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Xu M, Tchinda NT, Li S, Du L. Enhanced saccharide enrichment in sea spray aerosols by coupling surface-active fatty acids. Sci Total Environ 2024; 916:170322. [PMID: 38278262 DOI: 10.1016/j.scitotenv.2024.170322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/27/2023] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
The chemical composition of aerosols plays a significant role in aerosol-cloud interactions and, although saccharides make up their largest organic mass fraction, the current process model for understanding sea spray aerosol (SSA) composition struggles to replicate the enrichment of saccharides that has been observed. Here, we simulated the generation of SSA and quantified the enrichment of two soluble saccharides (glucose and trehalose) in SSA with a homemade sea spray aerosol generator. The results of the generation experiments demonstrated that both saccharides, especially trehalose, can promote the generation of SSA, whereas surface-active fatty acids primarily inhibit SSA production due to fewer bubble bursts caused by a large amount of foam accumulation. A significant decrease in surface tension of seawater with the addition of fatty acids was observed, while only a minor decrease was observed for seawater with the addition of only saccharide. Enrichment factors (EFs) of saccharides measured using high performance anion-exchange chromatography (HPAEC) with pulsed amperometric detection (PAD) revealed no enrichment of glucose in submicron SSA, while trehalose showed a slight enrichment. In the presence of surface-active fatty acids on the seawater surface, a significant increase in the enrichment of saccharides in SSA was observed, with glucose and trehalose showing EF of approximately 27-fold and 58-fold, respectively. Besides, this enrichment was accompanied by the accumulation of calcium and magnesium ions. The results presented here suggest that the coupling interaction mechanism of soluble saccharides and surface-active fatty acids on the ocean surface contributes to the enrichment of soluble saccharides in SSA.
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Affiliation(s)
- Minglan Xu
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Narcisse Tsona Tchinda
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China
| | - Siyang Li
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation, School of Ecology and Environment, Hainan University, No. 58, Renmin Avenue, Haikou 570228, China
| | - Lin Du
- Environment Research Institute, Shandong University, Binhai Road 72, Qingdao 266237, China.
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2
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Li Y, Xing YM, Murat C, Kohler A, Zhou DY, Yu FQ, Chen J. Transcriptome and metabolome analysis reveals stage-specific metabolite accumulation during maturity of Chinese black truffle Tuber indicum. Plant Physiol Biochem 2023; 205:108158. [PMID: 37948976 DOI: 10.1016/j.plaphy.2023.108158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 10/12/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Tuber indicum is the most economically important member of Tuber, with the highest production and widest distribution in China. However, the overexploitation of immature ascocarps not only has driven wild resources of the species toward extinction, but also has caused enconomic losses and a decline in the reputation of T.indicum quality. In this study, stage-specific metabolites of T. indicum in relation to nutritional quality and the mechanism of their accumulations were explored by transcriptome and metabolome analysis at five harvest times, representing four maturation stages. A total of 663 compounds were identified in T. indicum ascocarps by a widely targeted metabolomic approach. Lipid compounds are the most prominent metabolites (18%) in our samples and also are higher accumulation at the immature stage than at mature stage, representing 30.16% differential accumulated metabolites in this stage. Levels of some of the amino acids, such as S-(methyl) glutathione, S-adenosylmethionine, which are known truffle aroma precursors, were increased at the mature stage. The gene expression level related to the biosynthesis of volatile organic compounds were verified by qPCR. This study contributes to the preliminary understanding of metabolites variations in T. indicum ascocarps during maturity for quality evaluation and truffle biology.
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Affiliation(s)
- Yang Li
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Yong-Mei Xing
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Claude Murat
- Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, INRAE Grand Est - Nancy, Champenoux, France.
| | - Annegret Kohler
- Université de Lorraine, INRAE, UMR Interactions Arbres/Microorganismes, INRAE Grand Est - Nancy, Champenoux, France.
| | - Dong-Yu Zhou
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Fu-Qiang Yu
- Key Laboratory for Fungal Diversity and Green Development, The Germplasm Bank of Wild Species, Kunming, Kunming Institute Botany, Chinese Academy of Sciences, Yunnan, China.
| | - Juan Chen
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
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Friedl JD, Jörgensen AM, Nguyen Le NM, Steinbring C, Bernkop-Schnürch A. Replacing PEG-surfactants in self-emulsifying drug delivery systems: Surfactants with polyhydroxy head groups for advanced cytosolic drug delivery. Int J Pharm 2022; 618:121633. [PMID: 35304244 DOI: 10.1016/j.ijpharm.2022.121633] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 11/23/2022]
Abstract
AIM Evaluation of different polyhydroxy surfaces in SEDDS to overcome the limitations associated with conventional polyethylene glycol (PEG)-based SEDDS surfaces for intracellular drug delivery. METHODS Anionic, cationic and non-ionic polyglycerol- (PG-) and alkylpolyglucoside- (APG-) surfactant based SEDDS were developed and compared to conventional PEG-SEDDS. Particular emphasis was placed on the impact of SEDDS surface decoration on size and zeta potential, drug loading and protective effect, mucus diffusion, SEDDS-cell interaction and intracellular delivery of the model drug curcumin. RESULTS After self-emulsification, SEDDS droplets sizes were within the range of 35-190 nm. SEDDS formulated with high amounts of long PEG-chain surfactants (>10 monomers) a charge-shielding effect was observed. Replacing PEG-surfactants with PG- and an APG-surfactant did not detrimentally affect SEDDS self-emulsification, payloads or the protection of incorporated curcumin towards oxidation. PG- and APG-SEDDS bearing multiple hydroxy functions on the surface demonstrated mucus permeation comparable to PEG-SEDDS. Steric hinderance and charge-shielding of PEG-SEDDS surface substantially reduced cellular uptake up to 50-fold and impeded endosomal escape, yielding in a 20-fold higher association of PEG-SEDDS with lysosomes. In contrast, polyhydroxy-surfaces on SEDDS promoted pronounced cellular internalisation and no lysosomal co-localisation was observed. This improved uptake resulted in an over 3-fold higher inhibition of tumor cell proliferation after cytosolic curcumin delivery. CONCLUSION The replacement of PEG-surfactants by surfactants with polyhydroxy head groups in SEDDS is a promising approach to overcome the limitations for intracellular drug delivery associated with conventional PEGylated SEDDS surfaces.
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Axelrod K, Samburova V, Khlystov AY. Relative abundance of saccharides, free amino acids, and other compounds in specific pollen species for source profiling of atmospheric aerosol. Sci Total Environ 2021; 799:149254. [PMID: 34375869 DOI: 10.1016/j.scitotenv.2021.149254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/23/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Though studies in bioaerosols are being conducted with increasing frequency over the past decade, the total breadth of knowledge on bioaerosols and their role in atmospheric processes is still minimal. In order to better characterize the chemical composition of fresh biological aerosol for purposes of source apportionment and tracing in the atmosphere, several plant pollen species were selected for detailed chemical analyses. For this purpose, different pollen species were purchased and collected around Reno, Nevada, USA, for further extraction and detailed chemical analysis. These species included aspen, corn, pecan, ragweed, eastern cottonwood, paper mulberry, rabbitbrush, bitterbrush, lodgepole pine, and Jeffrey pine. Saccharides, free amino acids, and various other polar compounds (e.g., anhydrosugars and resin acids) were quantitatively analyzed using gas chromatography and ultra-high performance liquid chromatography coupled with mass spectrometry techniques (GC-MS and UPLC-MS), with the purpose to identify differences and nuances in chemical composition of specific pollen species. The saccharides β-d-fructose, α-d-glucose, and β-d-glucose were ubiquitously found across all pollen samples (10), and sucrose was found in five samples. d-galactose was also found in pine species. Total saccharides were 4.0 to 29% of total dry weight across all samples. Total free amino acids were 0.29% to 15% of total dry weight across all samples, with the most common amino acid being proline. Chemical profiles (including both saccharides and amino acids) of surface-deposited aerosol in the Lake Tahoe area correlated most closely with pine pollen than other analyzed pollen species, indicating that chemical profiles of pollen can be used to infer its contribution to local aerosols.
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Affiliation(s)
- Kevin Axelrod
- Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, USA
| | - Vera Samburova
- Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, USA
| | - Andrey Y Khlystov
- Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, USA.
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Bordignon D, Lonetti B, Coudret C, Roblin P, Joseph P, Malaquin L, Chalard A, Fitremann J. Wet spinning of a library of carbohydrate low molecular weight gels. J Colloid Interface Sci 2021; 603:333-343. [PMID: 34197983 DOI: 10.1016/j.jcis.2021.06.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 11/27/2022]
Abstract
HYPOTHESIS Recently, a low molecular weight hydrogel based on a carbohydrate alkyl amide has been successfully used as biomaterial for neuron cell culture and for 3D printing. Varying the molecular structure should make it possible to extend the library of carbohydrate low molecular weight hydrogels available for these applications and to improve their performances. EXPERIMENTS Thirteen molecules easy to synthetize and designed to be potentially biocompatible were prepared. They are based on gluconamide, glucoheptonamide, galactonamide, glucamide, aliphatic chains and glycine. Their gelation in water was investigated in thermal conditions and wet spinning conditions, namely by dimethylsulfoxide-water exchange under injection. FINDINGS Nine molecules give hydrogels in thermal conditions. By wet spinning, six molecules self-assemble fast enough, within few seconds, to form continous hydrogel filaments. Therefore, the method enables to shape by injection these mechanically fragile hydrogels, notably in the perspective of 3D printing. Depending on the molecular structure, persistent or soluble gel filaments are obtained. The microstructures are varied, featuring entangled ribbons, platelets or particles. In thermal gelation, molecules with a symmetrical polar head (galacto, glucoheptono) give flat ribbons and molecules with an asymmetrical polar head (gluco) give helical ribbons. The introduction of an extra glycine linker disturbs this trend.
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Affiliation(s)
- Delphine Bordignon
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France.
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Christophe Coudret
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France.
| | - Pierre Roblin
- Laboratoire de Génie Chimique (LGC), Université de Toulouse, CNRS UMR 5503, Université Toulouse III - Paul Sabatier, Toulouse, France.
| | - Pierre Joseph
- LAAS-CNRS, Université de Toulouse, CNRS, UPS, Toulouse, France.
| | | | - Anaïs Chalard
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France.
| | - Juliette Fitremann
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, Toulouse, France.
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Cheewawisuttichai T, Hurst RD, Brichacek M. Transformation of aldehydes into nitriles in an aqueous medium using O-phenylhydroxylamine as the nitrogen source. Carbohydr Res 2021; 502:108282. [PMID: 33761407 DOI: 10.1016/j.carres.2021.108282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 11/16/2022]
Abstract
The conversion of an aldehyde into a nitrile can be efficiently performed using O-phenylhydroxylamine hydrochloride in buffered aqueous solutions. The reported method is specifically optimized for aqueous-soluble substrates including carbohydrates. Several reducing sugars including monosaccharides, disaccharides, and silyl-protected saccharides were transformed into cyanohydrins in high yields. The reaction conditions are also suitable for the formation of nitriles from various types of hydrophobic aldehyde substrates. Furthermore, cyanide can be eliminated from cyanohydrins, analogous to the Wohl degradation, by utilizing a readily-removed weakly basic resin as a promoter.
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Affiliation(s)
| | - Robert D Hurst
- Department of Chemistry, University of Maine, Orono, ME, USA
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Chae A, Lee G, Koh DY, Yang CM, Lee S, Kim YK. Polyacrylonitrile-based carbon nanofibers as a matrix for laser desorption/ionization time-of-flight mass spectrometric analysis of small molecules under both positive and negative ionization modes. Anal Bioanal Chem 2021; 413:1193-1202. [PMID: 33403427 DOI: 10.1007/s00216-020-03083-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/25/2020] [Accepted: 11/19/2020] [Indexed: 12/11/2022]
Abstract
Carbon fiber (CNF), prepared by carbonization of electrospun polyacrylonitrile (PAN) fibers, is systematically investigated as a mediator to replace conventional organic matrices for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-MS). CNF exhibits a high salt tolerance, sensitivity, and resolution for organic matrix-free laser desorption/ionization time-of-flight mass spectrometry (LDI-MS) analysis of various analytes under both positive and negative ionization modes. Especially, saccharides, a neutral molecule having low negative ionization efficiency, are successfully detected with CNF. Taken together, this study clearly demonstrates CNF is a promising material to develop an efficient and universal platform for LDI-MS analysis regardless of preferential ionization modes of analytes. Graphical abstract.
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Affiliation(s)
- Ari Chae
- Carbon Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea.,Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 2921, Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Gwanwon Lee
- Carbon Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea
| | - Dong-Yeun Koh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 2921, Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Cheol-Min Yang
- Carbon Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea
| | - Sungho Lee
- Carbon Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do, 55324, Republic of Korea. .,Department of Nano Material Engineering, KIST School, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
| | - Young-Kwan Kim
- Department of Chemistry, Dongguk University-Seoul, 30 Pildong-ro, Jung-gu, Seoul, 04620, Republic of Korea.
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Shimada Y, Sato K, Masaki M, Nakamura T, Tokuji Y. Quantitative assessment of the interactions between the organogermanium compound and saccharides using an NMR reporter molecule. Carbohydr Res 2020; 499:108199. [PMID: 33272559 DOI: 10.1016/j.carres.2020.108199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/16/2020] [Accepted: 11/10/2020] [Indexed: 11/18/2022]
Abstract
Poly-trans-[(2-carboxyethyl)germasesquioxane], Ge-132, is a water-soluble organogermanium compound reported to have physiological effects such as immunostimulatory and antiviral effects. The hydrolysate of Ge-132, 3-(trihydroxygermyl)propanoic acid (THGP), can interact with diols; therefore, it likely can interact with diol-containing sugars in sugar chains, glycoproteins, and glycolipids, which have important physiological functions. In this study, we quantitatively assessed the ability of THGP to interact with saccharides using nuclear magnetic resonance (NMR) spectroscopy and THGP derivatives. THGP was complexed by binding its trihydroxy group with saccharides in aqueous solutions via the cis-diol group rather than the trans-diol group. The spectra of THGP and monosaccharides indicated that THGP has a higher affinity for ketose than aldose. Moreover, the complexation ability between THGP and saccharides was influenced by the number of cis-diol groups on the saccharide structure. Thus, interactions of THGP with important biological sugars might be involved in the physiological functions of Ge-132.
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Affiliation(s)
- Yasuhiro Shimada
- Asai Germanium Research Institute Co., Ltd., Suzuranoka, Hakodate, Hokkaido 042-0958, Japan; The United Graduate School of Agricultural Science, Iwate University, Ueda, Morioka, Iwate 020-8550, Japan.
| | - Katsuyuki Sato
- Asai Germanium Research Institute Co., Ltd., Suzuranoka, Hakodate, Hokkaido 042-0958, Japan.
| | - Mika Masaki
- Asai Germanium Research Institute Co., Ltd., Suzuranoka, Hakodate, Hokkaido 042-0958, Japan.
| | - Takashi Nakamura
- Asai Germanium Research Institute Co., Ltd., Suzuranoka, Hakodate, Hokkaido 042-0958, Japan.
| | - Yoshihiko Tokuji
- The United Graduate School of Agricultural Science, Iwate University, Ueda, Morioka, Iwate 020-8550, Japan; Department of Food Science, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan.
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Wang F, Liu Q, Chen J, Li Z, Fu Y, Qin M. Enhancement of lignin removal from pre-hydrolysis liquor for saccharide recovery via horseradish peroxidase treatment in the presence of Ca 2. Int J Biol Macromol 2020; 163:1989-1994. [PMID: 32946940 DOI: 10.1016/j.ijbiomac.2020.09.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/07/2020] [Accepted: 09/13/2020] [Indexed: 10/23/2022]
Abstract
The removal of lignin is important to the recovery of saccharides from the pre-hydrolysis liquor (PHL) in kraft-based dissolved pulp production. A one-step process for lignin removal from PHL via treatment with horseradish peroxidase (HRP) in the presence of Ca2+ was proposed, and its principle was studied. The results demonstrated synergy between HRP and Ca2+ in lignin removal from PHL, whereas NH4+ had little effect on lignin removal. HRP treatment in the presence of 60 mmol/L of Ca2+ resulted in a lignin removal of 64.8% accompanied by a saccharide loss of 14.2%. HRP catalyzed both the polymerization and depolymerization of the lignin in the PHL. The HRP-catalyzed lignin polymerization rendered some lignin insoluble enabling it to be directly removed. The HRP-catalyzed depolymerization of lignin decreased its molecular weight with an evident increase in its carboxyl content. The insoluble complexes formed between the lignin with carboxyl and the Ca2+ facilitated the removal of the depolymerized lignin.
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Affiliation(s)
- Fusheng Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - Qin Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - Jiansong Chen
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - Zongquan Li
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China.
| | - Yingjuan Fu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - Menghua Qin
- Organic Chemistry Laboratory, Taishan University, Taian 271021, China
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Weng CY, Shi LZ, Wang YJ, Zheng YG. Transcriptome analysis of Actinoplanes utahensis reveals molecular signature of saccharide impact on acarbose biosynthesis. 3 Biotech 2020; 10:473. [PMID: 33088668 DOI: 10.1007/s13205-020-02466-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/03/2020] [Indexed: 01/21/2023] Open
Abstract
Different carbon sources lead to differential acarbose production in Actinoplanes. To uncover the underlying differentiation in the context of genes and pathways, we performed transcriptome sequencing of Actinoplanes utahensis ZJB-03852 grown on different saccharides, such as glucose, maltose, or the saccharide complex consisting of glucose plus maltose. The differentially expressed genes were classified into GO (gene ontology) terms and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways for functional annotations. Key enriched modules were uncovered. Our data revealed that both maltose and its complex with glucose gave improved acarbose titer. Sugar transportation, cytochrome oxidase, protein synthesis and amino acid metabolism modules were enriched under the saccharide complex condition, while ferritin metabolism gene expressions were enriched in the glucose medium. Our results provided the foundation for uncovering the mechanism of carbon source on acarbose production in A. utahensis.
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Affiliation(s)
- Chun-Yue Weng
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014 People's Republic of China
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014 People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
| | - Li-Zhen Shi
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014 People's Republic of China
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014 People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
| | - Ya-Jun Wang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014 People's Republic of China
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014 People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
| | - Yu-Guo Zheng
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, 310014 People's Republic of China
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014 People's Republic of China
- Engineering Research Center of Bioconversion and Biopurification of the Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
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Teychené J, Roux-de Balmann H, Maron L, Galier S. Interactions in saccharide/cation/water systems: Insights from density functional theory. Food Chem 2020; 327:127054. [PMID: 32460129 DOI: 10.1016/j.foodchem.2020.127054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 01/26/2023]
Abstract
Interactions between saccharides and ions in aqueous solutions are of great importance in many fields (chemistry, physico-chemistry, biology, food industries). Thus, this work proposes to develop a methodology dealing with the characterization and the understanding of interactions between saccharides and cations in presence of water molecules, by a quantum mechanics approach. In the first part, the saccharide hydration properties (xylose, glucose, sucrose) in pure water are determined. Results show that the saccharide coordination numbers, as well as the saccharides hydration enthalpy, increase with the saccharide hydrophilic group number. In the second part, the influence of cations on saccharides hydration properties, and inversely, is evaluated. In saccharide/cation/water systems, the decrease in hydration enthalpy of cations and saccharides shows that both species are dehydrated and that saccharide dehydration depends on the nature of the cation. The dehydration sequence of saccharides was explained from the study of saccharide/cation interactions.
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Sharma M, Banipal PK, Banipal TS. Hydration characteristics, structural effects and the taste quality of some polyhydroxy compounds in aqueous solutions of nicotinic acid (vitamin B3) at (288.15-318.15) K. Food Chem 2020; 310:125861. [PMID: 31767485 DOI: 10.1016/j.foodchem.2019.125861] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 10/30/2019] [Accepted: 11/03/2019] [Indexed: 10/25/2022]
Abstract
Physicochemical properties elucidating the hydration characteristics and structural effects of polyhydroxy compounds in mixed aqueous solutions offer significant information for the growth of pharmaceutical and food industries. Consequently, standard partial molar volumes and isentropic compressibilities at infinite dilution of saccharides, their derivatives and sugar alcohols in (0.01, 0.05, 0.09 and 0.13) mol kg-1 nicotinic acid(aq) (vitamin B3) solutions have been investigated by experimental density and ultrasonic velocity with respect to temperature. Their transfer values, compressibility hydration numbers, apparent massic volumes and isentropic compressibilities have also been determined. These parameters are important to study the taste behavior of polyhydroxy compounds and intermolecular interactions occurring in ternary mixtures. UV absorption spectra of the studied polyhydroxy compounds have been recorded in 1 × 10-4 mol kg-1 nicotinic acid(aq) solutions. The comparison of present results has been made with the studies reported earlier in l-ascorbic acid, thiamine HCl and pyridoxine HCl.
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Affiliation(s)
- Mousmee Sharma
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India.
| | | | - Tarlok S Banipal
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, India
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Matsuo K, Gekko K. Synchrotron-Radiation Vacuum-Ultraviolet Circular-Dichroism Spectroscopy for Characterizing the Structure of Saccharides. Adv Exp Med Biol 2018; 1104:101-17. [PMID: 30484246 DOI: 10.1007/978-981-13-2158-0_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Circular-dichroism (CD) spectroscopy is a powerful tool for analyzing the structures of chiral molecules and biomolecules. The development of CD instruments using synchrotron radiation has greatly expanded the utility of this method by extending the spectra to the vacuum-ultraviolet (VUV) region below 190 nm and thereby yielding information that is unobtainable by conventional CD instruments. This technique is especially advantageous for monitoring the structure of saccharides that contain hydroxy and acetal groups with high-energy transitions in the VUV region. Combining VUVCD spectra with theoretical calculations provides new insight into the contributions of anomeric hydroxy groups and rotational isomers of hydroxymethyl groups to the dynamics, intramolecular hydrogen bonds, and hydration of saccharides in aqueous solution.
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Yan C, Sullivan AP, Cheng Y, Zheng M, Zhang Y, Zhu T, Collett JL. Characterization of saccharides and associated usage in determining biogenic and biomass burning aerosols in atmospheric fine particulate matter in the North China Plain. Sci Total Environ 2019; 650:2939-2950. [PMID: 30373070 DOI: 10.1016/j.scitotenv.2018.09.325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 09/05/2018] [Accepted: 09/25/2018] [Indexed: 06/08/2023]
Abstract
Although biogenic aerosols play important roles in atmospheric processes and climate change, their contributions to atmospheric particulate matter mass have not received much attention, partly due to the difficulty in identifying key aerosol components and due to the often dominant role of anthropogenic emissions. In order to estimate contributions of biogenic and biomass burning organic aerosols to atmospheric particles, fine particulate matter (PM2.5) samples were collected simultaneously at an urban and a rural site in the North China Plain (NCP), a region with extensive anthropogenic emissions, during summer 2014. Saccharides, including anhydrosugars, monosaccharides, and sugar alcohols, were quantified. Profiles of saccharides in PM2.5 collected at urban and rural sites during the daytime and nighttime, nearby biomass burning, and without significant influence of biomass burning were investigated and compared. Contributions of biomass burning, biogenic aerosol associated with primary biological aerosol particles, and isoprene-derived secondary organic carbon (SOC) to total organic carbon were then estimated based on source-specific saccharide tracers. The results showed that concentrations of nearly all saccharides were higher at the rural site than at the urban site. Levoglucosan was the most abundant saccharide, followed by glycerol and glucose. Mass concentrations of source specific tracers and associated source contribution estimates indicated that the absolute and relative contributions of biomass burning were both much higher compared to fungal spore derived OC and isoprene SOC, with greater contributions observed at the rural site especially during nighttime. Our findings reveal that biogenic and biomass burning sources are non-negligible summertime contributors to atmospheric PM2.5 OC mass both at the rural site (up to 50%) and at the urban site (~20%) in the NCP.
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Affiliation(s)
- Caiqing Yan
- SKL-ESPC and BIC-ESAT, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Amy P Sullivan
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA
| | - Yuan Cheng
- School of Environment, Harbin Institute of Technology, Harbin 150001, China
| | - Mei Zheng
- SKL-ESPC and BIC-ESAT, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
| | - Yuanhang Zhang
- SKL-ESPC and BIC-ESAT, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Tong Zhu
- SKL-ESPC and BIC-ESAT, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Jeffrey L Collett
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA
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15
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Malakootikhah J, Rezayan AH, Negahdari B, Nasseri S, Rastegar H. Porous MnFe 2O 4@SiO 2 magnetic glycopolymer: A multivalent nanostructure for efficient removal of bacteria from aqueous solution. Ecotoxicol Environ Saf 2018; 166:277-284. [PMID: 30273851 DOI: 10.1016/j.ecoenv.2018.09.086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 09/12/2018] [Accepted: 09/20/2018] [Indexed: 06/08/2023]
Abstract
The focuses of this research is to prepare an efficient magnetic glycopolymer for bacteria removal from aqueous solution. To perform this idea; porous MnFe2O4@SiO2 was functionalized with glucose and or maltose as an anchors to adhere onto bacteria cell surface. Aminopropyltriethoxysilane was employed to link the saccharides on magnetic nanoparticle surface. The hybrid materials were characterized with XRD, VSM, FT-IR, FESEM, TEM, zeta potential measurement and elemental mapping. Microscopic image showed that MnFe2O4 is in cluster form composed from tiny nanoparticles. After saccharide functionalization hybrid composite generate hyper-crosslinked porous structure as a result of polysilicate formation due to hydrolysis of silica source. Escherichia coli and bacillus subtilis were selected as sample pathogens to evaluate the bacteria capturing ability of the magnetic glycopolymer. At the optimum conditions (pH = 6, time of 20 min, dosage of 15 mg) removal efficiency was more than 99% using both saccharide.
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Affiliation(s)
- Javad Malakootikhah
- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran
| | - Ali Hossein Rezayan
- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran.
| | - Babak Negahdari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Simin Nasseri
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Rastegar
- Cosmetic Products Research Center, Iran Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran
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Mehde AA, Mehdi WA, Özacar M, Özacar ZZ. Evaluation of different saccharides and chitin as eco-friendly additive to improve the magnetic cross-linked enzyme aggregates (CLEAs) activities. Int J Biol Macromol 2018; 118:2040-2050. [PMID: 30009910 DOI: 10.1016/j.ijbiomac.2018.07.075] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 07/04/2018] [Accepted: 07/12/2018] [Indexed: 11/16/2022]
Abstract
The cross-linked enzyme aggregates (CLEAs) involves formation of a number of covalent bonds between enzyme and the matrix using glutaraldehyde. In general, amino groups of lysine, sulfhydryl groups of cysteine, phenolic OH groups of tyrosine, or imidazol group of histidine are used for enzyme binding under mild conditions. The main advantage of this method is its simplicity, economic advantages in the industrial bio catalysis. The Fe3O4 magnetic nanoparticles were synthesized by coprecipitating Fe2+and Fe3+in alkaline solution. Tannic acid was used to functionalize the Fe3O4 magnetic nanoparticles. After functionalization process, tannic acid magnetic cross-linked enzyme aggregates of enzyme (TA-MNPs-CLEAs) were prepared by cross-linking of enzyme aggregates with different saccharides as additive. The present result reported high stability, simplicity, low cost and recyclability of a saccharide-TA-MNPs-CLEAs-enzyme make it efficient as a highly active biocatalyst in biotechnological applications. The obtained results suggest that disaccharides (maltose, sucrose and lactose) and polysaccharide such as starch are eco-friendly additives to TA-MNPs-lipase and TA-MNPs-CLEAs-peroxidase and can become a powerful biocatalyst in industry applications.
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Affiliation(s)
- Atheer Awad Mehde
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application and Research Center (BIMAS-RC), 54187, Sakarya, Turkey
| | - Wesen Adel Mehdi
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application and Research Center (BIMAS-RC), 54187, Sakarya, Turkey.
| | - Mahmut Özacar
- Sakarya University, Biomedical, Magnetic and Semiconductor Materials Application and Research Center (BIMAS-RC), 54187, Sakarya, Turkey; Sakarya University, Science & Arts Faculty, Department of Chemistry, 54187, Sakarya, Turkey
| | - Zeynep Ziyade Özacar
- Sakarya University, Engineering Faculty, Department of Food Engineering, 54187, Sakarya, Turkey
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Takeuchi T, Plasseraud L, Ziegler-Devin I, Brosse N, Shinzato C, Satoh N, Marin F. Biochemical characterization of the skeletal matrix of the massive coral, Porites australiensis - The saccharide moieties and their localization. J Struct Biol 2018; 203:219-229. [PMID: 29859330 DOI: 10.1016/j.jsb.2018.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 02/01/2023]
Abstract
To construct calcium carbonate skeletons of sophisticated architecture, scleractinian corals secrete an extracellular skeletal organic matrix (SOM) from aboral ectodermal cells. The SOM, which is composed of proteins, saccharides, and lipids, performs functions critical for skeleton formation. Even though polysaccharides constitute the major component of the SOM, its contribution to coral skeleton formation is poorly understood. To this end, we analyzed the SOM of the massive colonial coral, Porites australiensis, the skeleton of which has drawn great research interest because it records environmental conditions throughout the life of the colony. The coral skeleton was extensively cleaned, decalcified with acetic acid, and organic fractions were separated based on solubility. These fractions were analyzed using various techniques, including SDS-PAGE, FT-IR, in vitro crystallization, CHNS analysis, chromatography analysis of monosaccharide and enzyme-linked lectin assay (ELLA). We confirmed the acidic nature of SOM and the presence of sulphate, which is thought to initiate CaCO3 crystallization. In order to analyze glycan structures, we performed ELLA on the soluble SOM for the first time and found that it exhibits strong specificity to Datura stramonium lectin (DSL). Furthermore, using biotinylated DSL with anti-biotin antibody conjugated to nanogold, in situ localization of DSL-binding polysaccharides in the P. australiensis skeleton was performed. Signals were distributed on the surfaces of fiber-like crystals of the skeleton, suggesting that polysaccharides may modulate crystal shape. Our study emphasizes the importance of sugar moieties in biomineralization of scleractinian corals.
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Affiliation(s)
- Takeshi Takeuchi
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
| | - Laurent Plasseraud
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Faculté des Sciences Mirande, Université de Bourgogne - Franche-Comté (UBFC), Dijon, France
| | - Isabelle Ziegler-Devin
- LERMAB, Faculté des Sciences & Technologies -Campus Aiguillettes, Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Nicolas Brosse
- LERMAB, Faculté des Sciences & Technologies -Campus Aiguillettes, Université de Lorraine, Vandœuvre-Lès-Nancy, France
| | - Chuya Shinzato
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan; Department of Marine Bioscience Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha, Kashiwa-shi, Chiba 277-8564, Japan
| | - Noriyuki Satoh
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan
| | - Frédéric Marin
- UMR CNRS 6282 Biogéosciences, Bâtiment des Sciences Gabriel, Université de Bourgogne - Franche-Comté (UBFC), Dijon, France
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18
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Gao X, Sun C, Yu Z, Cang J, Tian X, Huo X, Feng L, Liu X, Wang C, Zhang B, Ma X. Correlation analysis between the chemical contents and bioactivity for the quality control of Alismatis Rhizoma. Acta Pharm Sin B 2018; 8:242-51. [PMID: 29719785 DOI: 10.1016/j.apsb.2017.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 07/28/2017] [Accepted: 08/07/2017] [Indexed: 11/22/2022] Open
Abstract
In order to clarify regions of production and to discriminate processing methods, quantitative and qualitative analyses for saccharides and terpenes in 35 batches of Alismatis Rhizoma were performed. Methodologies included HPLC—PDA, HPLC—VWD and UHPLC—MSn, combined with principal component analysis (PCA) and partial least squares regression techniques (PLSR). The inhibitory effects of triterpenes and Alismatis Rhizoma extracts on lipase activity were evaluated in vitro. PLSR analysis revealed significant positive correlations (R2 = 0.5795) between the contents of triterpenes 10, 14, 15, 18 and 22 and the inhibitory effects of Alismatis Rhizoma. The present study establishes an effective method for simultaneous determination of multiple components, and identifies key bioactive triterpenes. These results can be used for systematic and novel analytical strategies for the quality control of Alismatis Rhizoma production.
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Fitremann J, Lonetti B, Fratini E, Fabing I, Payré B, Boulé C, Loubinoux I, Vaysse L, Oriol L. A shear-induced network of aligned wormlike micelles in a sugar-based molecular gel. From gelation to biocompatibility assays. J Colloid Interface Sci 2017. [PMID: 28622565 DOI: 10.1016/j.jcis.2017.06.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new low molecular weight hydrogelator with a saccharide (lactobionic) polar head linked by azide-alkyne click chemistry was prepared in three steps. It was obtained in high purity without chromatography, by phase separation and ultrafiltration of the aqueous gel. Gelation was not obtained reproducibly by conventional heating-cooling cycles and instead was obtained by shearing the aqueous solutions, from 2 wt% to 0.25 wt%. This method of preparation favored the formation of a quite unusual network of interconnected large but thin 2D-sheets (7nm-thick) formed by the association side-by-side of long and aligned 7nm diameter wormlike micelles. It was responsible for the reproducible gelation at the macroscopic scale. A second network made of helical fibres with a 10-13nm diameter, more or less intertwined was also formed but was scarcely able to sustain a macroscopic gel on its own. The gels were analysed by TEM (Transmission Electronic Microscopy), cryo-TEM and SAXS (Small Angle X-ray Scattering). Molecular modelling was also used to highlight the possible conformations the hydrogelator can take. The gels displayed a weak and reversible transition near 20°C, close to room temperature, ascribed to the wormlike micelles 2D-sheets network. Heating over 30°C led to the loss of the gel macroscopic integrity, but gel fragments were still observed in suspension. A second transition near 50°C, ascribed to the network of helical fibres, finally dissolved completely these fragments. The gels showed thixotropic behaviour, recovering slowly their initial elastic modulus, in few hours, after injection through a needle. Stable gels were tested as scaffold for neural cell line culture, showing a reduced biocompatibility. This new gelator is a clear illustration of how controlling the pathway was critical for gel formation and how a new kind of self-assembly was obtained by shearing.
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Affiliation(s)
- Juliette Fitremann
- CNRS - Université de Toulouse III Paul Sabatier, Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (IMRCP, UMR 5623), Bat 2R1, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France.
| | - Barbara Lonetti
- CNRS - Université de Toulouse III Paul Sabatier, Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (IMRCP, UMR 5623), Bat 2R1, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3-Sesto Fiorentino, I-50019 Florence, Italy
| | - Isabelle Fabing
- CNRS UMR 5068, LSPCMIB, Université de Toulouse, Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
| | - Bruno Payré
- Centre de Microscopie Electronique Appliquée à la Biologie (CMEAB), Faculté de Médecine Rangueil, Université de Toulouse III Paul Sabatier, Bâtiment A5, R.D.C., 133 Route de Narbonne, 31400 Toulouse, France
| | - Christelle Boulé
- Université Claude Bernard UCBL Lyon1, Service de Prestations CTµ EZUS, Bâtiment Darwin B, 5 rue Raphaël Dubois, 69622 Villeurbanne Cedex, France
| | - Isabelle Loubinoux
- TONIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Laurence Vaysse
- TONIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, France
| | - Luis Oriol
- Instituto de Ciencia de Materiales de Aragon (ICMA),Universidad de Zaragoza-CSIC, Dpto. Quimica Organica, Facultad de Ciencias, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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20
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Zhang R, Yu R, Xu Q, Li X, Luo J, Jiang B, Wang L, Guo S, Wu N, Shi D. Discovery and evaluation of the hybrid of bromophenol and saccharide as potent and selective protein tyrosine phosphatase 1B inhibitors. Eur J Med Chem 2017; 134:24-33. [PMID: 28395151 DOI: 10.1016/j.ejmech.2017.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/21/2017] [Accepted: 04/02/2017] [Indexed: 11/28/2022]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) is a key negative regulator of insulin signaling pathway. Inhibition of PTP1B is expected to improve insulin action. Appropriate selectivity and permeability are the gold standard for excellent PTP1B inhibitors. In this work, molecular hybridization-based screening identified a selective competitive PTP1B inhibitor. Compound 10a has IC50 values of 199 nM against PTP1B, and shows 32-fold selectivity for PTP1B over the closely related phosphatase TCPTP. Molecule docking and molecular dynamics studies reveal the reason of selectivity for PTP1B over TCPTP. Moreover, the cell permeability and cellular activity of compound 10a are demonstrated respectively.
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Affiliation(s)
- Renshuai Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Qi Xu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xiangqian Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jiao Luo
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Bo Jiang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Lijun Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Shuju Guo
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ning Wu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Dayong Shi
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China.
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21
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Zhang R, Song L, Jiang B, Wang L, Wu N, Guo S, Shi D. Design of antitumor agents containing carbohydrate based on GLUT1, and evaluation of antiproliferative activity. Bioorg Med Chem Lett 2017; 27:2488-2492. [PMID: 28462838 DOI: 10.1016/j.bmcl.2017.03.094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 03/14/2017] [Accepted: 03/31/2017] [Indexed: 11/30/2022]
Abstract
A series of novel carbohydrate-modified antitumor compounds were designed based on glucose transporter 1 (GLUT1), and evaluated for their anticancer activities against four cancer cell lines. The ribose derivatives (compound 9 and 10) exhibited modest inhibitory activity. The compound 9 significantly inhibited the migration of A549 cell and induced A549 cell apoptosis in a concentration-dependent manner. Moreover, compound 9 blocked A549 cells at the G0/G1 phase. The cellular uptake studies suggested that ribose-modified compound 9 could be taken through GLUT1 in A549 cell line.
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Affiliation(s)
- Renshuai Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Lairong Song
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Bo Jiang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Lijun Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ning Wu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Shuju Guo
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Dayong Shi
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China.
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22
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Wang Z, Zhuang J, Wang X, Li Z, Fu Y, Qin M. Limited adsorption selectivity of active carbon toward non- saccharide compounds in lignocellulose hydrolysate. Bioresour Technol 2016; 208:195-199. [PMID: 26944457 DOI: 10.1016/j.biortech.2016.02.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/15/2016] [Accepted: 02/17/2016] [Indexed: 06/05/2023]
Abstract
Prehydrolysis of lignocellulose produces abundant hemicellulose-derived saccharides (HDS). To obtain pure HDS for application in food or pharmaceutical industries, the prehydrolysis liquor (PHL) must be refined to remove non-saccharide compounds (NSC) derived from lignin depolymerization and carbohydrate degradation. In this work, activated carbon (AC) adsorption was employed to purify HDS from NSC with emphasis on adsorption selectivity. The adsorption isotherms showed the priority of NSC to be absorbed over HDS at low AC level. However, increase of AC over 90% of NSC removal made adsorption non-selective due to competitive adsorption between NSC and HDS. Size exclusion chromatography showed that the adsorption of oligomeric HDS was dominant while monomeric HDS was inappreciable. The limited selectivity suggested that AC adsorption is infeasibility for HDS purification, but applicable as a pretreatment method.
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Affiliation(s)
- Zhaojiang Wang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China.
| | - Jingshun Zhuang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Xiaojun Wang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Zongquan Li
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Yingjuan Fu
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Menghua Qin
- Laboratory of Organic Chemistry, Taishan University, Taian 271021, China
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Wang X, Zhuang J, Fu Y, Tian G, Wang Z, Qin M. Separation of hemicellulose-derived saccharides from wood hydrolysate by lime and ion exchange resin. Bioresour Technol 2016; 206:225-230. [PMID: 26859331 DOI: 10.1016/j.biortech.2016.01.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 01/27/2016] [Accepted: 01/28/2016] [Indexed: 06/05/2023]
Abstract
A combined process of lime treatment and mixed bed ion exchange was proposed to separate hemicellulose-derived saccharides (HDS) from prehydrolysis liquor (PHL) of lignocellulose as value added products. The optimization of lime treatment achieved up to 44.2% removal of non-saccharide organic compounds (NSOC), mainly colloidal substances, with negligible HDS degradation at 0.5% lime level and subsequent neutralization by phosphoric acid. The residual NSOC and calcium ions in lime-treated PHL were eliminated by mixed bed ion exchange. The breakthrough curves of HDS and NSOC showed selective retention toward NSOC, leading to 75% HDS recovery with 95% purity at 17 bed volumes of exchange capacity. In addition, macroporous resin showed higher exchange capacity than gel resin as indicated by the triple processing volume. The remarkable selectivity of the combined process suggested the feasibility for HDS separation from PHL.
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Affiliation(s)
- Xiaojun Wang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Jingshun Zhuang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Yingjuan Fu
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Guoyu Tian
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Zhaojiang Wang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China.
| | - Menghua Qin
- Laboratory of Organic Chemistry, Taishan University, Taian 271021, China
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Banipal PK, Sharma M, Banipal TS. Volumetric and UV absorption studies on understanding the solvation behavior of polyhydroxy solutes in l-ascorbic acid(aq) solutions at T=(288.15 to 318.15)K. Food Chem 2016; 192:765-74. [PMID: 26304409 DOI: 10.1016/j.foodchem.2015.07.072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 07/16/2015] [Accepted: 07/17/2015] [Indexed: 11/23/2022]
Abstract
Thermodynamic and spectroscopic data characterizing the solvation behavior of polyhydroxy compounds are in demand to get better understanding about the mechanisms of taste chemoreception, protein stabilization, etc. Apparent molar volumes for monosaccharides, disaccharides, derivatives, and polyols in (0.05, 0.15, 0.25 and 0.35) mol kg(-1) aqueous solutions of l-ascorbic acid have been determined from density data measured at (288.15, 298.15, 308.15 and 318.15)K under atmospheric pressure. Standard partial molar volumes at infinite-dilution and corresponding volumes of transfer of solutes from water to L-ascorbic acid(aq) have been calculated. Interaction coefficients and standard partial molar expansibilities have also been evaluated. The basic taste quality of studied solutes has been assessed from apparent massic volumes. UV absorption studies support the interactions between solutes and L-ascorbic acid. Influence of pH variation was taken into consideration while evaluating chemical behavior and stability of L-ascorbic acid in aqueous and buffer solutions.
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Wang X, Zhuang J, Jiang J, Fu Y, Qin M, Wang Z. Separation and purification of hemicellulose-derived saccharides from wood hydrolysate by combined process. Bioresour Technol 2015; 196:426-430. [PMID: 26275826 DOI: 10.1016/j.biortech.2015.07.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/17/2015] [Accepted: 07/18/2015] [Indexed: 06/04/2023]
Abstract
Prehydrolysis of wood biomass prior to kraft cooking provides a stream containing hemicellulose-derived saccharides (HDSs) but also undesired non-saccharide compounds (NSCs) that were resulted from lignin depolymerization and carbohydrate degradation. In this study, a combined process consisting of lime treatment, resin adsorption, and gel filtration was developed to separate HDSs from NSCs. The macro-lignin impurities that accounted for 32.2% of NSCs were removed by lime treatment at 1.2% dosage with negligible HDSs loss. The majority of NSCs, lignin-derived phenolics, were eliminated by mixed bed ion exchange resin, elevating NSCs removal to 94.0%. The remaining NSCs, furfural and hydroxymethylfurfural, were excluded from HDSs by gel filtration. Chemical composition analysis showed that xylooligosaccharides (XOS) with the degree of depolymerization from 2 to 6 accounted for 28% of the total purified HDSs.
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Affiliation(s)
- Xiaojun Wang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Jingshun Zhuang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Jungang Jiang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Yingjuan Fu
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China
| | - Menghua Qin
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China; Laboratory of Organic Chemistry, Taishan University, Taian 271021, China.
| | - Zhaojiang Wang
- Key Laboratory of Paper Science & Technology, Qilu University of Technology, Jinan 250353, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China.
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