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Luo L, Jiang L, Chen T, Zhao Z, Kang C, Chen D, Long Y. Analysis of spatiotemporal changes mechanism of cell wall biopolymers and monosaccharide components in kiwifruit during Botryosphaeria dothidea infection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124837. [PMID: 39059260 DOI: 10.1016/j.saa.2024.124837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/28/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024]
Abstract
To further reveal the interaction mechanism between plants and pathogens, this study used confocal Raman microscopy spectroscopy (CRM) combined with chemometrics to visualize the biopolymers distribution of kiwifruit cell walls at different infection stages at the cellular micro level. Simultaneously, the changes in the content of various monosaccharides in fruit were studied at the molecular level using high-performance liquid chromatography (HPLC). There were significant differences in the composition of various nutrient components in the cell wall structure of kiwifruit at different infection times after infection by Botryosphaeria dothidea. PCA could cluster samples with infection time of 0-9 d into different infection stages, and SVM was used to predict the PCA classification results, the accuracy >96 %. Multivariate curve resolution-alternating least squares (MCR-ALS) helped to identify single substance spectra and concentration signals from mixed spectral signals. The pure substance chemical imaging maps of low methylated pectin (LMP), high methylated pectin (HMP), cellulose, hemicellulose, and lignin were obtained by analyzing the resolved concentration data. The imaging results showed that the lignin content in the kiwifruit cell wall increased significantly to resist pathogens infection after the infection of B. dothidea. With the development of infection, B. dothidea decomposed various substances in the host cell walls, allowing them to penetrate the interior of fruit cells. This caused significant changes in the form, structure, and distribution of various chemicals on the fruit cell walls in time and space. HPLC showed that glucose was the main carbon source and energy substance obtained by pathogens from kiwifruit during infection. The contents of galactose and arabinose, which maintained the structure and function of the fruit cell walls, decreased significantly and the cell wall structure was destroyed in the late stage of pathogens infection. This study provided a new perspective on the cellular structure changes caused by pathogenic infection of fruit and the defense response process of fruit and provided effective references for further research on the mechanisms of host-pathogen interactions in fruit infected by pathogens.
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Affiliation(s)
- Longhui Luo
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Lingli Jiang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Tingting Chen
- Engineering and Technology Research Center of Kiwifruit, Guizhou University, Guiyang 550025, China
| | - Zhibo Zhao
- Engineering and Technology Research Center of Kiwifruit, Guizhou University, Guiyang 550025, China
| | - Chao Kang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China
| | - Dongmei Chen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China.
| | - Youhua Long
- Engineering and Technology Research Center of Kiwifruit, Guizhou University, Guiyang 550025, China
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2
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Ma Y, Bi J, Feng S, Wu Z, Yi J. Higher molecular weight pectin inhibits ice crystal growth and its effect on the microstructural and physical properties of pectin cryogels. Carbohydr Polym 2024; 340:122312. [PMID: 38858011 DOI: 10.1016/j.carbpol.2024.122312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/08/2024] [Accepted: 05/22/2024] [Indexed: 06/12/2024]
Abstract
Understanding the formation of ice crystals is essential for tailoring the microstructure and physical properties of cryogels. This study investigated the effects and mechanisms of pectin molecular weight (Mw) on impacting ice crystal formation. Pectin fractions various Mw (10.13-212.20 kDa) were prepared by hydrothermal method. The solution of high Mw pectin fractions exhibited higher contact angle, lower water freedom, and stronger adsorption of water molecules. The splat experiment and molecular dynamic (MD) results confirmed that higher Mw pectin have stronger ice crystal growth inhibition activity than lower Mw pectin. Furthermore, the pore size distribution of the cryogel increased from 98-203 μm to 105-267 μm as the molecular weight decreased from 212.2 kDa to 121.0 kDa. Additionally, in the higher Mw pectin cryogel, stronger mechanical strength was observed. These findings suggested that changing the molecular weight of pectin has the potential to regulate the ice crystal growth, microstructure and physical properties of frozen products.
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Affiliation(s)
- Youchuan Ma
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China; College of Mechanical Engineering, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin University of Science and Technology, Tianjin, China
| | - Jinfeng Bi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.
| | - Shuhan Feng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Zhonghua Wu
- College of Mechanical Engineering, Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment, Tianjin University of Science and Technology, Tianjin, China
| | - Jianyong Yi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS)/Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.
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3
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Camaño Erhardt M, Solier YN, Inalbon MC, Mocchiutti P. Tuning the Properties of Xylan/Chitosan-Based Films by Temperature and Citric Acid Crosslinking Agent. Polymers (Basel) 2024; 16:2407. [PMID: 39274041 PMCID: PMC11397609 DOI: 10.3390/polym16172407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Revised: 08/21/2024] [Accepted: 08/22/2024] [Indexed: 09/16/2024] Open
Abstract
Petroleum-based food packaging causes environmental problems such as waste accumulation and microplastic generation. In this work, biobased films from stable polyelectrolyte complex suspensions (PECs) of xylan and chitosan (70 Xyl/30 Ch wt% mass ratio), at different concentrations of citric acid (CA) (0, 2.5, 5, 7.5 wt%), were prepared and characterized. Films were treated at two temperatures (135 °C, 155 °C) and times (30 min, 60 min) to promote covalent crosslinking. Esterification and amidation reactions were confirmed by Fourier Transform Infrared Spectroscopy and Confocal Raman Microscopy. Water resistance and dry and wet stress-strain results were markedly increased by thermal treatment, mainly at 155 °C. The presence of 5 wt% CA tended to increase dry and wet stress-strain values further, up to 88 MPa-10% (155 °C for 60 min), and 5.6 MPa-40% (155 °C for 30 min), respectively. The UV-blocking performance of the films was improved by all treatments, as was thermal stability (up to Tonset: 230 °C). Contact angle values were between 73 and 84°, indicating partly wettable surfaces. Thus, thermal treatment at low CA concentrations represents a good alternative for improving the performance of Xyl/Ch films.
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Affiliation(s)
- Martina Camaño Erhardt
- Instituto de Tecnología Celulósica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2654, Santa Fe S3000AOJ, Argentina
| | - Yamil Nahún Solier
- Instituto de Tecnología Celulósica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2654, Santa Fe S3000AOJ, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
| | - María Cristina Inalbon
- Instituto de Tecnología Celulósica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2654, Santa Fe S3000AOJ, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
| | - Paulina Mocchiutti
- Instituto de Tecnología Celulósica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2654, Santa Fe S3000AOJ, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
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4
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Ami D, Franco AR, Artusa V, Romerio A, Shaik MM, Italia A, Anguita J, Pasco S, Mereghetti P, Peri F, Natalello A. Vibrational spectroscopy coupled with machine learning sheds light on the cellular effects induced by rationally designed TLR4 agonists. Talanta 2024; 275:126104. [PMID: 38677166 DOI: 10.1016/j.talanta.2024.126104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/29/2024]
Abstract
In this work, we present the potential of Fourier transform infrared (FTIR) microspectroscopy to compare on whole cells, in an unbiased and untargeted way, the capacity of bacterial lipopolysaccharide (LPS) and two rationally designed molecules (FP20 and FP20Rha) to activate molecular circuits of innate immunity. These compounds are important drug hits in the development of vaccine adjuvants and tumor immunotherapeutics. The biological assays indicated that FP20Rha was more potent than FP20 in inducing cytokine production in cells and in stimulating IgG antibody production post-vaccination in mice. Accordingly, the overall significant IR spectral changes induced by the treatment with LPS and FP20Rha were similar, lipids and glycans signals being the most diagnostic, while the effect of the less potent molecule FP20 on cells resulted to be closer to control untreated cells. We propose here the use of FTIR spectroscopy supported by artificial intelligence (AI) to achieve a more holistic understanding of the cell response to new drug candidates while screening them in cells.
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Affiliation(s)
- Diletta Ami
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy
| | - Ana Rita Franco
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy
| | - Valentina Artusa
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy
| | - Alessio Romerio
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy
| | - Mohammed Monsoor Shaik
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy
| | - Alice Italia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy
| | - Juan Anguita
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160, Derio, Bizkaia, Spain; Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009, Bilbao, Bizkaia, Spain
| | - Samuel Pasco
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160, Derio, Bizkaia, Spain
| | | | - Francesco Peri
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy.
| | - Antonino Natalello
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milano, Italy.
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Jafari A, Seth K, Werner A, Shi S, Hofmann R, Hoyos-Villegas V. Probing Biological Nitrogen Fixation in Legumes Using Raman Spectroscopy. SENSORS (BASEL, SWITZERLAND) 2024; 24:4944. [PMID: 39123990 PMCID: PMC11314804 DOI: 10.3390/s24154944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/24/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024]
Abstract
Biological nitrogen fixation (BNF) by symbiotic bacteria plays a vital role in sustainable agriculture. However, current quantification methods are often expensive and impractical. This study explores the potential of Raman spectroscopy, a non-invasive technique, for rapid assessment of BNF activity in soybeans. Raman spectra were obtained from soybean plants grown with and without rhizobia bacteria to identify spectral signatures associated with BNF. δN15 isotope ratio mass spectrometry (IRMS) was used to determine actual BNF percentages. Partial least squares regression (PLSR) was employed to develop a model for BNF quantification based on Raman spectra. The model explained 80% of the variation in BNF activity. To enhance the model's specificity for BNF detection regardless of nitrogen availability, a subsequent elastic net (Enet) regularisation strategy was implemented. This approach provided insights into key wavenumbers and biochemicals associated with BNF in soybeans.
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Affiliation(s)
| | - Kritarth Seth
- AgResearch, Lincoln 7608, New Zealand; (K.S.); (S.S.)
| | - Armin Werner
- Lincoln Agritech, Lincoln University, Lincoln 7647, New Zealand;
| | - Shengjing Shi
- AgResearch, Lincoln 7608, New Zealand; (K.S.); (S.S.)
| | - Rainer Hofmann
- Plant Biology Department, Lincoln University, Lincoln 7647, New Zealand;
| | - Valerio Hoyos-Villegas
- Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, QC H3A 0G4, Canada;
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6
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Dabić Zagorac D, Sredojević M, Fotirić Akšić M, Ćirić I, Rabrenović B, Pećinar IM, Natić M. Untapped Potential of Side Stream Products from the Industrial Processing of Fruits: The Biosorption of Anthocyanins on Raspberry Seeds. Foods 2024; 13:2334. [PMID: 39123526 PMCID: PMC11312078 DOI: 10.3390/foods13152334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Natural biosorbents from agricultural side stream products are being investigated due to their large surface area and capacity for various compounds. The aim of the present work was to investigate the raspberry seeds and their sorption potential in the recovery of natural pigments. The experiment included raspberry seed and a liquid by-phase rich in anthocyanins initially collected during the depulping of the raspberry seed material. Biosorption was monitored by LC-MS analysis of the anthocyanins and by the total anthocyanin content (TAC) before and after biosorption. Cyanidins predominated in the seed material, followed by pelargonidins and peonidins. The efficiency of biosorption was examined by comparing the percent of removal. The heterogeneous polymer structure of the biosorbent, which consists mainly of lignin, cellulose, and hemicellulose, was characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy (RS). The FTIR spectra of raw and defatted seed indicated functional groups involved in biosorption and principal component analysis (PCA) performed on Raman spectra pointed to differences among biosorbents. The developed strategy for the valorization of raspberry seeds in the recovery of natural colorants was shown to be effective, with recoveries from 49 to 88 percent of total anthocyanins.
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Affiliation(s)
- Dragana Dabić Zagorac
- Innovative Centre of the Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11158 Belgrade, Serbia; (D.D.Z.); (M.S.)
| | - Milica Sredojević
- Innovative Centre of the Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11158 Belgrade, Serbia; (D.D.Z.); (M.S.)
| | - Milica Fotirić Akšić
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (M.F.A.); (B.R.); (I.M.P.)
| | - Ivanka Ćirić
- Innovative Centre of the Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11158 Belgrade, Serbia; (D.D.Z.); (M.S.)
| | - Biljana Rabrenović
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (M.F.A.); (B.R.); (I.M.P.)
| | - Ilinka M. Pećinar
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (M.F.A.); (B.R.); (I.M.P.)
| | - Maja Natić
- Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11158 Belgrade, Serbia
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7
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Jain E, Rose M, Jayapal PK, Singh GP, Ram RJ. Harnessing Raman spectroscopy for the analysis of plant diversity. Sci Rep 2024; 14:12692. [PMID: 38830877 PMCID: PMC11148151 DOI: 10.1038/s41598-024-62932-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024] Open
Abstract
Here, we explore the application of Raman spectroscopy for the assessment of plant biodiversity. Raman spectra from 11 vascular plant species commonly found in forest ecosystems, specifically angiosperms (both monocots and eudicots) and pteridophytes (ferns), were acquired in vivo and in situ using a Raman leaf-clip. We achieved an overall accuracy of 91% for correct classification of a species within a plant group and identified lignin Raman spectral features as a useful discriminator for classification. The results demonstrate the potential of Raman spectroscopy in contributing to plant biodiversity assessment.
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Affiliation(s)
- Ekta Jain
- Disruptive and Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, 1 Create Way, 03-06/07/8 Research Wing, Singapore, 138602, Singapore
| | - Michelle Rose
- Disruptive and Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, 1 Create Way, 03-06/07/8 Research Wing, Singapore, 138602, Singapore
| | - Praveen Kumar Jayapal
- Disruptive and Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, 1 Create Way, 03-06/07/8 Research Wing, Singapore, 138602, Singapore
| | - Gajendra P Singh
- Disruptive and Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, 1 Create Way, 03-06/07/8 Research Wing, Singapore, 138602, Singapore
| | - Rajeev J Ram
- Disruptive and Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, 1 Create Way, 03-06/07/8 Research Wing, Singapore, 138602, Singapore.
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 36-491, Cambridge, MA, 02139, USA.
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8
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Kaczmarska A, Pieczywek PM, Cybulska J, Zdunek A. Effect of enzymatic modification on the structure and rheological properties of diluted alkali-soluble pectin fraction rich in RG-I. Sci Rep 2024; 14:11454. [PMID: 38769105 PMCID: PMC11106296 DOI: 10.1038/s41598-024-62180-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 05/14/2024] [Indexed: 05/22/2024] Open
Abstract
This study focuses on pectin covalently linked in cell walls from two sources, apples and carrots, that was extracted using diluted alkali, and it describes changes in the rheological properties of diluted alkali-soluble pectin (DASP) due to enzymatic treatment. Given DASP's richness of rhamnogalacturonan I (RG-I), RG-I acetyl esterase (RGAE), rhamnogalacturonan endolyase (RGL), and arabinofuranosidase (ABF) were employed in various combinations for targeted degradation of RG-I pectin chains. Enzymatic degradations were followed by structural studies of pectin molecules using atomic force microscopy (AFM) as well as measurements of rheological and spectral properties. AFM imaging revealed a significant increase in the length of branched molecules after incubation with ABF, suggesting that arabinose side chains limit RG-I aggregation. Structural modifications were confirmed by changes in the intensity of bands in the pectin fingerprint and anomeric region on Fourier transform infrared spectra. ABF treatment led to a decrease in the stability of pectic gels, while the simultaneous use of ABF, RGAE, and RGL enzymes did not increase the degree of aggregation compared to the control sample. These findings suggest that the association of pectin chains within the DASP fraction may rely significantly on intermolecular interactions. Two mechanisms are proposed, which involve side chains as short-range attachment points or an extended linear homogalacturonan conformation favoring inter-chain interactions over self-association.
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Affiliation(s)
- Adrianna Kaczmarska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270, Lublin, Poland
| | - Piotr M Pieczywek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270, Lublin, Poland
| | - Justyna Cybulska
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270, Lublin, Poland
| | - Artur Zdunek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-270, Lublin, Poland.
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9
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Grumi M, Prieto C, Furtado RF, Cheng HN, Biswas A, Limbo S, Cabedo L, Lagaron JM. On the Unique Morphology and Elastic Properties of Multi-Jet Electrospun Cashew Gum-Based Fiber Mats. Polymers (Basel) 2024; 16:1355. [PMID: 38794549 PMCID: PMC11125206 DOI: 10.3390/polym16101355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
This study investigates the unique morphology and mechanical properties of multi-jet electrospun cashew gum (CG) when combined with high-molecular-weight polyethylene oxide (PEO) and glycerol. Cashew gum (CG) is a low-cost, non-toxic heteropolysaccharide derived from Anacardium occidentale trees. Initially, the electrospinnability of aqueous solutions of cashew gum alone or in combination with PEO was evaluated. It was found that cashew gum alone was not suitable for electrospinning; thus, adding a small quantity of PEO was needed to create the necessary molecular entanglements for fiber formation. By using a single emitter with a CG:PEO ratio of 85:15, straight and smooth fibers with some defects were obtained. However, additional purification of the cashew gum solution was needed to produce more stable and defect-free straight and smooth fibers. Additionally, the inclusion of glycerol as a plasticizer was required to overcome material fragility. Interestingly, when the optimized formulation was electrospun using multiple simultaneous emitters, thicker aligned fiber bundles were achieved. Furthermore, the resulting oriented fiber mats exhibited unexpectedly high elongation at break under ambient conditions. These findings underscore the potential of this bio-polysaccharide-based formulation for non-direct water contact applications that demand elastic properties.
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Affiliation(s)
- Mattia Grumi
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
| | - Cristina Prieto
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
| | - Roselayne F. Furtado
- Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita 2270, Fortaleza 60511-110, Brazil;
| | - Huai N. Cheng
- U.S. Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, 1100 Allen Toussaint Blvd., New Orleans, LA 70124, USA;
| | - Atanu Biswas
- U.S. Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 N. University St., Peoria, IL 61604, USA;
| | - Sara Limbo
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Via Giovanni Celoria 2, 20133 Milan, Italy;
| | - Luis Cabedo
- Polymers and Advanced Materials Group (PIMA), Universitat Jaume I (UJI), 12006 Castellon, Spain;
| | - Jose M. Lagaron
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain;
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10
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Petousis M, Michailidis N, Saltas V, Papadakis V, Spiridaki M, Mountakis N, Argyros A, Valsamos J, Nasikas NK, Vidakis N. Mechanical and Electrical Properties of Polyethylene Terephthalate Glycol/Antimony Tin Oxide Nanocomposites in Material Extrusion 3D Printing. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:761. [PMID: 38727355 PMCID: PMC11085549 DOI: 10.3390/nano14090761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024]
Abstract
In this study, poly (ethylene terephthalate) (PETG) was combined with Antimony-doped Tin Oxide (ATO) to create five different composites (2.0-10.0 wt.% ATO). The PETG/ATO filaments were extruded and supplied to a material extrusion (MEX) 3D printer to fabricate the specimens following international standards. Various tests were conducted on thermal, rheological, mechanical, and morphological properties. The mechanical performance of the prepared nanocomposites was evaluated using flexural, tensile, microhardness, and Charpy impact tests. The dielectric and electrical properties of the prepared composites were evaluated over a broad frequency range. The dimensional accuracy and porosity of the 3D printed structure were assessed using micro-computed tomography. Other investigations include scanning electron microscopy and energy-dispersive X-ray spectroscopy, which were performed to investigate the structures and morphologies of the samples. The PETG/6.0 wt.% ATO composite presented the highest mechanical performance (21% increase over the pure polymer in tensile strength). The results show the potential of such nanocomposites when enhanced mechanical performance is required in MEX 3D printing applications, in which PETG is the most commonly used polymer.
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Affiliation(s)
- Markos Petousis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Nikolaos Michailidis
- Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.M.); (A.A.)
- Centre for Research & Development of Advanced Materials (CERDAM), Centre for Interdisciplinary Research and Innovation, Balkan Centre, Building B’, 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - Vassilis Saltas
- Department of Electronic Engineering, Hellenic Mediterranean University, 73133 Chania, Greece;
| | - Vassilis Papadakis
- Institute of Electronic Structure and Laser of the Foundation for Research and Technology-Hellas (IESL-FORTH)–Hellas, N. Plastira 100m, 70013 Heraklion, Greece;
- Department of Industrial Design and Production Engineering, University of West Attica, 12243 Athens, Greece
| | - Mariza Spiridaki
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Nikolaos Mountakis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Apostolos Argyros
- Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.M.); (A.A.)
- Centre for Research & Development of Advanced Materials (CERDAM), Centre for Interdisciplinary Research and Innovation, Balkan Centre, Building B’, 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - John Valsamos
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Nektarios K. Nasikas
- Division of Mathematics and Engineering Sciences, Department of Military Sciences, Hellenic Army Academy, Vari, 16673 Attica, Greece;
| | - Nectarios Vidakis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
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11
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Guo P, Chen M, Wang W, Li Q, Chen X, Liang J, He Y, Wu Y. Exploration of Polysaccharides from Phyllanthus emblica: Isolation, Identification, and Evaluation of Antioxidant and Anti-Glycolipid Metabolism Disorder Activities. Molecules 2024; 29:1751. [PMID: 38675571 PMCID: PMC11052227 DOI: 10.3390/molecules29081751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/04/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Phyllanthus emblica is a natural medicinal herb with diverse bioactivities. Certain extracts from this herb have been confirmed to possess anti-glycolipid metabolic disorder activity. To further develop its utility value and explore its potential in combating glycolipid metabolic disorders, we designed a series of experiments to investigate the structure, antioxidant activity, and anti-glycolipid metabolic disorder activity of Phyllanthus emblica polysaccharides. In this study, we extracted and purified polysaccharides from Phyllanthus emblica and thoroughly analyzed their structure using various techniques, including NMR, methylation analysis, and surface-enhanced Raman spectroscopy. We investigated the hypolipidemic and anti-glycolipid metabolism disorder activity of Phyllanthus emblica polysaccharides for the first time utilizing oleic acid (OA) and advanced glycation end products (AGEs) as inducers. Additionally, the antioxidant activity of Phyllanthus emblica polysaccharides was assessed in vitro. These findings lay the groundwork for future investigations into the potential application of Phyllanthus emblica polysaccharides as an intervention for preventing and treating diabetes.
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Affiliation(s)
| | | | | | | | | | | | | | - Yanli Wu
- Department of Organic Chemistry, College of Pharmacy, Harbin Medical University, Harbin 150081, China
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12
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Michailidis N, Petousis M, Saltas V, Papadakis V, Spiridaki M, Mountakis N, Argyros A, Valsamos J, Nasikas NK, Vidakis N. Investigation of the Effectiveness of Silicon Nitride as a Reinforcement Agent for Polyethylene Terephthalate Glycol in Material Extrusion 3D Printing. Polymers (Basel) 2024; 16:1043. [PMID: 38674964 PMCID: PMC11054951 DOI: 10.3390/polym16081043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Polyethylene terephthalate glycol (PETG) and silicon nitride (Si3N4) were combined to create five composite materials with Si3N4 loadings ranging from 2.0 wt.% to 10.0 wt.%. The goal was to improve the mechanical properties of PETG in material extrusion (MEX) additive manufacturing (AM) and assess the effectiveness of Si3N4 as a reinforcing agent for this particular polymer. The process began with the production of filaments, which were subsequently fed into a 3D printer to create various specimens. The specimens were manufactured according to international standards to ensure their suitability for various tests. The thermal, rheological, mechanical, electrical, and morphological properties of the prepared samples were evaluated. The mechanical performance investigations performed included tensile, flexural, Charpy impact, and microhardness tests. Scanning electron microscopy and energy-dispersive X-ray spectroscopy mapping were performed to investigate the structures and morphologies of the samples, respectively. Among all the composites tested, the PETG/6.0 wt.% Si3N4 showed the greatest improvement in mechanical properties (with a 24.5% increase in tensile strength compared to unfilled PETG polymer), indicating its potential for use in MEX 3D printing when enhanced mechanical performance is required from the PETG polymer.
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Affiliation(s)
- Nikolaos Michailidis
- Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.M.); (A.A.)
- Centre for Research & Development of Advanced Materials (CERDAM), Centre for Interdisciplinary Research and Innovation, Balkan Centre, Building B’, 10th Km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - Markos Petousis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Vassilis Saltas
- Department of Electronic Engineering, Hellenic Mediterranean University, 73133 Chania, Greece;
| | - Vassilis Papadakis
- Institute of Electronic Structure and Laser of the Foundation for Research and Technology-Hellas (IESL-FORTH)—Hellas, N. Plastira 100m, 70013 Heraklion, Greece;
- Department of Industrial Design and Production Engineering, University of West Attica, 12243 Athens, Greece
| | - Mariza Spiridaki
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Nikolaos Mountakis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Apostolos Argyros
- Physical Metallurgy Laboratory, Mechanical Engineering Department, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.M.); (A.A.)
- Centre for Research & Development of Advanced Materials (CERDAM), Centre for Interdisciplinary Research and Innovation, Balkan Centre, Building B’, 10th Km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - John Valsamos
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
| | - Nektarios K. Nasikas
- Division of Mathematics and Engineering Sciences, Department of Military Sciences, Hellenic Army Academy, 16673 Vari, Greece;
| | - Nectarios Vidakis
- Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (M.P.); (M.S.); (N.M.); (J.V.)
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13
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Zexer N, Diehn S, Elbaum R. Deposition of silica in sorghum root endodermis modifies the chemistry of associated lignin. FRONTIERS IN PLANT SCIENCE 2024; 15:1370479. [PMID: 38633454 PMCID: PMC11021652 DOI: 10.3389/fpls.2024.1370479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/05/2024] [Indexed: 04/19/2024]
Abstract
Silica aggregates at the endodermis of sorghum roots. Aggregation follows a spotted pattern of locally deposited lignin at the inner tangential cell walls. Autofluorescence microscopy suggests that non-silicified (-Si) lignin spots are composed of two distinct concentric regions of varied composition. To highlight variations in lignin chemistry, we used Raman microspectroscopy to map the endodermal cell wall and silica aggregation sites in sorghum roots grown hydroponically with or without Si amendment. In +Si samples, the aggregate center was characterized by typical lignin monomer bands surrounded by lignin with a low level of polymerization. Farther from the spot, polysaccharide concentration increased and soluble silicic acid was detected in addition to silica bands. In -Si samples, the main band at the spot center was assigned to lignin radicals and highly polymerized lignin. Both +Si and -Si loci were enriched by aromatic carbonyls. We propose that at silica aggregation sites, carbonyl rich lignin monomers are locally exported to the apoplast. These monomers are radicalized and polymerized into short lignin polymers. In the presence of silicic acid, bonds typically involved in lignin extension, bind to silanols and nucleate silica aggregates near the monomer extrusion loci. This process inhibits further polymerization of lignin. In -Si samples, the monomers diffuse farther in the wall and crosslink with cell wall polymers, forming a ring of dense lignified cell wall around their export sites.
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Affiliation(s)
- Nerya Zexer
- Department of Biology, The Pennsylvania State University, University Park, PA, United States
| | - Sabrina Diehn
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Rivka Elbaum
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
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14
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Yang N, Jin Y, Zhou Y, Zhou X. Physicochemical characterization of pectin extracted from mandarin peels using novel electromagnetic heat. Int J Biol Macromol 2024; 262:130212. [PMID: 38365142 DOI: 10.1016/j.ijbiomac.2024.130212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/31/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
A novel electromagnetic heat extraction method was presented, whereby mandarin peels residue solution was located in a winding coil subjected to an oscillating magnetic field, and the pectin was extracted under appropriate conditions. Numerical relationships between applied magnetic field and induced electric field (IEF) in the extraction process were elaborated. The results showed that the induced current density, IEF and terminal temperature increased with increasing magnetic field. The maximum current density of 0.35 A/cm corresponds to the highest terminal temperature of 84.6 °C and IEF intensity of 26.6 V/cm. When magnetic field intensity was 1.39 T and the extraction time was 15 min, the maximum yield of pectin reached 9.16 %. In addition, all treatments impacted the ash content, protein content, water-holding capacity (WHC), and oil-holding capacity (OHC) of the obtained pectin. The pectin extracted by electromagnetic heat had the lowest DE value of 71.3 % with 126.55 kDa molecular weight, while the GalA content was at the highest level of 76.18 %. After different treatments, the composition of pectin monosaccharides changed, but there were slight differences in the composition of pectin polysaccharides. Moreover, the electromagnetic heat extracted pectin had light color and an obvious surface fragmentation of the peel residue.
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Affiliation(s)
- Na Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Yamei Jin
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China.
| | - Yuyi Zhou
- INDUC Scientific Co., Ltd., Wuxi 214000, PR China
| | - Xiaoqun Zhou
- INDUC Scientific Co., Ltd., Wuxi 214000, PR China
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15
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Clark KR, Goldberg Oppenheimer P. Vibrational spectroscopic profiling of biomolecular interactions between oak powdery mildew and oak leaves. SOFT MATTER 2024; 20:959-970. [PMID: 38189096 PMCID: PMC10828924 DOI: 10.1039/d3sm01392h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
Oak powdery mildew, caused by the biotrophic fungus Erysiphe alphitoides, is a prevalent disease affecting oak trees, such as English oak (Quercus robur). While mature oak populations are generally less susceptible to this disease, it can endanger young oak seedlings and new leaves on mature trees. Although disruptions of photosynthate and carbohydrate translocation have been observed, accurately detecting and understanding the specific biomolecular interactions between the fungus and the leaves of oak trees is currently lacking. Herein, via hybrid Raman spectroscopy combined with an advanced artificial neural network algorithm, the underpinning biomolecular interactions between biological soft matter, i.e., Quercus robur leaves and Erysiphe alphitoides, are investigated and profiled, generating a spectral library and shedding light on the changes induced by fungal infection and the tree's defence response. The adaxial surfaces of oak leaves are categorised based on either the presence or absence of Erysiphe alphitoides mildew and further distinguishing between covered or not covered infected leaf tissues, yielding three disease classes including healthy controls, non-mildew covered and mildew-covered. By analysing spectral changes between each disease category per tissue type, we identified important biomolecular interactions including disruption of chlorophyll in the non-vein and venule tissues, pathogen-induced degradation of cellulose and pectin and tree-initiated lignification of cell walls in response, amongst others, in lateral vein and mid-vein tissues. Via our developed computational algorithm, the underlying biomolecular differences between classes were identified and allowed accurate and rapid classification of disease with high accuracy of 69.6% for non-vein, 73.5% for venule, 82.1% for lateral vein and 85.6% for mid-vein tissues. Interfacial wetting differences between non-mildew covered and mildew-covered tissue were further analysed on the surfaces of non-vein and venule tissue. The overall results demonstrated the ability of Raman spectroscopy, combined with advanced AI, to act as a powerful and specific tool to probe foliar interactions between forest pathogens and host trees with the simultaneous potential to probe and catalogue molecular interactions between biological soft matter, paving the way for exploring similar relations in broader forest tree-pathogen systems.
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Affiliation(s)
- Kieran R Clark
- School of Chemical Engineering, Advanced Nanomaterials Structures and Applications Laboratories, College of Engineering and Physical Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- Birmingham Institute of Forest Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Pola Goldberg Oppenheimer
- School of Chemical Engineering, Advanced Nanomaterials Structures and Applications Laboratories, College of Engineering and Physical Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- Healthcare Technologies Institute, Institute of Translational Medicine, Mindelsohn Way, Birmingham, B15 2TH, UK
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16
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Davydova GA, Chaikov LL, Melnik NN, Gainutdinov RV, Selezneva II, Perevedentseva EV, Mahamadiev MT, Proskurin VA, Yakovsky DS, Mohan AG, Rau JV. Polysaccharide Composite Alginate-Pectin Hydrogels as a Basis for Developing Wound Healing Materials. Polymers (Basel) 2024; 16:287. [PMID: 38276695 PMCID: PMC10819040 DOI: 10.3390/polym16020287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
This article presents materials that highlight the bioengineering potential of polymeric systems of natural origin based on biodegradable polysaccharides, with applications in creating modern products for localized wound healing. Exploring the unique biological and physicochemical properties of polysaccharides offers a promising avenue for the atraumatic, controlled restoration of damaged tissues in extensive wounds. The study focused on alginate, pectin, and a hydrogel composed of their mixture in a 1:1 ratio. Atomic force microscopy data revealed that the two-component gel exhibits greater cohesion and is characterized by the presence of filament-like elements. The dynamic light scattering method indicated that this structural change results in a reduction in the damping of acoustic modes in the gel mixture compared to the component gels. Raman spectroscopy research on these gels revealed the emergence of new bonds between the components' molecules, contributing to the observed effects. The biocompatibility of the gels was evaluated using dental pulp stem cells, demonstrating that all the gels exhibit biocompatibility.
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Affiliation(s)
- Galina A. Davydova
- Federal State Institution of Science Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences (ITEB RAS), Institutskaya St., 3, Pushchino 142290, Moscow Region, Russia; (G.A.D.); (I.I.S.)
| | - Leonid L. Chaikov
- Federal State Budgetary Institution of Science P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Prospekt, 53, GSP-1, Moscow 119991, Russia; (L.L.C.); (N.N.M.); (E.V.P.); (M.T.M.)
| | - Nikolay N. Melnik
- Federal State Budgetary Institution of Science P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Prospekt, 53, GSP-1, Moscow 119991, Russia; (L.L.C.); (N.N.M.); (E.V.P.); (M.T.M.)
| | - Radmir V. Gainutdinov
- Federal Research Centre “Crystallography and Photonics” of the Russian Academy of Sciences, Leninsky Prospekt, 59, Moscow 119333, Russia;
| | - Irina I. Selezneva
- Federal State Institution of Science Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences (ITEB RAS), Institutskaya St., 3, Pushchino 142290, Moscow Region, Russia; (G.A.D.); (I.I.S.)
| | - Elena V. Perevedentseva
- Federal State Budgetary Institution of Science P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Prospekt, 53, GSP-1, Moscow 119991, Russia; (L.L.C.); (N.N.M.); (E.V.P.); (M.T.M.)
| | - Muhriddin T. Mahamadiev
- Federal State Budgetary Institution of Science P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Prospekt, 53, GSP-1, Moscow 119991, Russia; (L.L.C.); (N.N.M.); (E.V.P.); (M.T.M.)
| | - Vadim A. Proskurin
- Pushchino Branch of Federal State Budgetary Educational Institution of Higher Education “Russian Biotechnology University (ROSBIOTECH)”, Nauki Ave. 3, Pushchino 142290, Moscow Region, Russia;
| | - Daniel S. Yakovsky
- Department of Biotechnology, Institute of Natural Science, Federal State Budgetary Educational Institution of Higher Education “Tula State University”, Lenin Ave. 92, 9th Academic Building, Tula 300012, Russia;
| | - Aurel George Mohan
- Faculty of Medicine and Pharmacy, University of Oradea, 10 P-ta 1 December Street, 410073 Oradea, Romania;
- Department of Neurosurgery, Clinical Emergency Hospital Oradea, 65 Gheorghe Doja Street, 410169 Oradea, Romania
| | - Julietta V. Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, Moscow 119048, Russia
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17
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Athanasopoulou E, Bigi F, Maurizzi E, Karellou EIE, Pappas CS, Quartieri A, Tsironi T. Synthesis and characterization of polysaccharide- and protein-based edible films and application as packaging materials for fresh fish fillets. Sci Rep 2024; 14:517. [PMID: 38177403 PMCID: PMC10767132 DOI: 10.1038/s41598-024-51163-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/01/2024] [Indexed: 01/06/2024] Open
Abstract
The rising packaging industry together with global demand for sustainable production has increased the interest in developing biodegradable packaging materials. The aim of the study was to develop edible films based on pectin, gelatin, and hydroxypropyl methylcellulose and evaluate their applicability as biodegradable packaging materials for gilthead seabream fillets. Mechanical properties, water barriers, wettability of the films through contact angle measurement, optical, and UV-Vis barrier properties were evaluated for food packaging applications. The effective blend of polysaccharide and protein film-forming solutions was confirmed by the produced films with excellent optical properties, acceptable mechanical properties and adequate barriers to water vapor. The contact angle for pectin based and gelatin based films were higher than 90° indicating the hydrophobic films, while HPMC based films had contact angle lower than 90°. The produced films were tested as alternative and environmentally friendly packaging materials for gilthead seabream fillets during refrigerated storage. All tested packaging conditions resulted in similar shelf-life in packed gilthead seabream fillets (i.e. 7-8 days at 2 °C). The results showed that the developed films may reduce the use of conventional petroleum-based food packaging materials without affecting the shelf-life of fish.
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Affiliation(s)
- Evmorfia Athanasopoulou
- Laboratory of Food Process Engineering, Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Francesco Bigi
- Packtin, Via Del Chionso, 14/I, 42122, Reggio Emilia, RE, Italy
| | - Enrico Maurizzi
- Department of Life Science, University of Modena and Reggio Emilia, Via John Fitzgerald Kennedy 17/I, 42122, Reggio Emilia, RE, Italy
| | | | - Christos S Pappas
- Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | | | - Theofania Tsironi
- Laboratory of Food Process Engineering, Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece.
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18
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Juárez ID, Steczkowski MX, Chinnaiah S, Rodriguez A, Gadhave KR, Kurouski D. Using Raman spectroscopy for early detection of resistance-breaking strains of tomato spotted wilt orthotospovirus in tomatoes. FRONTIERS IN PLANT SCIENCE 2024; 14:1283399. [PMID: 38235194 PMCID: PMC10791937 DOI: 10.3389/fpls.2023.1283399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/08/2023] [Indexed: 01/19/2024]
Abstract
Tomato spotted wilt (TSW) disease caused by tomato spotted wilt orthotospovirus (TSWV, Orthotospovirus tomatomaculae) poses a significant threat to specialty and staple crops worldwide by causing over a billion dollars in crop losses annually. Current strategies for TSWV diagnosis heavily rely on nucleic acid or protein-based techniques which require significant technical expertise, and are invasive, time-consuming, and expensive, thereby catalyzing the search for better alternatives. In this study, we explored the potential of Raman spectroscopy (RS) in early detection of TSW in a non-invasive and non-destructive manner. Specifically, we investigated whether RS could be used to detect strain specific TSW symptoms associated with four TSWV strains infecting three differentially resistant tomato cultivars. In the acquired spectra, we observed notable reductions in the intensity of vibrational peaks associated with carotenoids. Using high-performance liquid chromatography (HPLC), we confirmed that TSWV caused a substantial decrease in the concentration of lutein that was detected by RS. Finally, we demonstrated that Partial Least Squares-Discriminant Analysis (PLS-DA) could be used to differentiate strain-specific TSW symptoms across all tested cultivars. These results demonstrate that RS can be a promising solution for early diagnosis of TSW, enabling timely disease intervention and thereby mitigating crop losses inflicted by TSWV.
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Affiliation(s)
- Isaac D. Juárez
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, TX, United States
| | | | | | - Axell Rodriguez
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, TX, United States
| | - Kiran R. Gadhave
- Department of Entomology, Texas A&M University, College Station, Texas, TX, United States
- Texas A&M AgriLife Research, Amarillo, Texas, TX, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas, TX, United States
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19
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Azimzadeh B, Martínez CE. Unraveling the role of polysaccharide-goethite associations on glyphosate' adsorption-desorption dynamics and binding mechanisms. J Colloid Interface Sci 2024; 653:1283-1292. [PMID: 37797504 DOI: 10.1016/j.jcis.2023.09.141] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/29/2023] [Accepted: 09/23/2023] [Indexed: 10/07/2023]
Abstract
HYPOTHESIS Glyphosate retention at environmental interfaces is strongly governed by adsorption and desorption processes. In particular, glyphosate can react with organo-mineral associations (OMAs) in soils, sediments, and aquatic environments. We hypothesize mineral-adsorbed biomacromolecules modulate the extent and rate of glyphosate adsorption and desorption where electrostatic and noncovalent interactions with organo-mineral surfaces are favored. EXPERIMENTS Here we use in-situ attenuated total reflectance Fourier-transform infrared, X-ray photoelectron spectroscopy, and batch experiments to characterize glyphosate' adsorption and desorption mechanisms and kinetics at an organo-mineral interface. Model polysaccharide-goethite OMAs are prepared with a range of organic (polysaccharide, PS) surface loadings. Sequential adsorption-desorption studies are conducted by introducing glyphosate and background electrolyte solutions, respectively, to PS-goethite OMAs. FINDINGS We find the extent of glyphosate adsorption at PS-goethite interfaces was reduced compared to that at the goethite interface. However, increased polysaccharide surface loading resulted in lower relative glyphosate desorption. At the same time, increased PS surface loading yielded slower glyphosate adsorption and desorption kinetics compared to corresponding processes at the goethite interface. We highlight that adsorbed PS promotes the formation of weak noncovalent interactions between glyphosate and PS-goethite OMAs, including the evolution of hydrogen bonds between (i) the amino group of glyphosate and PS and (ii) the phosphonate group of glyphosate and goethite. It is also observed that glyphosate' phosphonate group preferentially forms inner-sphere monodentate complexes with goethite in PS-goethite whereas bidentate configurations are favored on goethite.
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Affiliation(s)
- Behrooz Azimzadeh
- Soil and Crop Sciences, School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Carmen Enid Martínez
- Soil and Crop Sciences, School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853, USA.
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20
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Ni C, Lu W, Yuan X, Younis HGR, Ni J. Ambient plasma treatment of pectin in aqueous solution to produce a polymer used in packaging. Int J Biol Macromol 2024; 256:128511. [PMID: 38043658 DOI: 10.1016/j.ijbiomac.2023.128511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/14/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
Water resistance, mechanical behavior and coloration of pectin needs to be tuned for packing utilization. Plasma was used for the treatment of natural products, but there is no research on its effect on the biomass in the presence of ammonia. Though the reaction of pectin (PE) and ammonia was known to impart the ammonolysis and de-esterification, the plasma treatment on PE solution containing ammonia was explored to exemplify the amination and polymerization of the carbohydrate at the ambient condition. The plasma treatment increased the coloration of the solution due to the deprotonation of PE for the production of more sp2 carbon. The film from the amination of PE showed higher hydrophobicity and water stability than the bare PE. The plasma treatment alone decreased the Young's modulus (4.3 MPa versus 22 MPa), while the nitrogen addition enhanced the Young's modulus to 160 MPa and increased the tensile strength (28.7 MPa versus 25.8 MPa of PE). The hydrogen bonds from the amine group induced a glass-to-rubber transition at 77.9 °C by the increasing the crosslinking. This work provided a facile way of aminating and conjugating the biomass in solution to produce polymer with improved mechanical properties using plasma and ammonia incorporation.
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Affiliation(s)
- Chengsheng Ni
- College of Resources and Environment, Southwest University, Chongqing 400715, China.
| | - Wenxuan Lu
- College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Xuemei Yuan
- College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Heba G R Younis
- Agricultural Engineering Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Jiupai Ni
- College of Resources and Environment, Southwest University, Chongqing 400715, China.
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21
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Steczkowski M, McClellan K, Jessup R, Kurouski D. Raman-based diagnostics of drought, heat and light-induced stresses in three different varieties of hemp. PLANTA 2023; 259:21. [PMID: 38091099 DOI: 10.1007/s00425-023-04299-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023]
Abstract
MAIN CONCLUSION Hand-held Raman spectroscopy can be used for highly accurate differentiation between drought, heat and light-triggered stresses in hemp. The differentiation is based on the changes in the biochemistry of plants caused by such stresses. Hemp farming is a rapidly growing industry. This dioecious plant is primarily cultivated for its fibers, seeds, and cannabinoid-rich oils. The yield of these materials can be drastically lowered by many abiotic stresses, such as drought, heat and light. It becomes critically important to develop robust and reliable approaches that can be used to diagnose such abiotic stresses in hemp. In this study, we investigate the accuracy of Raman spectroscopy, an emerging tool within crop monitoring, in the confirmatory identification of drought, heat, and light-induced stresses in three varieties of hemp. Our results showed that mono, double and triple stresses uniquely alter plant biochemistry that results in small spectroscopic changes detected in the Raman spectra acquired from the hemp leaves. These changes could be used for the 80-100% accurate identification of individual abiotic stresses and their combinations in plants. These results demonstrate that a hand-held Raman spectrometer can be used for highly accurate, non-invasive, non-destructive, and label-free diagnostics of hemp stresses directly in the greenhouse or in the field.
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Affiliation(s)
- Mackenzi Steczkowski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Kyle McClellan
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Russell Jessup
- Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, 77843, USA.
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA.
- Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, 77843, USA.
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22
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Lim JS, Cho S, Capek P, Kim SC, Bleha R, Choi DJ, Ree J, Lee J, Synytsya A, Park YI. Water-extractable polysaccharide fraction PNE-P1 from Pinus koraiensis pine nut: Structural features and immunostimulatory activity. Carbohydr Res 2023; 534:108980. [PMID: 37952447 DOI: 10.1016/j.carres.2023.108980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/29/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023]
Abstract
The polysaccharide fraction PNE-P1 was isolated from hot water extract (PNE) of the defatted meal of pine nuts (Pinus koraiensis) using DEAE-cellulose column chromatography. This fraction had three components of molecular masses 1251, 616, and 303 g/mol consisting mainly of arabinose, xylose, and galacturonic acid at a molar ratio of 2:1.6:1. Structural analysis with FTIR/Raman, methylation and GC-MS, and NMR revealed that PNE-P1 is a cell wall polysaccharide complex including arabinan, heteroxylan, homogalacturonan (HM) and rhamnogalacturonan I (RG-I) parts. Being nontoxic to RAW 264.7 macrophages in the concentration range of 10-200 μg/mL, PNE-P1 promoted proliferation of these cells, significantly induced the secretion of proinflammatory cytokines (TNF-α and IL-6) and chemokines (RANTES and MIP-1α) and enhanced the expression of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and nitric oxide (NO). PNE-P1 also markedly induced macrophage-mediated phagocytosis of apoptotic Jurkat T cells. These results demonstrate that pine nuts Pinus koraiensis contain a complex of water-soluble plant cell wall polysaccharides, which can stimulate innate immunity by potentiating macrophage function.
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Affiliation(s)
- Jung Sik Lim
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
| | - Sarang Cho
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
| | - Peter Capek
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38, Bratislava, Slovakia.
| | - Seong Cheol Kim
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
| | - Roman Bleha
- Department of Carbohydrates and Cereals, University of Chemical Technology in Prague, Technická 5, 166 28, Prague 6, Czech Republic.
| | - Doo Jin Choi
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
| | - Jin Ree
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
| | - Jisun Lee
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
| | - Andriy Synytsya
- Department of Carbohydrates and Cereals, University of Chemical Technology in Prague, Technická 5, 166 28, Prague 6, Czech Republic.
| | - Yong Il Park
- Department of Biotechnology, Graduate School, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea; Department of Medical and Biological Sciences, The Catholic University of Korea, 43 Jibong-ro, Bucheon, Gyeonggi-do, 14662, Republic of Korea.
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23
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Stanciu MC, Nichifor M, Ailiesei GL, Popescu I, Hitruc GE, Ghimici L, Tuchilus CG. New Quaternary Ammonium Derivatives Based on Citrus Pectin. Polymers (Basel) 2023; 15:4492. [PMID: 38231903 PMCID: PMC10707904 DOI: 10.3390/polym15234492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/15/2023] [Accepted: 11/18/2023] [Indexed: 01/19/2024] Open
Abstract
New citrus pectin derivatives carrying pendant N,N-dimethyl-N-alkyl-N-(2-hydroxy propyl) ammonium chloride groups were achieved via polysaccharide derivatization with a mixture of N,N-dimethyl-N-alkyl amine (alkyl = ethyl, butyl, benzyl, octyl, dodecyl) and epichlorohydrin in aqueous solution. The structural characteristics of the polymers were examined via elemental analysis, conductometric titration, Fourier Transform Infrared spectroscopy (FTIR) and 1D (1H and 13C) nuclear magnetic resonance (NMR). Capillary viscosity measurements allowed for the study of viscometric behavior as well as the determination of viscosity-average molar mass for pristine polysaccharide and intrinsic viscosity ([η]) values for pectin and its derivatives. Dynamic light scattering measurements (DLS) showed that pectin-based polymers formed aggregates in aqueous solution with a unimodal distribution. Critical aggregation concentration (cac) for the hydrophobic pectin derivatives were determined using fluorescence spectroscopy. Atom force microscopy (AFM) images allowed for the investigation of the morphology of polymeric populations obtained in aqueous solution, consisting of flocs and aggregates for crude pectin and its hydrophilic derivatives and well-organized aggregates for lipophilic pectin derivatives. Antimicrobial activity, examined using the disc diffusion method, proved that all polymers were active against Staphylococcus aureus bacterium and Candida albicans yeast.
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Affiliation(s)
- Magdalena-Cristina Stanciu
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica-Voda Alley, 700487 Iasi, Romania; (M.N.); (G.-L.A.); (I.P.); (G.-E.H.); (L.G.)
| | - Marieta Nichifor
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica-Voda Alley, 700487 Iasi, Romania; (M.N.); (G.-L.A.); (I.P.); (G.-E.H.); (L.G.)
| | - Gabriela-Liliana Ailiesei
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica-Voda Alley, 700487 Iasi, Romania; (M.N.); (G.-L.A.); (I.P.); (G.-E.H.); (L.G.)
| | - Irina Popescu
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica-Voda Alley, 700487 Iasi, Romania; (M.N.); (G.-L.A.); (I.P.); (G.-E.H.); (L.G.)
| | - Gabriela-Elena Hitruc
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica-Voda Alley, 700487 Iasi, Romania; (M.N.); (G.-L.A.); (I.P.); (G.-E.H.); (L.G.)
| | - Luminita Ghimici
- “Petru Poni” Institute of Macromolecular Chemistry, 41A Gr. Ghica-Voda Alley, 700487 Iasi, Romania; (M.N.); (G.-L.A.); (I.P.); (G.-E.H.); (L.G.)
| | - Cristina G. Tuchilus
- Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 University Street, 700115 Iasi, Romania;
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24
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Guzmán-Armenteros TM, Ruales J, Cuesta-Plúa C, Bravo J, Sinche M, Vera E, Vera E, Vargas-Jentzsch P, Ciobotă V, Ortega-Ojeda FE, Proaño A, Echeverría A, Ramos-Guerrero L. Raman Spectroscopic and Sensory Evaluation of Cocoa Liquor Prepared with Ecuadorian Cocoa Beans Treated with Gamma Irradiation or Induced Electromagnetic Field Fermentation. Foods 2023; 12:3924. [PMID: 37959042 PMCID: PMC10647436 DOI: 10.3390/foods12213924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/19/2023] [Accepted: 09/26/2023] [Indexed: 11/15/2023] Open
Abstract
Cocoa liquor is the primary precursor of the worldwide highly appreciated commodity chocolate. Its quality depends on several factors, such as the type of cocoa, the fermentation process, and the control of the contaminants in the fermented beans. This study aims to evaluate whether the induced magnetic field treatment during the fermentation process or the pathogen reduction with gamma irradiation after the fermentation affect the characteristics of the cocoa liquor obtained from Ecuadorian cocoa beans. For this purpose, liquor samples from controls (standard process), from beans treated with an induced magnetic field up to 80 mT, and from beans irradiated with nominal doses up to 3 kGy were characterized through Raman spectroscopic analysis and sensorial evaluation. The most relevant bands of the cocoa liquor were assigned according to reports from the literature, spectroscopic data, and chemometrics. The spectra corresponding to different treatments and doses were visually very similar, but they could be discriminated using OPLS-DA models, where the most intense Raman signals were attributed to the lipid components. The sensorial evaluation rated the presence of floral, fruity, almondy, acid, and bitter flavors, along with astringency and intense aroma, and these attributes exhibited variable behavior depending on the dose of the irradiation or magnetic treatment. Therefore, both treatments may exert an influence on cocoa beans and, therefore, on the cocoa liquor quality.
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Affiliation(s)
- Tania María Guzmán-Armenteros
- Departamento de Ciencia de Alimentos y Biotecnología, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional (EPN), Quito 170525, Ecuador; (T.M.G.-A.); (J.R.); (E.V.)
| | - Jenny Ruales
- Departamento de Ciencia de Alimentos y Biotecnología, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional (EPN), Quito 170525, Ecuador; (T.M.G.-A.); (J.R.); (E.V.)
| | - Cristina Cuesta-Plúa
- Agencia de Regulación y Control Fito y Zoosanitario (AGROCALIDAD), Av. Interoceánica km 14 ½, Tumbaco 170184, Ecuador; (C.C.-P.); (J.B.)
| | - Juan Bravo
- Agencia de Regulación y Control Fito y Zoosanitario (AGROCALIDAD), Av. Interoceánica km 14 ½, Tumbaco 170184, Ecuador; (C.C.-P.); (J.B.)
| | - Marco Sinche
- Departamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, Quito 170525, Ecuador; (M.S.); (E.V.); (P.V.-J.)
| | - Edwin Vera
- Departamento de Ciencia de Alimentos y Biotecnología, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional (EPN), Quito 170525, Ecuador; (T.M.G.-A.); (J.R.); (E.V.)
| | - Edison Vera
- Departamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, Quito 170525, Ecuador; (M.S.); (E.V.); (P.V.-J.)
| | - Paul Vargas-Jentzsch
- Departamento de Ciencias Nucleares, Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, Quito 170525, Ecuador; (M.S.); (E.V.); (P.V.-J.)
| | - Valerian Ciobotă
- Rigaku Analytical Devices, Inc., 30 Upton Drive, Suite 2, Wilmington, MA 01887, USA;
| | - Fernando E. Ortega-Ojeda
- Departamento de Ciencias de la Computación, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.6, 28871 Alcalá de Henares, Madrid, Spain;
- Instituto Universitario de Investigación en Ciencias Policiales (IUICP), Universidad de Alcalá, Libreros 27, 28801 Alcalá de Henares, Madrid, Spain
| | - Andrés Proaño
- Programa de Reactivación de Café y Cacao, Ministerio de Agricultura y Ganadería, Av. Eloy Alfaro y Av. Amazonas, Quito 170518, Ecuador;
| | - Armando Echeverría
- Facultad de Ciencias Técnicas, Universidad Internacional del Ecuador, Quito 170411, Ecuador;
| | - Luis Ramos-Guerrero
- Grupo de Investigación Bio-Quimioinformática, Carrera de Ingeniería Agroindustrial, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Las Américas (UDLA), Quito 170503, Ecuador
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25
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Liu H, Liao J, Zhu T, Ma Z, Zhao X, Nan J. In Situ Hydrogel Polymerization to Form a Flexible Polysaccharide Synergetic Binder Network for Stabilizing SiO x/C Anodes. ACS APPLIED MATERIALS & INTERFACES 2023; 15:49071-49082. [PMID: 37828910 DOI: 10.1021/acsami.3c08610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Today, the commercial application of silicon oxides (SiOx, 1 < x < 2) in lithium-ion batteries (LIBs) still faces the challenge of rapid performance degradation. In this work, by integrating hydrothermal and physicomechanical processes, water-soluble locust bean gum (LBG) and xanthan gum (XG) are utilized to in situ form an LBG@XG binder network to improve the performance of SiOx/C anodes. As a synergy of LBG and XG polysaccharides in hydrogel polymerization, LBG@XG can tightly wrap around SiOx/C particles to prevent plate damage. The flexible SiOx/C anode with the LBG@XG binder exhibits capacity retentions of 74.1% and 76.4% after 1000 cycles at 0.5 A g-1 and 1 A g-1, respectively. The full battery capacity remains stable for 100 cycles at 1 C and the rate performance is excellent (103 mAh g-1 at 3 C). This LBG@XG is demonstrated to be highly electronegative and has a strong attraction to SiOx/C particles, thereby reducing the expansion and increasing the stability of the SiOx/C anodes when coupled with the flexible binder network. In addition to the promising LBG@XG binder, this work also provides a research idea for developing green water-based binders suitable for application in the SiOx/C anodes of LIBs.
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Affiliation(s)
- Haoyuan Liu
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Jianping Liao
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Tianming Zhu
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Zhen Ma
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Xiaoyang Zhao
- School of Geomatic and Environmental Engineering, Henan Polytechnic Institute, Nanyang 473000, P.R. China
| | - Junmin Nan
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
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26
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Chalapud MC, Salgado-Cruz MDLP, Baümler ER, Carelli AA, Morales-Sánchez E, Calderón-Domínguez G, García-Hernández AB. Study of the Physical, Chemical, and Structural Properties of Low- and High-Methoxyl Pectin-Based Film Matrices Including Sunflower Waxes. MEMBRANES 2023; 13:846. [PMID: 37888018 PMCID: PMC10608882 DOI: 10.3390/membranes13100846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/11/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
The development of bio-based materials remains one of the most important alternatives to plastic materials. Although research in this field is growing, reporting various materials and methodologies, it is still necessary to increase exploration. The aim of this work was to expand and complement previous research on the preparation and characterization of high- and low-methoxyl pectin films obtained by casting, with the addition of commercial and recovered sunflower waxes. The results showed that the addition of sunflower waxes to the pectin matrix generated some discontinuity in the aggregate, increasing the thickness and roughness of the film. However, due to their hydrophobic nature, the waxes contributed to lower vapor transmission rate values of the films. On the other hand, the low-methoxyl pectin films had a more crystalline structure, which could help to diminish water vapor permeability values, mechanical resistance and rigidity, and improve their elongation. Regarding chemical characteristics, most of the raw materials' chemical groups were found in the resulting films, and the presence of C-H bending due to pectin gelation was observed. Finally, the compatibility and contribution of pectin and sunflower waxes to the production of the films were demonstrated, as well as the possibility of using materials from industrial waste in food packaging applications.
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Affiliation(s)
- Mayra C. Chalapud
- Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca 8000, Argentina; (M.C.C.); (E.R.B.); (A.A.C.)
- Planta Piloto de Ingeniería Química–PLAPIQUI (UNS-CONICET), Bahía Blanca 8000, Argentina
| | - Ma. de la Paz Salgado-Cruz
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Nueva Industrial Vallejo, Gustavo A. Madero, Ciudad de México 07738, Mexico;
| | - Erica R. Baümler
- Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca 8000, Argentina; (M.C.C.); (E.R.B.); (A.A.C.)
- Planta Piloto de Ingeniería Química–PLAPIQUI (UNS-CONICET), Bahía Blanca 8000, Argentina
| | - Amalia A. Carelli
- Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca 8000, Argentina; (M.C.C.); (E.R.B.); (A.A.C.)
- Planta Piloto de Ingeniería Química–PLAPIQUI (UNS-CONICET), Bahía Blanca 8000, Argentina
| | - Eduardo Morales-Sánchez
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Unidad Querétaro, Cerro Blanco No. 141, Col. Colinas del Cimatario, Santiago de Querétaro 76090, Mexico;
| | - Georgina Calderón-Domínguez
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu 399, Nueva Industrial Vallejo, Gustavo A. Madero, Ciudad de México 07738, Mexico;
| | - Alitzel B. García-Hernández
- Consejo Nacional de Humanidades Ciencias y Tecnologías-Centro de Investigación en Química Aplicada-Unidad Monterrey, Parque de Investigación e Innovación Tecnológica, Autopista al Aeropuerto KM 10, Av. Alianza Sur 303, Ciudad Apodaca 66647, Mexico;
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Angelov A, Georgieva A, Petkova M, Bartkiene E, Rocha JM, Ognyanov M, Gotcheva V. On the Molecular Selection of Exopolysaccharide-Producing Lactic Acid Bacteria from Indigenous Fermented Plant-Based Foods and Further Fine Chemical Characterization. Foods 2023; 12:3346. [PMID: 37761055 PMCID: PMC10527965 DOI: 10.3390/foods12183346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Exopolysaccharides (EPSs) produced by lactic acid bacteria present a particular interest for the food industry since they can be incorporated in foods via in situ production by selected starter cultures or applied as natural additives to improve the quality of various food products. In the present study, 43 strains were isolated from different plant-based fermented foods and identified by molecular methods. The species found were distinctively specific according to the food source. Only six Lactiplantibacillus plantarum strains, all isolated from sauerkraut, showed the ability to produce exopolysaccharide (EPS). The utilization of glucose, fructose and sucrose was explored with regard to EPS and biomass accumulation by the tested strains. Sucrose was clearly the best carbon source for EPS production by most of the strains, yielding up to 211.53 mg/L by strain Lactiplantibacillus plantarum ZE2, while biomass accumulation reached the highest levels in the glucose-based culture medium. Most strains produced similar levels of EPS with glucose and fructose, while fructose was utilized more poorly for biomass production, yielding about 50% of biomass compared to glucose for most strains. Composition analysis of the EPSs produced by strain Lactiplantibacillus plantarum ZE2 from glucose (EPS-1) and fructose (EPS-2) revealed that glucose (80-83 mol%) and protein (41% w/w) predominated in both analyzed EPSs. However, the yield of EPS-1 was twice higher than that of EPS-2, and differences in the levels of all detected sugars were found, which shows that even for the same strain, EPS yield and composition vary depending on the carbon source. These results may be the basis for the development of tailored EPS-producing starter cultures for food fermentations, as well as technologies for the production of EPS for various applications.
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Affiliation(s)
- Angel Angelov
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria;
| | - Aneliya Georgieva
- Institute of Food Preservation and Quality, 154 Vasil Aprilov Blvd., 4000 Plovdiv, Bulgaria;
| | - Mariana Petkova
- Department of Microbiology and Ecological Biotechnologies, Agricultural University, 12 Mendeleev Blvd., 4000 Plovdiv, Bulgaria;
| | - Elena Bartkiene
- Department of Food Safety and Quality, Faculty of Veterinary, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania;
- Faculty of Animal Sciences, Institute of Animal Rearing Technologies, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania
| | - João Miguel Rocha
- Universidade Católica Portuguesa, CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal;
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
| | - Manol Ognyanov
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria;
| | - Velitchka Gotcheva
- Department of Biotechnology, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria;
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28
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Bolat F, Ghitman J, Necolau MI, Vasile E, Iovu H. A Comparative Study of the Impact of the Bleaching Method on the Production and Characterization of Cotton-Origin Nanocrystalline Cellulose by Acid and Enzymatic Hydrolysis. Polymers (Basel) 2023; 15:3446. [PMID: 37631504 PMCID: PMC10458172 DOI: 10.3390/polym15163446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/11/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023] Open
Abstract
Due to environmental concerns, as well as its exceptional physical and mechanical capabilities, biodegradability, and optical and barrier qualities, nanocellulose has drawn a lot of interest as a source of reinforcing materials that are nanometer sized. This article focuses on how to manufacture cellulose nanomaterials from cotton by using different types of acids such as H2SO4 and HCI in different concentrations and in the presence of enzymes such as cellulase and xylanase. Two different types of bleaching methods were used before acid and enzyme hydrolysis. In the first method, cellulose was extracted by bleaching the cotton with H2O2. In the second method, NaOCl was utilized. For both methods, different concentrations of acids and enzymes were used to isolate nanocellulose materials, cellulose nanocrystals (CNC), and cellulose nanofibrils (CNF) at different temperatures. All obtained nanocellulose materials were analyzed through different techniques such as FT-IR, Zeta potentials, DLS, Raman spectroscopy, TGA, DSC, XRD, and SEM. The characteristic signals related to cellulose nanocrystals (CNC) were confirmed with the aid of Raman and FT-IR spectroscopy. According to the XRD results, the samples' crystallinity percentages range from 54.1% to 63.2%. The SEM image showed that long fibers break down into small fibers and needle-like features are seen on the surface of the fibers. Using different types of bleaching has no significant effect on the thermal stability of samples. The results demonstrate a successful method for synthesizing cellulose nanofibrils (CNF) from cotton through enzymatic hydrolysis, but the results also demonstrated that the choice of bleaching method has a significant impact on the hydrodynamic properties and crystallinity of both CNC and CNF samples.
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Affiliation(s)
- Faik Bolat
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania; (F.B.); (J.G.); (M.I.N.)
| | - Jana Ghitman
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania; (F.B.); (J.G.); (M.I.N.)
| | - Madalina Ioana Necolau
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania; (F.B.); (J.G.); (M.I.N.)
| | - Eugeniu Vasile
- Department of Oxide Materials Science and Engineering, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu, 060042 Bucharest, Romania;
| | - Horia Iovu
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania; (F.B.); (J.G.); (M.I.N.)
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
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Moing A, Berton T, Roch L, Diarrassouba S, Bernillon S, Arrivault S, Deborde C, Maucourt M, Cabasson C, Bénard C, Prigent S, Jacob D, Gibon Y, Lemaire-Chamley M. Multi-omics quantitative data of tomato fruit unveils regulation modes of least variable metabolites. BMC PLANT BIOLOGY 2023; 23:365. [PMID: 37479985 PMCID: PMC10362748 DOI: 10.1186/s12870-023-04370-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/11/2023] [Indexed: 07/23/2023]
Abstract
BACKGROUND The composition of ripe fruits depends on various metabolites which content evolves greatly throughout fruit development and may be influenced by the environment. The corresponding metabolism regulations have been widely described in tomato during fruit growth and ripening. However, the regulation of other metabolites that do not show large changes in content have scarcely been studied. RESULTS We analysed the metabolites of tomato fruits collected on different trusses during fruit development, using complementary analytical strategies. We identified the 22 least variable metabolites, based on their coefficients of variation. We first verified that they had a limited functional link with the least variable proteins and transcripts. We then posited that metabolite contents could be stabilized through complex regulations and combined their data with the quantitative proteome or transcriptome data, using sparse partial-least-square analyses. This showed shared regulations between several metabolites, which interestingly remained linked to early fruit development. We also examined regulations in specific metabolites using correlations with individual proteins and transcripts, which revealed that a stable metabolite does not always correlate with proteins and transcripts of its known related pathways. CONCLUSIONS The regulation of the least variable metabolites was then interpreted regarding their roles as hubs in metabolic pathways or as signalling molecules.
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Affiliation(s)
- Annick Moing
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Thierry Berton
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Léa Roch
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Salimata Diarrassouba
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Present Address: Laboratoire de Recherche en Sciences Végétales, UMR 5546 UPS/CNRS, Auzeville- Tolosane, F-31320 France
| | - Stéphane Bernillon
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Present Address: INRAE, Mycologie et Sécurité des Aliments, UR 1264, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Stéphanie Arrivault
- Max Planck Institute of Molecular Plant Physiology, am Muehlenberg 14476, Potsdam-Golm, Germany
| | - Catherine Deborde
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Present Address: INRAE, UR1268 BIA, Centre INRAE Pays de Loire – Nantes, Nantes, F-44000 France
- Present address: INRAE, BIBS Facility, Centre INRAE Pays de Loire – Nantes, Nantes, F-44000 France
| | - Mickaël Maucourt
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Cécile Cabasson
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Camille Bénard
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Sylvain Prigent
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Daniel Jacob
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Yves Gibon
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
| | - Martine Lemaire-Chamley
- INRAE, Univ. Bordeaux, Biologie du Fruit et Pathologie, UMR 1332, Centre INRAE de Nouvelle Aquitaine Bordeaux, Villenave d’Ornon, F-33140 France
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Kalitukha L, Bleha R, Synytsya A, Kraska J, Sari M. Hydrocolloids from the Mushroom Auricularia heimuer: Composition and Properties. J Fungi (Basel) 2023; 9:681. [PMID: 37367617 DOI: 10.3390/jof9060681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/28/2023] Open
Abstract
The ear- to shell-shaped fruiting bodies of the genus Auricularia are widely used as food and in traditional medicinal remedies. This study was primarily focused on the composition, properties and potential use of the gel-forming extract from Auricularia heimuer. The dried extract contained 50% soluble homo- and heteropolysaccharides, which were mainly composed of mannose and glucose, acetyl residues, glucuronic acid and a small amount of xylose, galactose, glucosamine, fucose, arabinose and rhamnose. The minerals observed in the extract included approximately 70% potassium followed by calcium. Among the fatty and amino acids, 60% unsaturated fatty acids and 35% essential amino acids could be calculated. At both acidic (pH 4) and alkaline (pH 10) conditions, the thickness of the 5 mg/mL extract did not change in a temperature range from -24 °C to room temperature, but decreased statistically significantly after storage at elevated temperature. At neutral pH, the studied extract demonstrated good thermal and storage stability, as well as a moisture retention capacity comparable to the high molecular weight sodium hyaluronate, a well-known moisturizer. Hydrocolloids that can be sustainably produced from Auricularia fruiting bodies offer great application potential in the food and cosmetic industries.
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Affiliation(s)
| | - Roman Bleha
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Andriy Synytsya
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Janina Kraska
- Competence Center for Applied Mycology and Environmental Studies, Niederrhein University of Applied Sciences, 41065 Moenchengladbach, Germany
| | - Miriam Sari
- Competence Center for Applied Mycology and Environmental Studies, Niederrhein University of Applied Sciences, 41065 Moenchengladbach, Germany
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Farber C, Shires M, Ueckert J, Ong K, Kurouski D. Detection and differentiation of herbicide stresses in roses by Raman spectroscopy. FRONTIERS IN PLANT SCIENCE 2023; 14:1121012. [PMID: 37342141 PMCID: PMC10277736 DOI: 10.3389/fpls.2023.1121012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 05/18/2023] [Indexed: 06/22/2023]
Abstract
Herbicide application is a critical component of modern horticulture. Misuse of herbicides can result in damage to economically important plants. Currently, such damage can be detected only at symptomatic stages by subjective visual inspection of plants, which requires substantial biological expertise. In this study, we investigated the potential of Raman spectroscopy (RS), a modern analytical technique that allows sensing of plant health, for pre-symptomatic diagnostics of herbicide stresses. Using roses as a model plant system, we investigated the extent to which stresses caused by Roundup (Glyphosate) and Weed-B-Gon (2, 4-D, Dicamba and Mecoprop-p (WBG), two of the most commonly used herbicides world-wide, can be diagnosed at pre- and symptomatic stages. We found that spectroscopic analysis of rose leaves enables ~90% accurate detection of Roundup- and WBG-induced stresses one day after application of these herbicides on plants. Our results also show that the accuracy of diagnostics of both herbicides at seven days reaches 100%. Furthermore, we show that RS enables highly accurate differentiation between the stresses induced by Roundup- and WBG. We infer that this sensitivity and specificity arises from the differences in biochemical changes in plants that are induced by both herbicides. These findings suggest that RS can be used for a non-destructive surveillance of plant health to detect and identify herbicide-induced stresses in plants.
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Affiliation(s)
- Charles Farber
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, United States
| | - Madalyn Shires
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
| | - Jake Ueckert
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
| | - Kevin Ong
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, United States
- Department of Molecular and Environmental Plant Science, Texas A&M University, College Station, TX, United States
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32
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Oraç A, Konak Göktepe Ç, Demirci T, Akın N. Biodegradable Edible Film Based on Basil Seed Gum: The Effect of Gum and Plasticizer Concentrations. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2023. [DOI: 10.1007/s10924-023-02923-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/12/2023] [Indexed: 09/01/2023]
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33
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Higgins S, Joshi R, Juarez I, Bennett JS, Holman AP, Kolomiets M, Kurouski D. Non-invasive identification of combined salinity stress and stalk rot disease caused by Colletotrichum graminicola in maize using Raman spectroscopy. Sci Rep 2023; 13:7661. [PMID: 37169839 PMCID: PMC10175297 DOI: 10.1038/s41598-023-34937-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 05/10/2023] [Indexed: 05/13/2023] Open
Abstract
Food security is an emerging problem that is faced by our civilization. There are millions of people around the world suffering from various kinds of malnutrition. The number of people that starve will only increase considering the continuous growth of the world's population. The problem of food security can be addressed by timely detection and identification biotic and abiotic stresses in plants that drastically reduce the crop yield. A growing body of evidence suggests that Raman spectroscopy (RS), an emerging analytical technique, can be used for the confirmatory and non-invasive diagnostics of plant stresses. However, it remains unclear whether RS can efficiently disentangle biotic and abiotic stresses, as well as detect both of them simultaneously in plants. In this work, we modeled a stalk rot disease in corn by inoculating the plant stalks with Colletotrichum graminicola. In parallel, we subjected plants to salt stress, as well as challenging plants with both stalk rot disease and salinity stress simultaneously. After the stresses were introduced, Raman spectra were collected from the stalks to reveal stress-specific changes in the plant biochemistry. We found that RS was able to differentiate between stalk rot disease and salinity stresses with 100% accuracy, as well as predict presence of both of those stresses in plants on early and late stages. These results demonstrate that RS is a robust and reliable approach that can be used for confirmatory, non-destructive and label-free diagnostics of biotic and abiotic stresses in plants.
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Affiliation(s)
- Samantha Higgins
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Ritu Joshi
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Isaac Juarez
- Department of Toxicology, Texas A&M University, College Station, TX, 77843, USA
| | - John S Bennett
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Aidan P Holman
- Department of Entomology, Texas A&M University, College Station, TX, 77843, USA
| | - Michael Kolomiets
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA.
| | - Dmitry Kurouski
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA.
- Department of Toxicology, Texas A&M University, College Station, TX, 77843, USA.
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA.
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34
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Silva DJS, Santos JAV, Pinto JCN, Llorent-Martínez EJ, Castilho PC, Batista de Carvalho LAE, Marques MPM, Barroca MJ, Moreira da Silva A, da Costa RMF. Spectrochemical analysis of seasonal and sexual variation of antioxidants in Corema album (L.) D. Don leaf extracts. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122816. [PMID: 37192576 DOI: 10.1016/j.saa.2023.122816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/21/2023] [Accepted: 05/01/2023] [Indexed: 05/18/2023]
Abstract
Bioactive phytoconstituents have been increasingly investigated for their potential human health benefits. Corema album (L.) D. Don, an Ericaceae, reportedly has antioxidant, antimicrobial and anticancer properties. Aiming at enhancing its nutraceutical potential, we performed a spectrochemical analysis of hydroethanolic extracts from C. album leaves. We report on changes in the antioxidant activity of the extracts, as well as in the accumulation of key phytoconstituents (namely phenolic compounds), in female and male samples, throughout three harvesting seasons (February, July, and October). For each extract, the antioxidant activity was assessed by different spectrophotometric methods. Simultaneously, attenuated total reflectance Fourier transform mid-infrared spectroscopy (FTIR-ATR), and high-performance liquid chromatography - electrospray ionisation - quadrupole time-of-flight mass spectrometry (HPLC-ESI-Q-TOF-MS), were used to identify and monitor variations in the composition of phenolic compounds in the extracts. The main compounds identified were epicatechin, laricitrin-O-hexoside isomers, and myricetin-O-hexoside isomers. Significant differences were found in the composition and relative abundance of the compounds of interest, according to sex and season. Overall, a trend was observed whereby phenolic content and antioxidant activities were higher in males and increased between the earlier and the latest harvests. Based on these results, we may conclude that late summer or early autumn harvests are preferable when aiming at the highest yearly content of bioactive compounds. Additionally, it should be considered that extracts from male individuals typically display higher antioxidant activities. Ultimately, our understanding of C. album in the context of nutraceutical applications is benefited from the quantitative and qualitative portrait provided here, thus promoting its relevance as a source of bioactive compounds.
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Affiliation(s)
- Daniela J S Silva
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - João A V Santos
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Joana C N Pinto
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Eulogio J Llorent-Martínez
- Department of Physical and Analytical Chemistry, Faculty of Experimental Sciences, University of Jaén, Campus Las Lagunillas, E-23071 Jaén, Spain
| | - Paula C Castilho
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Luís A E Batista de Carvalho
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Maria Paula M Marques
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Maria João Barroca
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; Polytechnic Institute of Coimbra, Coimbra Agriculture School, 3045-601 Coimbra, Portugal
| | - Aida Moreira da Silva
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; Polytechnic Institute of Coimbra, Coimbra Agriculture School, 3045-601 Coimbra, Portugal
| | - Ricardo M F da Costa
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
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Oraç A, Göktepe ÇK, Demirci T, Akin N. Biodegradable edible film based on basil seed gum: the effect of gum and plasticizer concentrations.. [DOI: 10.21203/rs.3.rs-2626369/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abstract
In this research, edible films produced from basil seed gum (BSG) with 3 different gum (0.5%, 1%, 1.5%) and plasticizer concentrations (1%, 3%, 5%) were developed, and the physical, thermal, barrier and microstructural properties of these films were measured. As a result of XRD, AFM, DSC, and FT-IR spectroscopy analyses, it was concluded that the mechanical and barrier properties and thermal stability of BSG-based films are quite good. The increase in gum and glycerol concentrations increased the crystallinity also strengthened the mechanical and barrier properties of the film. Also, films with low gum and high glycerol ratio have almost smooth surfaces and appropriate transparency for packaging applications. As the glycerol and BSG concentration increased, WVP values of the films increased. The complete dissolution of this film in the soil within 60 days, even at the highest gum concentration, showed that this material could be considered eco-friendly packaging. For this reason, it is thought that BSG-based films and coatings with suitable gum and plasticizer concentrations can be a potential packaging material for foods since they can be obtained at low cost, have a very good barrier, thermal and structural properties, and are edible and biodegradable.
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SEN A, Kecoglu I, Ahmed M, Parlatan U, Unlu MB. Differentiation of advanced generation mutant wheat lines: Conventional techniques versus Raman spectroscopy. FRONTIERS IN PLANT SCIENCE 2023; 14:1116876. [PMID: 36909443 PMCID: PMC9997642 DOI: 10.3389/fpls.2023.1116876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
This research aimed to assess the feasibility of utilizing Raman spectroscopy in plant breeding programs. For this purpose, the evaluation of the mutant populations set up the application of 4 mM NaN3 to the somatic embryos obtained from mature wheat (Triticum aestivum L. Adana-99 cv.) embryos. Advanced wheat mutant lines, which were brought up to the seventh generation with salt stress tolerance by following in vitro and in vivo environments constructed by mutated populations, were evaluated using conventional techniques [measurement of antioxidant enzyme activities (SOD, CAT, and POX), total chlorophyll, TBARS, and proline contents; measurement of the concentration of Na+ and K+ ions; and evaluation of gene expression by qPCR (TaHKT2;1, TaHKT1;5, TaSOS1, TaNa+/H+ vacuolar antiporter, TaV-PPase, TaV-ATPase, and TaP5CS)] and Raman spectroscopy. In this research, no significant difference was found in the increase of SOD, CAT, and POX antioxidant enzyme activities between the salt-treated and untreated experimental groups of the commercial cultivar, while there was a statistically significant increase in salt-treated advanced generation mutant lines as compared to control and the salt-treated commercial cultivar. Proline showed a statistically significant increase in all experimental groups compared to the untreated commercial cultivar. The degradation in the amount of chlorophyll was lower in the salt-treated advanced generation mutant lines than in the salt-treated commercial cultivar. According to gene expression studies, there were statistical differences at various levels in terms of Na+ and/or K+ uptake from soil to plant (TaHKT2;1, TaHKT1;5, and TaSOS1), and Na+ compartmentalizes into the cell vacuole (TaNa+/H+ vacuolar antiporter, Ta vacuolar pyrophosphatase, and Ta vacuolar H+-ATPase). The expression activity of TaP5CS, which is responsible for the transcription of proline, is similar to the content of proline in the current study. As a result of Raman spectroscopy, the differences in peaks represent the protein-related bands in mutant lines having a general decreasing trend in intensity when compared to the commercial cultivar. Amide-I (1,630 and 1,668 cm-1), Histidine, Lysine, Arginine, and Leucine bands (823, 849, 1,241, 1,443, and 1,582 cm-1) showed decreasing wavenumbers. Beta-carotene peaks at 1,153 and 1,519 cm-1 showed increasing trends when the normalized Raman intensities of the mutant lines were compared.
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Affiliation(s)
- Ayse SEN
- Department of Biology, Faculty of Science, Istanbul University, Istanbul, Türkiye
| | - Ibrahim Kecoglu
- Department of Physics, Bogazici University, Istanbul, Türkiye
| | - Muhammad Ahmed
- Graduate School of Engineering and Science, Istanbul University, Istanbul, Türkiye
| | - Ugur Parlatan
- Department of Physics, Bogazici University, Istanbul, Türkiye
| | - Mehmet Burcin Unlu
- Department of Physics, Bogazici University, Istanbul, Türkiye
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, Japan
- Global Center for Biomedical Science and Engineering Quantum Medical Science and Engineering (GI-CoRE Cooperating Hub), Faculty of Medicine, Hokkaido University, Sapporo, Japan
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Yuan X, Gao X, Zheng T, Wang J, Dong Y, Xue H. Carbon nanomaterial-treated cell cultures of Nostoc flagelliforme produce exopolysaccharides with ameliorative physio-chemical properties. Int J Biol Macromol 2023; 227:726-735. [PMID: 36565826 DOI: 10.1016/j.ijbiomac.2022.12.209] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/15/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
The feasibility and efficiency of carbon nanomaterials (CNMs) in algal biotechnology are less known. In this study, the influences of four CNMs, graphene (G), graphene oxide (GO), multiwalled carbon nanotube (MWCNT), and aminated multiwalled carbon nanotube (MWCNT-NH2), on cell growth and exopolysaccharide (EPS) production, as well as the physiochemical properties of EPS, were investigated in cell culture of Nostoc flagelliforme. A proper concentration (15 mg L-1) of four CNMs was chosen for use after a preliminary test. Upon GO treatment, the biomass was improved by 11.1 % and the EPS production was increased by 36.1 % on day 16 compared to the nontreated control. Four CNM treatments significantly improved cellular O2·- and H2O2 levels as well as superoxide dismutase and catalase activities. The monosaccharide compositions and functional groups of the EPSs were obviously altered by the CNM treatments. Particularly, the GO treatment-resulting EPS showed obviously improved flocculating ability, water absorption ability, and reactive oxygen species scavenging ability. In general, four CNMs exerted distinct influences on the production and physio-chemical property alteration of the EPS in N. flagelliforme culture. This work expands our understanding of the application of CNMs in the induced production and functional modification of polysaccharides during algal cultivation.
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Affiliation(s)
- Xiaolong Yuan
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Xiang Gao
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China.
| | - Tao Zheng
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Jing Wang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Yibei Dong
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
| | - Huidan Xue
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi Province, China
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Nakajima S, Kuroki S, Ikehata A. Selective detection of starch in banana fruit with Raman spectroscopy. Food Chem 2023; 401:134166. [DOI: 10.1016/j.foodchem.2022.134166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 12/01/2022]
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Both AK, Choudhry D, Cheung CL. Valorization of hemp fibers into biocomposites via one‐step pectin‐based green fabrication process. J Appl Polym Sci 2023. [DOI: 10.1002/app.53586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Avinash Kumar Both
- Department of Chemistry University of Nebraska‐Lincoln Lincoln Nebraska USA
| | - Deepa Choudhry
- Department of Chemistry University of Nebraska‐Lincoln Lincoln Nebraska USA
| | - Chin Li Cheung
- Department of Chemistry University of Nebraska‐Lincoln Lincoln Nebraska USA
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González Moreno A, Domínguez E, Mayer K, Xiao N, Bock P, Heredia A, Gierlinger N. 3D (x-y-t) Raman imaging of tomato fruit cuticle: Microchemistry during development. PLANT PHYSIOLOGY 2023; 191:219-232. [PMID: 35972400 PMCID: PMC9806558 DOI: 10.1093/plphys/kiac369] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/15/2022] [Indexed: 05/20/2023]
Abstract
The cuticle is a protective extracellular matrix that covers the above-ground epidermis of land plants. Here, we studied the cuticle of tomato (Solanum lycopersicum L.) fruits in situ using confocal Raman microscopy. Microsections from cuticles isolated at different developmental stages were scanned to visualize cuticle components with a spatial resolution of 342 nm by univariate and multivariate data analysis. Three main components, cutin, polysaccharides, and aromatics, were identified, with the latter exhibiting the strongest Raman scattering intensity. Phenolic acids and flavonoids were differentiated within the cuticle, and three schematic cuticle models were identified during development. Phenolic acids were found across the entire cuticle at the earliest stage of development, i.e. during the formation of the procuticle layer. Based on a mixture analysis with reference component spectra, the phenolic acids were identified as mainly esterified p-coumaric acid together with free p-hydroxybenzoic acid. During the cell expansion period of growth, phenolic acids accumulated in an outermost layer of the cuticle and in the middle region of the pegs. In these stages of development, cellulose and pectin were detected next to the inner cuticle region, close to the epidermal cell where flavonoid impregnation started during ripening. In the first ripening stage, chalconaringenin was observed, while methoxylated chalcones were chosen by the algorithm to fit the mature cuticle spectra. The colocation of carbohydrates, esterified p-coumaric acid, and methoxylated chalconaringenin suggests that the latter two link polysaccharide and cutin domains. Elucidating the different distribution of aromatics within the cuticle, suggests important functions: (1) overall impregnation conferring mechanical and thermal functions (2) the outermost phenolic acid layer displaying UV-B protection of the plant tissue.
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Affiliation(s)
| | - Eva Domínguez
- IHSM-UMA-CSIC La Mayora, Plant breeding and Biotechnology, CSIC, 29750 Algarrobo-Costa, Málaga, Spain
| | - Konrad Mayer
- Department of Nanobiotechnology, BOKU-University of Natural Resources and Life Science, Vienna, Muthgasse 11, 1190 Vienna, Austria
| | - Nannan Xiao
- Department of Nanobiotechnology, BOKU-University of Natural Resources and Life Science, Vienna, Muthgasse 11, 1190 Vienna, Austria
| | - Peter Bock
- Department of Nanobiotechnology, BOKU-University of Natural Resources and Life Science, Vienna, Muthgasse 11, 1190 Vienna, Austria
| | - Antonio Heredia
- IHSM-UMA-CSIC La Mayora, Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, 29071, Málaga, Spain
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41
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Liu ST, Wang S, Han N, Li MY, Li J, Li YR, Jia SR, Han PP. Effects of H2O2 acclimation on the growth, polysaccharide production and tolerance performance of Nostoc flagelliforme. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.102968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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42
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Zavafer A, Ball MC. Good vibrations: Raman spectroscopy enables insights into plant biochemical composition. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:1-16. [PMID: 36592984 DOI: 10.1071/fp21335] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 09/20/2022] [Indexed: 06/17/2023]
Abstract
Non-invasive techniques are needed to enable an integrated understanding of plant metabolic responses to environmental stresses. Raman spectroscopy is one such technique, allowing non-destructive chemical characterisation of samples in situ and in vivo and resolving the chemical composition of plant material at scales from microns to metres. Here, we review Raman band assignments of pigments, structural and non-structural carbohydrates, lipids, proteins and secondary metabolites in plant material and consider opportunities this technology raises for studies in vascular plant physiology.
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Affiliation(s)
- Alonso Zavafer
- Plant Science Division, Research School of Biology, The Australian National University, Canberra, ACT 2000, Australia; and Climate Change Cluster, University of Technology Sydney, Ultimo, NSW 2001, Australia; and Present address: Department Biological Sciences and Yousef Haj-Ahmad Department of Engineering, Brock University, St. Catherines, ON, Canada
| | - Marilyn C Ball
- Plant Science Division, Research School of Biology, The Australian National University, Canberra, ACT 2000, Australia
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Potential of confocal micro-Raman spectroscopy for the nutrient profiling of kidney beans. NATIONAL ACADEMY SCIENCE LETTERS 2022. [DOI: 10.1007/s40009-022-01199-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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44
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ELISA Based Immunoreactivity Reduction of Soy Allergens through Thermal Processing. Processes (Basel) 2022. [DOI: 10.3390/pr11010093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Allergens are proteins and are, therefore, likely to be denatured when subjected to thermal treatment. Traditional cooking has so far been able to reduce allergen sensitivity by around 70–90%. This study was aimed at evaluating the effect of a broad range of thermal treatments on the reduction of soy immunoreactivity (IR) in a 5% slurry using a sandwich ELISA technique. Cooking at 100 °C (10–60 min) and different thermal processing conditions, such as in commercial sterilization (with a process lethality (Fo) between 3 and 5 min) and selected severe thermal processing conditions (Fo > 5 and up to 23 min) were used in the study to evaluate their influence on allergen IR. Based on an IR comparison with an internal soy allergen standard, the allergen concentration in the untreated soy sample was calculated to be equivalent to 333 mg/kg (ppm). Cooking conditions only reduced the IR sensitivity to about 10 mg/kg (~1.5 log reductions), while the thermal processing treatments lowered the allergen IR up to 23 × 10−3 mg/kg (or 23 ppb) (>4 log reductions). FTIR analysis indicated significant changes in protein structure resulting from the thermal processing treatments, with a higher degree of allergen reduction corresponding with a higher value of random coil percentages. The influence of process severity on color and rheological properties was, however, minimal.
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Rusinova-Videva S, Ognyanov M, Georgiev Y, Petrova A, Dimitrova P, Kambourova M. Chemical characterization and biological effect of exopolysaccharides synthesized by Antarctic yeasts Cystobasidium ongulense AL 101 and Leucosporidium yakuticum AL 102 on murine innate immune cells. World J Microbiol Biotechnol 2022; 39:39. [PMID: 36512173 DOI: 10.1007/s11274-022-03477-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 11/18/2022] [Indexed: 12/15/2022]
Abstract
The current study aimed to investigate exopolysaccharides (EPSs) produced by two Antarctic yeasts isolated from soil and penguin feathers samples collected on Livingston Island (Antarctica). The strains were identified as belonging to the species Leucosporidium yakuticum (LY) and Cystobasidium ongulense (CO) based on molecular genetic analysis. The EPS production was investigated using submerged cultivation. Different chemical, chromatographic, and spectral analyses were employed to characterize EPSs. LY accumulated 5.5 g/L biomass and 4.0 g/L EPS after 120 h of cultivation, while CO synthesized 2.1 g/L EPS at the end of cultivation, and the biomass amount reached 5.5 g/L. LY-EPS was characterized by a higher total carbohydrate content (80%) and a lower protein content (18%) by comparison with CO-EPS (62%, 30%). The LY-EPS mainly consisted of mannose (90 mol%), whereas CO-EPS had also glucose, galactose, and small amounts of uronic acids (8-5 mol%). Spectral analyses (FT-IR and 1D, 2D NMR) revealed that LY-EPS comprised a typical β-(1 → 4)-mannan. Branched (hetero)mannan, together with β/α-glucans constituted the majority of CO-EPS. Unlike LY-EPS, which had a high percentage of high molecular weight populations, CO-EPS displayed a large quantity of lower molecular weight fractions and a higher degree of heterogeneity. LY-EPS (100 ng/mL) elevated significantly interferon gamma (IFN-γ) production in splenic murine macrophages and natural killer (NK) cells. The results indicated that newly identified EPSs might affect IFN-γ signaling and in turn, might enhance anti-infectious responses. The data obtained also revealed the potential of EPSs and yeasts for practical application in biochemical engineering and biotechnology.
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Affiliation(s)
- Snezhana Rusinova-Videva
- Department of Biotechnology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria.
| | - Manol Ognyanov
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Yordan Georgiev
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Ani Petrova
- Laboratory of Biologically Active Substances, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000, Plovdiv, Bulgaria
| | - Petya Dimitrova
- Department of Immunology, Laboratory of Experimental Immunotherapy, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. Georgi Bonchev Str., 1113, Sofia, Bulgaria
| | - Margarita Kambourova
- Department of General Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. Georgi Bonchev Str., 1113, Sofia, Bulgaria
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Chen H, Liu Y, Zhang J, Jiang Y, Li D. Pectin extracted from dragon fruit Peel: An exploration as a natural emulsifier. Int J Biol Macromol 2022; 221:976-985. [PMID: 36103906 DOI: 10.1016/j.ijbiomac.2022.09.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/07/2022] [Accepted: 09/07/2022] [Indexed: 12/31/2022]
Abstract
As a potential source of pectin, the peel of dragon fruit is a by-product of fruit processing and will bring considerable economic benefits. In this study, pectin (DFP) was extracted from dragon fruit peel by using a hot-acid method, and two commercial pectins were used as controls to correlate structural differences with physical and chemical properties through systematic evaluation. The galacturonic acid (GalA) content, degree of esterification (DM) and molecular weight (Mw) of DFP were 87.02 ± 0.89 %, 37.26 ± 1.37 % and 1181.75 ± 11.21 kDa, respectively. The FTIR and XRD analysis also confirmed that DFP is ultra-low methoxylated pectin and also contains characteristic functional groups naturally present in pectin. Compared to APA140 and LMP, DFP showed excellent emulsification at low concentrations. In particular, the extraordinary antioxidant activity of DFP may be attributed to polyphenols in free or bound form. Overall, DFP can be considered as a promising emulsifier and the results of the study provide an alternative to natural sources of emulsifiers in the food industry.
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Affiliation(s)
- Hongru Chen
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian 271018, PR China
| | - Yiyan Liu
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian 271018, PR China
| | - Jingkai Zhang
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian 271018, PR China
| | - Yang Jiang
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian 271018, PR China.
| | - Dapeng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian 271018, PR China.
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A Global Picture of Molecular Changes Associated to LPS Treatment in THP-1 Derived Human Macrophages by Fourier Transform Infrared Microspectroscopy. Int J Mol Sci 2022; 23:ijms232113447. [DOI: 10.3390/ijms232113447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/27/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022] Open
Abstract
Macrophages are among the first immune cells involved in the initiation of the inflammatory response to protect the host from pathogens. THP-1 derived macrophages (TDM) are used as a model to study the pro-inflammatory effects of lipopolysaccharide (LPS) exposure. Intact TDM cells were analysed by Fourier transform infrared (FTIR) microspectroscopy, supported by multivariate analysis, to obtain a snapshot of the molecular events sparked by LPS stimulation in macrophage-like cells. This spectroscopic analysis enabled the untargeted identification of the most significant spectral components affected by the treatment, ascribable mainly to lipid, protein, and sulfated sugar bands, thus stressing the fundamental role of these classes of molecules in inflammation and in immune response. Our study, therefore, shows that FTIR microspectroscopy enabled the identification of spectroscopic markers of LPS stimulation and has the potential to become a tool to assess those global biochemical changes related to inflammatory and anti-inflammatory stimuli of synthetic and natural immunomodulators different from LPS.
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Wang X, Xu M, Xu D, Ma K, Zhang C, Wang G, Dong M, Li W. Structural and prebiotic activity analysis of the polysaccharide produced by Lactobacillus helveticus SNA12. Carbohydr Polym 2022; 296:119971. [DOI: 10.1016/j.carbpol.2022.119971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022]
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Reynoud N, Geneix N, Petit J, D’Orlando A, Fanuel M, Marion D, Rothan C, Lahaye M, Bakan B. The cutin polymer matrix undergoes a fine architectural tuning from early tomato fruit development to ripening. PLANT PHYSIOLOGY 2022; 190:1821-1840. [PMID: 36018278 PMCID: PMC9614491 DOI: 10.1093/plphys/kiac392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/21/2022] [Indexed: 05/20/2023]
Abstract
The cuticle is a complex polymer matrix that protects all aerial organs of plants, fulfills multiple roles in plant-environment interactions, and is critical for plant development. These functions are associated with the structural features of cuticles, and the architectural modeling of cuticles during plant development is crucial for understanding their physical properties and biological functions. In this work, the in-depth architecture of the cutin polymer matrix during fruit development was investigated. Using cherry tomato fruit (Solanum lycopersicum) as a model from the beginning of the cell expansion phase to the red ripe stage, we designed an experimental scheme combining sample pretreatment, Raman mapping, multivariate data analyses, and biochemical analyses. These approaches revealed clear chemical areas with different contributions of cutin, polysaccharides, and phenolics within the cutin polymer matrix. Besides, we demonstrated that these areas are finely tuned during fruit development, including compositional and macromolecular rearrangements. The specific spatiotemporal accumulation of phenolic compounds (p-coumaric acid and flavonoids) suggests that they fulfill distinct functions during fruit development. In addition, we highlighted an unexpected dynamic remodeling of the cutin-embedded polysaccharides pectin, cellulose, and hemicellulose. Such structural tuning enables consistent adaption of the cutin-polysaccharide continuum and the functional performance of the fruit cuticle at the different developmental stages. This study provides insights into the plant cuticle architecture and in particular into the organization of the epidermal cell wall-cuticle.
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Affiliation(s)
- Nicolas Reynoud
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
| | - Nathalie Geneix
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
| | - Johann Petit
- INRAE, Univ. Bordeaux, UMR BFP, F-33140, Villenave d’Ornon, France
| | - Angelina D’Orlando
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
- INRAE PROBE research infrastructure, BIBS Facility, F- 44300, Nantes, France
| | - Mathieu Fanuel
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
- INRAE PROBE research infrastructure, BIBS Facility, F- 44300, Nantes, France
| | - Didier Marion
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
| | | | - Marc Lahaye
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
| | - Bénédicte Bakan
- INRAE, Unité Biopolymères, Interactions, Assemblages, BP71627 44316, Nantes Cedex3, France
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Anjo FA, Saraiva BR, da Silva JB, Ogawa CYL, Sato F, Bruschi ML, Riegel-Vidotti IC, Simas FF, Matumoto-Pintro PT. A new food stabilizer in technological properties of low-fat processed cheese. Eur Food Res Technol 2022. [DOI: 10.1007/s00217-022-04155-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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