points after oral administration or intravenous administration, the concentrations of SA, NBP, NOL, ZL and BP in the rat plasma were determined using LC-MS/MS, and the main PK parameters were investigated. VOC-P188 solid dispersion and VOC-β-CD inclusion compound were prepared by melting solvent method and grinding method, respectively. Moreover, the physicochemical properties, dissolution and pharmacokinetics of VOC-P188 solid dispersion and VOC-β-CD inclusion compound in rats were assessed in comparison to VOC. RESULTS The absorptions of SA, NBP, NOL, ZL and BP in VOC were rapid after oral administration, and the absolute bioavailability was less than 25%. After the two preparations were prepared, dissolution rate was improved at pH 5.8 phosphate buffer solution. Comparing VOC and physical mixture with the solid dispersion and inclusion compound, it was observed differences occurred in the chemical composition, thermal stability, and morphology. Both VOC-P188 solid dispersion and VOC-β-CD inclusion compound had a significantly higher AUC and longer MRT in comparison with VOC. CONCLUSION SA, NBP, NOL, ZL and BP in VOC from chaxiong possessed poor absolute oral bioavailability. Both VOC-P188 solid dispersion and VOC-β-CD inclusion compound could be prospective means for improving oral bioavailability of SA, NBP, NOL, ZL and BP in VOC.
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Affiliation(s)
- Peng-Yi Hu
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Ying-Huai Zhong
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
- Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Jian-Fang Feng
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
- Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Dong-Xun Li
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Ping Deng
- Nanchang Hangkong University, Nanchang, 330063, China
| | - Wen-Liu Zhang
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Zhi-Qiang Lei
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Xue-Mei Liu
- Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Guo-Song Zhang
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China.
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33
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Kowarik M, Wetter M, Haeuptle MA, Braun M, Steffen M, Kemmler S, Ravenscroft N, De Benedetto G, Zuppiger M, Sirena D, Cescutti P, Wacker M. The development and characterization of an E. coli O25B bioconjugate vaccine. Glycoconj J 2021; 38:421-435. [PMID: 33730261 PMCID: PMC8260533 DOI: 10.1007/s10719-021-09985-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/18/2021] [Accepted: 02/24/2021] [Indexed: 12/03/2022]
Abstract
Extraintestinal pathogenic Escherichia coli (ExPEC) cause a wide range of clinical diseases such as bacteremia and urinary tract infections. The increase of multidrug resistant ExPEC strains is becoming a major concern for the treatment of these infections and E. coli has been identified as a critical priority pathogen by the WHO. Therefore, the development of vaccines has become increasingly important, with the surface lipopolysaccharide constituting a promising vaccine target. This study presents genetic and structural analysis of clinical urine isolates from Switzerland belonging to the serotype O25. Approximately 75% of these isolates were shown to correspond to the substructure O25B only recently described in an emerging clone of E. coli sequence type 131. To address the high occurrence of O25B in clinical isolates, an O25B glycoconjugate vaccine was prepared using an E. coli glycosylation system. The O antigen cluster was integrated into the genome of E. coli W3110, thereby generating an E. coli strain able to synthesize the O25B polysaccharide on a carrier lipid. The polysaccharide was enzymatically conjugated to specific asparagine side chains of the carrier protein exotoxin A (EPA) of Pseudomonas aeruginosa by the PglB oligosaccharyltransferase from Campylobacter jejuni. Detailed characterization of the O25B-EPA conjugate by use of physicochemical methods including NMR and GC-MS confirmed the O25B polysaccharide structure in the conjugate, opening up the possibility to develop a multivalent E. coli conjugate vaccine containing O25B-EPA.
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Affiliation(s)
- Michael Kowarik
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland. .,LimmaTech Biologics AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.
| | - Michael Wetter
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zürich, Switzerland
| | - Micha A Haeuptle
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,Molecular Partners AG, Wagistrasse 14, 8952, Schlieren, Switzerland
| | - Martin Braun
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,LimmaTech Biologics AG, Grabenstrasse 3, 8952, Schlieren, Switzerland
| | - Michael Steffen
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,LimmaTech Biologics AG, Grabenstrasse 3, 8952, Schlieren, Switzerland
| | - Stefan Kemmler
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,Numab Therapeutics AG, Einsiedlerstrasse 34, 8820, Wädenswil, Switzerland
| | - Neil Ravenscroft
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa
| | - Gianluigi De Benedetto
- Dip. di Scienze della Vita, University di Trieste, 34127, Trieste, Italy.,National Institute for Biological Standards and Control, Blanche Lane, South Mimms, Potters Bar, Hertfordshire, EN6 3QG, UK
| | - Matthias Zuppiger
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,LimmaTech Biologics AG, Grabenstrasse 3, 8952, Schlieren, Switzerland
| | - Dominique Sirena
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,LimmaTech Biologics AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,GlycoEra AG, Grabenstrasse 3, 8952, Schlieren, Switzerland
| | - Paola Cescutti
- Dip. di Scienze della Vita, University di Trieste, 34127, Trieste, Italy
| | - Michael Wacker
- GlycoVaxyn AG, Grabenstrasse 3, 8952, Schlieren, Switzerland.,Wacker Biotech Consulting AG, Heuelstrasse 22, 8800, Thalwil, Switzerland
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34
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Al-Abboodi AS, Al-Sheikh WM, Eid EEM, Azam F, Al-Qubaisi MS. Inclusion complex of clausenidin with hydroxypropyl-β-cyclodextrin: Improved physicochemical properties and anti-colon cancer activity. Saudi Pharm J 2021; 29:223-235. [PMID: 33981171 PMCID: PMC8085604 DOI: 10.1016/j.jsps.2021.01.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 01/20/2021] [Indexed: 01/20/2023] Open
Abstract
The long-term objective of the present study was to prepare, physicochemically characterize and determine the anticancer of clausenidin/hydroxypropyl-β-cyclodextrin (Clu/HPβCD) inclusion complex. We used differential scanning calorimetry, X-ray diffractometer, fourier transform infrared spectroscopy, ultraviolet–visible spectrophotometer and 13C and 1H nuclear magnetic resonance followed by in vitro anticancer assays. The orientation and intermolecular interactions of Clausenidin within cyclodextrin cavity were also ascertained by molecular docking simulation accomplished by AutoDock Vina. The guest molecule was welcomed by the hydrophobic cavity of the host molecule and sustained by hydrogen bond between host/guest molecules. The constant drug release with time, and increased solubility were found after successful complexation with HPβCD as confirmed by physicochemical characterizations. Clausenidin had greater cytotoxic effect on colon cancer HT29 cells when incorporated into HPβCD cavity than dissolved in DMSO. Also, from a comparison of cell viability between normal and cancer cells, a reduced side effect was observed. The Clu/HPβCD inclusion complex triggered reactive oxygen species-mediated cytotoxicity in HT29 cells. The inclusion complex-treated HT29 cells showed cell cycle arrest and death by apoptosis associated with caspases activation. The presence of HPβCD seems to aid the anticancer activity of clausenidin.
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Affiliation(s)
| | | | - Eltayeb E M Eid
- Depratemnt of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Saudi Arabia
| | - Faizul Azam
- Depratemnt of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Saudi Arabia
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35
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Sampaio SL, Barreira JCM, Fernandes Â, Petropoulos SA, Alexopoulos A, Santos-Buelga C, Ferreira ICFR, Barros L. Potato biodiversity: A linear discriminant analysis on the nutritional and physicochemical composition of fifty genotypes. Food Chem 2021; 345:128853. [PMID: 33340900 DOI: 10.1016/j.foodchem.2020.128853] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/30/2020] [Accepted: 12/06/2020] [Indexed: 11/21/2022]
Abstract
Fifty potato genotypes from twenty-four different countries of origin, four different flesh colours (yellow, purple, red and marble) and different cultivation types (Andean accessions, landraces, breeder lines and cultivated varieties) were studied in terms of their nutritional and physicochemical characteristics. In general, cultivated varieties and breeder lines showed the highest similarity (slight differences only in some particular fatty acids distributions: C10:0, C12:0 and C22:0) concerning the physicochemical parameters assayed in this work, independently of the geographical origin or tuber flesh colour of these genotypes. Nonetheless, some of the studied landraces and Andean accessions proved to be similar enough to be considered as genotypes with good potential for commercial cultivation. These results can contribute to the supply of new potato genotypes into sustainable farming systems, supporting the protection of potato biodiversity, particularly Andean accessions, landraces and coloured genotypes (red or purple flesh) which are not widely cultivated so far.
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36
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Barros JC, Munekata PES, de Carvalho FAL, Domínguez R, Trindade MA, Pateiro M, Lorenzo JM. Healthy beef burgers: Effect of animal fat replacement by algal and wheat germ oil emulsions. Meat Sci 2020; 173:108396. [PMID: 33288362 DOI: 10.1016/j.meatsci.2020.108396] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/13/2020] [Accepted: 11/25/2020] [Indexed: 11/17/2022]
Abstract
The present study aimed to reformulate beef burgers to make them healthier through total replacement of pork backfat by algal (Al) and/or wheat germ (WG) oils emulsions. The addition of oils emulsions increased the protein and decreased the proportions of lipids in the burgers between 26% and 38%. Colour and technological parameters were not affected by the addition of oils, but increased all TPA parameters. α-tocopherol (Vitamin E) increased in reformulated samples. The wheat germ oil reduced the SFA concentration. The use of algal and/or wheat germ oils emulsions increase PUFA concentration. Beef burgers containing algal oil can be claimed as "high omega-3 content". Both oils improved the n-6/n-3 and PUFA/SFA nutritional ratios. Sensory differences were observed in the flavour and overall quality parameters. The formulations containing algal oil emulsion were similar to the Control. As a general conclusion, the use of algal oil emulsion as pork backfat substitute improve nutritional characteristics of burger without affecting technological or sensory properties.
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Affiliation(s)
- Julliane Carvalho Barros
- Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, 225 Duque de Caxias Norte Avenida, Jardim Elite, São Paulo, Pirassununga 13.635-900, Brazil
| | - Paulo E S Munekata
- Centro Tecnológico de la Carne de Galicia, Avd. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, Ourense 32900, Spain
| | - Francisco Allan Leandro de Carvalho
- Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, 225 Duque de Caxias Norte Avenida, Jardim Elite, São Paulo, Pirassununga 13.635-900, Brazil
| | - Rubén Domínguez
- Centro Tecnológico de la Carne de Galicia, Avd. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, Ourense 32900, Spain
| | - Marco Antonio Trindade
- Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, 225 Duque de Caxias Norte Avenida, Jardim Elite, São Paulo, Pirassununga 13.635-900, Brazil
| | - Mirian Pateiro
- Centro Tecnológico de la Carne de Galicia, Avd. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, Ourense 32900, Spain
| | - José Manuel Lorenzo
- Centro Tecnológico de la Carne de Galicia, Avd. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, Ourense 32900, Spain; Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, Ourense 32004, Spain.
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37
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Elichiry-Ortiz P, Maes P, Weidmann S, Champion D, Coelho C. Analytical combinations to evaluate the macromolecular composition of extracellular substances (ECS) from Lactobacillus plantarum cell culture media. Anal Bioanal Chem 2020; 413:519-531. [PMID: 33155130 DOI: 10.1007/s00216-020-03022-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/06/2020] [Accepted: 10/21/2020] [Indexed: 11/28/2022]
Abstract
Sugar-enriched media are used to produce extracellular substances (ECS) by Lactobacillus plantarum WCSF1, with a focus on growing stages and carbon source substrates. Combination of size exclusion chromatography and ATR-FTIR spectroscopy provides physicochemical patterns of bulk ECS produced along culture growing time. Secreted biopolymers present polydisperse and high molecular weight distributions, with significant amounts of carbohydrates and proteins. Results, supported by a multivariate statistical analysis, enable to differentiate the macromolecular content of bacterial ECS along the growing stages regardless of the growing media, highlighting a higher production of proteinaceous materials compared to polysaccharides. At the end of the exponential phase, common exoproteins were present in all the tested sugar-enriched media such as transglycosylases between 20 and 35 kDa, a muropeptidase at 36.9 kDa and a cell wall hydrolase. Additionally, L. plantarum WCFS1 secretes ECS with a greater diversity of proteins, when growing in the sucrose-enriched media. Graphical abstract.
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Affiliation(s)
- Peio Elichiry-Ortiz
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France
| | - Pauline Maes
- Clinical Innovation Proteomic Platform - CLIPP, 15, Bd Maréchal de Lattre de Tassigny, Bat. Medecine B3, BP37013, 21070, Dijon, France
| | - Stéphanie Weidmann
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France
| | - Dominique Champion
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France
| | - Christian Coelho
- University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR A 02.102, F-21000, Dijon, France.
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38
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Alzate P, Gerschenson L, Flores S. Ultrasound application for production of nano-structured particles from esterified starches to retain potassium sorbate. Carbohydr Polym 2020; 247:116759. [PMID: 32829872 DOI: 10.1016/j.carbpol.2020.116759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/29/2020] [Accepted: 07/10/2020] [Indexed: 12/19/2022]
Abstract
Ultrasound technique was successfully used to obtain nanostructured particles from native and esterified starch, able to support the antimicrobial potassium sorbate (PS). The starch used (native, acetate or oleate) affected the nanoparticles morphology and size: globular or plate like shapes were observed for esterified and native starch respectively, while the hydrodynamic diameters were between 28 and 236 nm, with a trend towards smaller sizes for modified starches. The PS retention capacity ranged from 41.5 -90 mg/g, showing acetylated particles the highest value. The particles were amorphous and had a low average molecular weight of 1.9-6.7 × 105 Da. Water retention capacity and solubility (S) were higher for modified starch particles. PS addition had minor effect, increasing S and reducing the apparent amylose content, with respect to particles without sorbate. These results demonstrated that starch modification combined with ultrasound were appropriate strategies to obtain novel and appropriate matrices to retain PS.
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Affiliation(s)
- Paola Alzate
- Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, (1428), Ciudad Autónoma de Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, Argentina
| | - Lía Gerschenson
- Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, (1428), Ciudad Autónoma de Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, Argentina
| | - Silvia Flores
- Universidad de Buenos Aires (UBA), Facultad de Ciencias Exactas y Naturales (FCEN), Departamento de Industrias, Intendente Güiraldes 2160, (1428), Ciudad Autónoma de Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, Argentina.
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Yoon MS, Lee YJ, Park CW, Hong JT, Baek DJ, Shin DH. In vitro anticancer evaluation of micelles containing N-(4-(2-((4-methoxybenzyl)amino)ethyl)phenyl)heptanamide, an analogue of fingolimod. Arch Pharm Res 2020; 43:1046-1055. [PMID: 33111965 DOI: 10.1007/s12272-020-01276-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/21/2020] [Indexed: 10/23/2022]
Abstract
Fingolimod has been evaluated for use as an anticancer agent. However, many steps are required to synthesize fingolimod because of its intricate structure. A fingolimod analogue, N-(4-(2-((4-methoxybenzyl)amino)ethyl)phenyl)heptanamide (MPH), also has anti-cancer effects and is easier to synthesize but is poorly soluble in water. To compensate for its poor water solubility, MPH-loaded polymeric micelles were prepared by thin film hydration method using various polymers and the physicochemical properties of the MPH-loaded micelles such as particle size, drug-loading (DL, %), and encapsulation efficiency (EE, %) were evaluated. A storage stability test was conducted to select the final formulation and the release profile of the MPH-loaded micelles was confirmed by in vitro release assay. MPH-loaded mPEG-b-PLA micelles were selected for further testing based on their stability and physicochemical properties; they were stable for stable for 14 days at 4 °C and 25 °C and for 7 days at 37 °C. They showed anti-cancer efficacy against both A549 and U87 cancer cells. Encapsulation of MPH in polymeric micelles did not decrease the in vitro cytotoxicity of MPH. The findings of this study lay the groundwork for future formulations that enable the effective and stable delivery of poorly water-soluble agents.
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Affiliation(s)
- Moon Sup Yoon
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Yu Jin Lee
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Chun-Woong Park
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea
| | - Dong Jae Baek
- College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, 58554, Republic of Korea
| | - Dae Hwan Shin
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju, 28160, Republic of Korea.
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40
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Khatun MHA, Wang L, Chen H. High solids all-inclusive polysaccharide hydrolysis of steam-exploded corn pericarp by periodic peristalsis. Carbohydr Polym 2020; 246:116483. [PMID: 32747226 DOI: 10.1016/j.carbpol.2020.116483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 05/19/2020] [Accepted: 05/19/2020] [Indexed: 11/20/2022]
Abstract
A new sequence of steam explosion (SE) with periodic peristalsis (PP) exploited to fractionate corn pericarp (CP), and its high solid cellulosic hydrolysis to increase sugar yield. In this investigation, the optimum SE-condition was 0.8 MPa/5 min., recovered around 12.62 % total sugars than untreated CP, whereas glucan and xylan digestibility reached around 97 % and 87 %, respectively. Besides that, the unground SECP conversion increased by 27.10 % glucan and 34.18 % xylan than the ground one. FE-SEM, FTIR, XRD results confirmed that SE significantly fractionated the amorphous substances that driven the increment of the crystallinity index. SE changed the functional groups without altering the lignin, and also the formation of degradations products was negligible and not detrimental to sugars conversion. An unpolluted SEPP enzymatic hydrolysis system at high solid loading (25 %) with compatible low cellulase dose (15 FPU g-1 solids) was beneficial to intensified sugars conversion.
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de Assis KMA, da Silva Leite JM, de Melo DF, Borges JC, Santana LMB, Dos Reis MML, Moreira VM, da Rocha WRV, Catão RMR, Dos Santos SG, da Silva Portela A, de Sousa Silva SM, de Oliveira TKB, de Souza da Silveira JW, Pires EG, Nonaka CFW, Sanches FAC, de Lima Damasceno BPG. Bicontinuous microemulsions containing Melaleuca alternifolia essential oil as a therapeutic agent for cutaneous wound healing. Drug Deliv Transl Res 2020; 10:1748-1763. [PMID: 32924099 DOI: 10.1007/s13346-020-00850-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
The Melaleuca alternifolia essential oil (MEO) has been widely used due to its healing and antimicrobial action. Its incorporation into drug delivery systems is a reality, and numerous studies have already been developed for this purpose. In this regard, the aim of this work was to develop, characterize, and evaluate the in vivo pharmacological activity of bicontinuous microemulsions (BME) containing MEO. Through diagram construction, a formulation consisting of Kolliphor® HS 15 (31.05%), Span® 80 (3.45%), isopropyl myristate (34.5%), and distilled water (31%) was selected and MEO was incorporated in the proportion of 3.45% (v/v). Morphological analysis characterization confirms that the system studied herein is a BME. The evaluated formulation showed physicochemical characteristics that allow its topical use. Rheologically, samples were characterized as pseudo-plastic non-Newtonian thixotropic fluids. The chromatographic method developed is in accordance with the current recommendations. The extraction method used assured a 100% recovery of the pharmacological marker (terpinen-4-ol). In vivo studies suggest that BME loaded with MEO may contribute to the healing process of skin wounds. In addition, it demonstrated antibacterial activity for Gram-positive and Gram-negative bacteria. Therefore, the BME system loaded with MEO is promising as a healing and antimicrobial agent for skin wounds.Graphical abstract.
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Affiliation(s)
- Karoll Moangella Andrade de Assis
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Joandra Maísa da Silva Leite
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Demis Ferreira de Melo
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Joyce Cordeiro Borges
- Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Lucas Matheus Barreto Santana
- Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Malu Maria Lucas Dos Reis
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Vandiara Martins Moreira
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Wilma Rainny Vieira da Rocha
- Laboratory of Microbiology, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | - Raïssa Mayer Ramalho Catão
- Laboratory of Microbiology, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | | | | | | | | | - João Walter de Souza da Silveira
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil
| | | | | | - Fátima Aparecida Castriani Sanches
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil.,Federal Institute of Education, Science and Technology Baiano, IFBA, Campus Catu, Catu, Bahia, Brazil
| | - Bolívar Ponciano Goulart de Lima Damasceno
- Graduate Program of Pharmaceutical Sciences, State University of Paraíba, Campina Grande, Paraiba, Brazil. .,Laboratory of Development and Characterization of Pharmaceutical Products, Department of Pharmacy, State University of Paraíba (UEPB), Campina Grande, Paraiba, Brazil.
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Hansen É, Monteiro de Aquim P, Hansen AW, Cardoso JK, Ziulkoski AL, Gutterres M. Impact of post-tanning chemicals on the pollution load of tannery wastewater. J Environ Manage 2020; 269:110787. [PMID: 32430280 DOI: 10.1016/j.jenvman.2020.110787] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/29/2020] [Accepted: 05/13/2020] [Indexed: 05/09/2023]
Abstract
The leather industry uses a large amount of chemicals to transform a raw hide into finished leather. Chemicals are not fully taken up by leather and thus end up in tannery wastewater. Physicochemical and toxicological characterization of tannery effluents has been widely assessed. However, the characterization of processing chemicals and their relation to the pollution load of effluents remains unknown. Thus, this study aimed to assess a physicochemical and cytotoxic characterization of chemicals used in the leather post-tanning process and to evaluate the contribution of each chemical to the pollution load of raw wastewater. This study was performed using a leather post-tanning formulation applied by a large tannery located in Brazil. Deacidulation agents caused high conductivity and dissolved solids in wastewater. Retanning agents (natural and synthetic tannins) were responsible for the largest inorganic pollution load, and synthetic tannins were more toxic than natural ones. Fatliquoring agents released the highest chemical oxygen demand load in wastewater and they were the chemical group that presented the highest toxicity. Fixing agent and black dye provided inorganic pollution load to wastewater, and nitrogen pollution of wastewater was mainly related to the neutralizing retanner and the black dye.
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Affiliation(s)
- Éverton Hansen
- Federal University of Rio Grande do Sul - UFRGS, Post-graduation Program of Chemical Engineering, Laboratory for Leather and Environmental Studies -LACOURO, Rua Eng. Luiz Englert, s/n°, Porto Alegre, RS, Brazil; Centro Universitário Ritter dos Reis - UniRitter, 555 Orfanotrófio - Alto Teresópolis, Porto Alegre, RS, Brazil; Feevale University, 2755, RS 239, Vila Nova, Novo Hamburgo, RS, Brazil.
| | | | - Alana Witt Hansen
- Feevale University, 2755, RS 239, Vila Nova, Novo Hamburgo, RS, Brazil
| | | | | | - Mariliz Gutterres
- Federal University of Rio Grande do Sul - UFRGS, Post-graduation Program of Chemical Engineering, Laboratory for Leather and Environmental Studies -LACOURO, Rua Eng. Luiz Englert, s/n°, Porto Alegre, RS, Brazil
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43
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Yan JK, Yu YB, Wang C, Cai WD, Wu LX, Yang Y, Zhang HN. Production, physicochemical characteristics, and in vitro biological activities of polysaccharides obtained from fresh bitter gourd (Momordica charantia L.) via room temperature extraction techniques. Food Chem 2020; 337:127798. [PMID: 32799166 DOI: 10.1016/j.foodchem.2020.127798] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 07/27/2020] [Accepted: 08/06/2020] [Indexed: 01/17/2023]
Abstract
In this study, polysaccharides (BPSs) were obtained from fresh bitter gourd (Momordica charantia L.) by room temperature extraction techniques, including three-phase partitioning (TPP) and ultrasonic-assisted extraction (UAE) performed in different solvents. The results showed that the extraction methods had significant influence on the extraction yield, chemical composition, weight-average molecular weight (Mw), monosaccharide composition, preliminary structural characterization and microstructure of the BPSs. The BPS-W sample obtained from the bitter gourd residue via UAE in distilled water had a higher uronic acid content (24.22%) and possessed stronger antioxidant capacities and α-amylase and α-glycosidase inhibitory activities than BPS-C extracted with UAE in citric acid, BPS-A extracted with UAE in 1.25 mol/L NaOH/0.05% NaBH4, and BPS-J extracted from bitter gourd juice by TPP. Moreover, BPS-A, which had the lowest Mws, showed the best bile acid-binding capacity among the four BPSs. This study had great potentials for the preparation of bioactive polysaccharides from fresh vegetables.
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Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Yun-Bo Yu
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Chun Wang
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Wu-Dan Cai
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Li-Xia Wu
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Yan Yang
- National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, China; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - He-Nan Zhang
- National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, China; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
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Roby MHH, Abdelaliem YF, Esmail AHM, Mohdaly AAA, Ramadan MF. Evaluation of Egyptian honeys and their floral origins: phenolic compounds, antioxidant activities, and antimicrobial characteristics. Environ Sci Pollut Res Int 2020; 27:20748-20756. [PMID: 32248421 DOI: 10.1007/s11356-020-08586-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
This study reports the physicochemical characterization of clover (Trifolium hybridum) and citrus (Citrus sinensis) honeys produced in Fayoum, Egypt, by evaluating the analysis of moisture content, pH, total soluble solids (TSS), electric conductivity (EC), total sugars, crude protein, ash content, total acidity, hydroxymethylfurfural (HMF), and total phenolic compounds (TPC). Antioxidant and antimicrobial activities of honey extracts and their flower extracts were determined. The results clearly indicated that ethanol gave the highest extraction yield of both clover and citrus flowers, while ethyl acetate showed the highest extraction recovery for the phenolic compounds, with TPC amounting to 338.5 and 536.4 mg gallic acid equivalent kg-1 fresh weight in clover and citrus flower extracts, respectively. Honey samples have less TPC than their flowers. The results showed that the TPC of citrus honey and its flowers was higher than clover honey and its flowers, respectively. Antioxidant activity was higher in extracts obtained from citrus flower than extracts of clover flower. The same trend was noticed for honey samples. Both clover and citrus honeys showed antimicrobial effects against tested microorganisms. HPLC analysis showed that p-coumaric acid was the main phenolic component in ethanol extracts of clover and citrus honeys, contributing about 83.0% and 52.2%, respectively. In citrus and clover flower extracts, syringic acid and quercetin were the main phenolics, respectively. It would be expected that characteristics of honey samples are mainly depended on the floral origin of nectar foraged by bees.
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Affiliation(s)
- Mohamed H H Roby
- Food Science and Technology, Faculty of Agriculture, Fayoum University, Faiyum, Egypt
| | | | | | - Adel A A Mohdaly
- Food Science and Technology, Faculty of Agriculture, Fayoum University, Faiyum, Egypt
| | - Mohamed Fawzy Ramadan
- Agricultural Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
- Deanship of Scientific Research, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia.
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Nikravesh N, Borchard G, Hofmann H, Philipp E, Flühmann B, Wick P. Factors influencing safety and efficacy of intravenous iron-carbohydrate nanomedicines: From production to clinical practice. Nanomedicine 2020; 26:102178. [PMID: 32145382 DOI: 10.1016/j.nano.2020.102178] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 01/06/2020] [Accepted: 02/19/2020] [Indexed: 02/06/2023]
Abstract
Iron deficiency is an important subclinical disease affecting over one billion people worldwide. A growing body of clinical records supports the use of intravenous iron-carbohydrate complexes for patients where iron replenishment is necessary and oral iron supplements are either ineffective or cannot be tolerated by the gastrointestinal tract. A critical characteristic of iron-carbohydrate drugs is the complexity of their core-shell structure, which has led to differences in the efficacy and safety of various iron formulations. This review describes parameters influencing the safety and effectiveness of iron-carbohydrate complexes during production, storage, handling, and clinical application. We summarized the physicochemical and biological assessments of commercially available iron carbohydrate nanomedicines to provide an overview of publicly available data. Further, we reviewed studies that described how subtle differences in the manufacturing process of iron-carbohydrate complexes can impact on the physicochemical, biological, and clinical outcomes of original product versus their intended copies or so-called iron "similar" products.
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Affiliation(s)
- Niusha Nikravesh
- Laboratory for Particles-Biology interactions, Department of materials meet life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland.
| | - Gerrit Borchard
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
| | - Heinrich Hofmann
- Institute of Materials, School of Technology and Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | | | | | - Peter Wick
- Laboratory for Particles-Biology interactions, Department of materials meet life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland.
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Shebl A, Hassan A, Salama DM, Abd El-Aziz ME, Abd Elwahed MS. Template-free microwave-assisted hydrothermal synthesis of manganese zinc ferrite as a nanofertilizer for squash plant ( Cucurbita pepo L). Heliyon 2020; 6:e03596. [PMID: 32258462 PMCID: PMC7096760 DOI: 10.1016/j.heliyon.2020.e03596] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/24/2020] [Accepted: 03/11/2020] [Indexed: 01/08/2023] Open
Abstract
Manganese, zinc, and iron are the most essential micronutrients required for plant growth and applied as foliar fertilizers. Herein, a simple template-free microwave-assisted hydrothermal green synthesis technique was adapted to produce manganese zinc ferrite nanoparticles (Mn0.5Zn0.5Fe2O4 NPs) at different temperatures (100, 120, 140, 160 and 180 °C). The prepared nanomaterials were employed at different concentrations (0, 10, 20, and 30 ppm) as foliar nanofertilizers during the squash (Cucurbita pepo L) planting process. X-ray diffraction patterns of the prepared nanomaterials confirmed successful production of the nanoferrite material. The prepared nanofertilizers showed type IV adsorption isotherm characteristic for mesoporous materials. FE-SEM and HR-TEM imaging showed that the nanoparticles were cubic shaped and increased in particle size with the increase in microwave temperature during production. The impact of application of the synthesized ferrite nanoparticles on vegetative growth, proximate analysis, minerals content and the yield of squash plant was investigated for two consecutive successful planting seasons. The nanoferrite synthesized at 160 °C and applied to the growing plants at a concentration of 10 ppm gave the highest increase in % yield (49.3 and 52.9%) compared to the untreated squash for the two consecutive seasons, whereas the maximum organic matter content (73.0 and 72.5%) and total energy (260 and 258.3 kcal/g) in squash leaves were obtained in plants treated with 30 ppm ferrite nanoparticles synthesized at 180 °C. On the other hand, the maximum organic matter content (76.6 and 76.3%) and total energy (253.6 and 250.3 kcal/g) in squash fruits were attained with plants supplied by 20 ppm ferrite nanoparticles synthesized at 160 °C. These results indicate that the simple template-free microwave-assisted hydrothermal green synthesis technique for the production of manganese zinc ferrite nanoparticles yields nanoparticles appropriate for use as fertilizer for Cucurbita pepo L.
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Affiliation(s)
- Ahmed Shebl
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
| | - A.A. Hassan
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
| | - Dina M. Salama
- Vegetable Research Department, National Research Centre, Giza, Egypt
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Affes S, Maalej H, Aranaz I, Kchaou H, Acosta N, Heras Á, Nasri M. Controlled size green synthesis of bioactive silver nanoparticles assisted by chitosan and its derivatives and their application in biofilm preparation. Carbohydr Polym 2020; 236:116063. [PMID: 32172878 DOI: 10.1016/j.carbpol.2020.116063] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/20/2020] [Accepted: 02/22/2020] [Indexed: 12/30/2022]
Abstract
The aim of this work was to explore the effect of various molecular weight (Mw) chitosan depolymerization products (CDP) on the silver nanoparticles (AgNPs) and chitosan/AgNPs blend films production. Produced AgNPs, stable during 30 days in a colloïdal form, were characterized in terms of UV-vis, transmission electron microscopy (TEM), dynamic light scattering (DLS) and fourier transform infrared spectroscopy (FTIR) analyses. AgNPs displayed interesting antibacterial and antioxidant properties that were affected by the physicochemical properties of used chitosans. Interestingly, CDP may be used for the preparation of bioactive and stable AgNPs. Additionally, chitosan/AgNPs blend films were prepared and characterized in terms of physiochemical and biological properties. As compared to the chitosan film, various properties were enhanced in the chitosan/AgNPs blend films, including light barrier, opacity, elongation at break, as well as bioactivities, thus suggesting that films could be used as novel alternative food packaging applications.
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de Souza FM, Dos Santos OAA. Adsorption of Diuron from aqueous solution onto commercial organophilic clay: kinetic, equilibrium and thermodynamic study. Environ Technol 2020; 41:603-616. [PMID: 30052131 DOI: 10.1080/09593330.2018.1505967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
Due to their abundance in nature, clays have been frequently studied in the adsorption of different emergent contaminants, since they have good efficiency and low cost. Therefore, the present study aimed to evaluate the performance of commercial organoclays as an adsorbent in the environmental remediation of wastewater containing the herbicide Diuron. The clay was characterized by the techniques of N2 physisorption, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and point of zero charge. In the batch adsorption experiments it was verified that the adsorption kinetics is ruled by the pseudo-second-order model (R2 > 0.97), and the adsorption equilibrium study at different temperatures (298, 302 and 308 K) showed that the non-linear models of Langmuir (R2 > 0.99) and Freundlich (R2 > 0.98) were those that present better adjustments to the experimental data. In addition, the adsorption capacity in monolayer (qmax) was 44.24 mg g-1, being higher or comparable to several works reported in the literature. As for the thermodynamic adsorption study, it was possible to infer that the process is spontaneous (ΔG°ads < 0) and endothermic (ΔH°ads = 71.58 kJ mol-1) in the temperature range studied. As far as the regeneration study was concerned, the maximum desorption capacity, 26.59 mg g-1, was obtained from the use of ethanol as eluent at 298 K.
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Clogston JD, Hackley VA, Prina-Mello A, Puri S, Sonzini S, Soo PL. Sizing up the Next Generation of Nanomedicines. Pharm Res 2019; 37:6. [PMID: 31828540 DOI: 10.1007/s11095-019-2736-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/20/2019] [Indexed: 01/30/2023]
Abstract
During the past two decades the nanomedicine field has experienced significant progress. To date, over sixty nanoparticle (NP) formulations have been approved in the US and EU while many others are in clinical or preclinical development, indicating a concerted effort to translate promising bench research to commercially viable pharmaceutical products. The use of NPs as novel drug delivery systems, for example, can improve drug safety and efficacy profiles and enable access to intracellular domains of diseased cells, thus paving the way to previously intractable biological targets. However, the measurement of their physicochemical properties presents substantial challenges relative to conventional injectable formulations. In this perspective, we focus exclusively on particle size, a core property and critical quality attribute of nanomedicines. We present an overview of relevant state-of-the-art technologies for particle sizing, highlighting the main parameters that can influence the selection of techniques suitable for a specific size range or material. We consider the increasing need, and associated challenge, to measure size in physiologically relevant media. We detail the importance of standards, key to validate any measurement, and the need for suitable reference materials for processes used to characterize novel and complex NPs. This perspective highlights issues critical to achieve compliance with regulatory guidelines and to support research and manufacturing quality control.
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Affiliation(s)
- Jeffrey D Clogston
- Nanotechnology Characterization Laboratory (NCL), Leidos Biomedical Research, Inc., Frederick, Maryland, USA.
| | - Vincent A Hackley
- National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, USA
| | | | | | | | - Patrick Lim Soo
- Pfizer Inc., Novel Delivery Technologies- PhRD, 68 Lowell Junction Road, Andover, Massachusetts, USA.
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Lee SWL, Paoletti C, Campisi M, Osaki T, Adriani G, Kamm RD, Mattu C, Chiono V. MicroRNA delivery through nanoparticles. J Control Release 2019; 313:80-95. [PMID: 31622695 PMCID: PMC6900258 DOI: 10.1016/j.jconrel.2019.10.007] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) are attracting a growing interest in the scientific community due to their central role in the etiology of major diseases. On the other hand, nanoparticle carriers offer unprecedented opportunities for cell specific controlled delivery of miRNAs for therapeutic purposes. This review critically discusses the use of nanoparticles for the delivery of miRNA-based therapeutics in the treatment of cancer and neurodegenerative disorders and for tissue regeneration. A fresh perspective is presented on the design and characterization of nanocarriers to accelerate translation from basic research to clinical application of miRNA-nanoparticles. Main challenges in the engineering of miRNA-loaded nanoparticles are discussed, and key application examples are highlighted to underline their therapeutic potential for effective and personalized medicine.
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Affiliation(s)
- Sharon Wei Ling Lee
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy; Singapore-MIT Alliance for Research & Technology (SMART), BioSystems and Micromechanics (BioSyM), Singapore, Singapore(3); Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore(3); Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research, Singapore, Singapore(3)
| | - Camilla Paoletti
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
| | - Marco Campisi
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
| | - Tatsuya Osaki
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 500 Technology Square, Room NE47-321, Cambridge, MA, 02139, USA; Institute of Industrial Science, The University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan(3)
| | - Giulia Adriani
- Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research, Singapore, Singapore(3); Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Roger D Kamm
- Singapore-MIT Alliance for Research & Technology (SMART), BioSystems and Micromechanics (BioSyM), Singapore, Singapore(3); Department of Mechanical Engineering, Massachusetts Institute of Technology, 500 Technology Square, Room NE47-321, Cambridge, MA, 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, Room NE47-321, Cambridge, MA, 02139, USA
| | - Clara Mattu
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy.
| | - Valeria Chiono
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
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