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Bray JM, Stephens SM, Weierbach SM, Vargas K, Lambert KM. Recent advancements in the use of Bobbitt's salt and 4-acetamidoTEMPO. Chem Commun (Camb) 2023; 59:14063-14092. [PMID: 37946555 DOI: 10.1039/d3cc04709a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Recent advances in synthetic methodologies for selective, oxidative transformations using Bobbitt's salt (4-acetamido-2,2,6,6-tetramethyl-1-oxopiperidinium tetrafluoroborate, 1) and its stable organic nitroxide counterpart ACT (4-acetamidoTEMPO, 4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxyl, 2) have led to increased applications across a broad array of disciplines. Current applications and mechanistic understanding of these metal-free, environmentally benign, and easily accessible organic oxidants now span well-beyond the seminal use of 1 and 2 in selective alcohol oxidations. New synthetic methodologies for the oxidation of alcohols, ethers, amines, thiols, C-H bonds and other functional groups with 1 and 2 along with the field's current mechanistic understandings of these processes are presented alongside our contributions in this area. Exciting new areas harnessing the unique properties of these oxidants include: applications to drug discovery and natural product total synthesis, the development of new electrocatalytic methods for depolymerization of lignin and modification of other biopolymers, in vitro and in vivo nucleoside modifications, applications in supramolecular catalysis, the synthesis of new polymers and materials, enhancements in the design of organic redox flow batteries, uses in organic fuel cells, applications and advancements in energy storage, the development of electrochemical sensors, and the production of renewable fuels.
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Affiliation(s)
- Jean M Bray
- Department of Chemistry and Biochemistry, Old Dominion University, 4501 Elkhorn Ave, Norfolk, VA 23529, USA.
| | - Shannon M Stephens
- Department of Chemistry and Biochemistry, Old Dominion University, 4501 Elkhorn Ave, Norfolk, VA 23529, USA.
| | - Shayne M Weierbach
- Department of Chemistry and Biochemistry, Old Dominion University, 4501 Elkhorn Ave, Norfolk, VA 23529, USA.
| | - Karen Vargas
- Department of Chemistry and Biochemistry, Old Dominion University, 4501 Elkhorn Ave, Norfolk, VA 23529, USA.
| | - Kyle M Lambert
- Department of Chemistry and Biochemistry, Old Dominion University, 4501 Elkhorn Ave, Norfolk, VA 23529, USA.
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2
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Cai G, Wu C, Mao N, Song Z, Yu L, Zhu T, Peng S, Yang Y, Liu Z, Wang D. Isolation, purification and characterization of Pueraria lobata polysaccharide and its effects on intestinal function in cyclophosphamide-treated mice. Int J Biol Macromol 2022; 218:356-367. [PMID: 35878664 DOI: 10.1016/j.ijbiomac.2022.07.153] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 11/17/2022]
Abstract
This study investigated the structure of acidic Pueraria lobata polysaccharide (a-PLP) and its bioactive effects on intestinal function in cyclophosphamide (CY)-treated mice. The structure of a-PLP was preliminarily analyzed, and the results showed that it is composed of fucose, arabinose, rhamnose, galactose, glucose, xylose, mannose, galacturonic acid, and glucuronic acid in a molar proportion of 2.54:16.52: 6.14: 16.60: 4.05: 4.75: 0.48: 47.44: 1.47 with a weight average molecular weight of 22.675 kDa. In addition, the methylation analysis suggested that 4-Gal(p)-UA may be the main backbone of a-PLP. Furthermore, a-PLP (1.2 g/kg, 0.8 g/kg, and 0.4 g/kg) was administered orally for the treatment of CY-treated mice. The results showed that a-PLP could remarkably relieved weight loss and intestinal villous atrophy in CY-treated mice. Meanwhile, the secretion levels of sIgA, β-defensin, cytokines, Mucin-2, and tight junction proteins increased significantly. Moreover, the ratio of T (CD4+ and CD8+) cells in the Peyer's patches and mesenteric lymph nodes also increased remarkably, along with the number of goblet cells. Furthermore, a-PLP decreased the levels of diamino oxidase and malondialdehyde, but up-regulated the activity of superoxide dismutase. In summary, a-PLP exhibited great benefits by attenuating CY side effects, opening a potential avenue to effectively treat cancer and reduce the suffering of chemotherapy patients.
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Affiliation(s)
- Gaofeng Cai
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Caihong Wu
- College of Veterinary Medicine, Jiangsu Agri-animal Husbandry Vocational College, Taizhou, Jiangsu 225300, PR China
| | - Ningning Mao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zuchen Song
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lin Yu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tianyu Zhu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Song Peng
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yang Yang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
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3
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Polysaccharide-based nanoparticles fabricated from oppositely charged curdlan derivatives for curcumin encapsulation. Int J Biol Macromol 2022; 213:923-933. [DOI: 10.1016/j.ijbiomac.2022.05.179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 12/18/2022]
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Rheological investigation of a versatile salecan/curdlan gel matrix. Int J Biol Macromol 2021; 193:2202-2209. [PMID: 34780896 DOI: 10.1016/j.ijbiomac.2021.11.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 11/06/2021] [Accepted: 11/07/2021] [Indexed: 11/21/2022]
Abstract
Hydrogel, as a three-dimensional material with high water content, has unique physicochemical and variable mechanical properties. Natural polysaccharide-based composite hydrogels are very popular within medical industry as these viscoelastic materials are non-toxic, biodegradable, bioabsorbable, and biocompatible. This research investigates the engineering of novel composite hydrogels from natural polysaccharides salecan and curdlan without any structural modification and chemical crosslinking. The scanning electron microscopy, Fourier transform infrared spectroscopy and various rheological methods were employed to investigate the morphology, molecular interaction, and flow behavior of the samples respectively. The key rheological parameters were compared using the Power Law, Herschel-Bulkley and Arrhenius models. This is the first study reporting a novel composite hydrogel made from Salecan and Curdlan with ideal elasticity, enhanced thermostability, good injectability, self-recovery and other rheological properties that will pave the way for application in different fields.
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Hu T, Cai W, Cai W, Zheng Z, Xiao Y, Huang Q. Structure, size and aggregated morphology of a β-D-glucan from Lignosus rhinocerotis as affected by ultrasound. Carbohydr Polym 2021; 269:118344. [PMID: 34294351 DOI: 10.1016/j.carbpol.2021.118344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/25/2021] [Accepted: 06/11/2021] [Indexed: 01/12/2023]
Abstract
The effect of ultrasonic treatment on the structure, size and aggregated morphology of Lignosus rhinocerotis polysaccharide (LRP) was investigated. Ultrasonic treatment for 10 min has demonstrated to improve the aqueous solubility of LRP, leading to a uniform and narrow LRP particle size distribution. Meanwhile, short-time ultrasound was found to obviously decrease the molecular size parameters (Mw, Mn, <S2>z1/2, [η] and Rh) of LRP, and transform the hyperbranched LRP molecules into flexible and extended chains, which would reaggregate to form spherical aggregates under long-time ultrasonication. Additionally, Congo red experiment combined with CD analysis indicated the existence of triple helix structure in LRP, which was still retained after ultrasonic treatment. Furthermore, under short-time ultrasonication, the spherical aggregates with some branched chains in the native LRP solution could disaggregate and form triple helixes that could be further arranged to a dense network structure, but the untangled LRP chains would reaggregate after long-time ultrasonication. CHEMICAL COMPOUNDS STUDIED IN THIS ARTICLE: Congo red (PubChem CID: 11313); Sodium hydroxide (PubChem CID: 14798); Potassium bromide (PubChem CID: 253877).
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Affiliation(s)
- Ting Hu
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huanggang 438000, China
| | - Wudan Cai
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenfei Cai
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhaomin Zheng
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yidong Xiao
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qilin Huang
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China.
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7
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Liu G, Yang X, Zhang J, Liang L, Miao F, Ji T, Ye Z, Chu M, Ren J, Xu X. Synthesis, stability and anti-fatigue activity of selenium nanoparticles stabilized by Lycium barbarum polysaccharides. Int J Biol Macromol 2021; 179:418-428. [PMID: 33676981 DOI: 10.1016/j.ijbiomac.2021.03.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/08/2023]
Abstract
Lycium barbarum polysaccharides (LBP) with different molecular weights (LBP1, LBP2 and LBP3) of 92,441 Da, 7714 Da, and 3188 Da were used as stabilizers and capping agents to prepare uniformly dispersed selenium nanoparticles (SeNPs), and determined the storage stability. In addition, the anti-fatigue activity of LBP-decorated SeNPs with the best stability (LBP1-SeNPs) was estimated by using forced swimming test. The results showed that LBP1-SeNPs exhibited smaller particle size and more excellent stability than those of LBP2-SeNPs and LBP3-SeNPs when the storage time was extended to 30 days, and the average particle size was maintained at about 105.4 nm. The exhaustion swimming time of all tested dose groups of LBP1-SeNPs was significantly longer than the control group (p < 0.05), and the high-dose group among them was even obviously longer than the positive group (p < 0.05). The results of glycogen, blood urea nitrogen (BUN), blood lactic acid (BLA), superoxide dismutase (SOD), and malondialdehyde (MDA) levels were further confirmed that LBP1-SeNPs could relieve fatigue by increasing the reserve of glycogen, enhancing antioxidant enzyme levels and regulating metabolic mechanism. These results demonstrated that LBP1-SeNPs could be developed as a potential anti-fatigue nutritional supplement.
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Affiliation(s)
- Guoyan Liu
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Xue Yang
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Jixian Zhang
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Li Liang
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Feng Miao
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Tao Ji
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Zhiqiang Ye
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Meng Chu
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Jiaoyan Ren
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510540, China
| | - Xin Xu
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China.
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8
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Enhancing the colloidal stabilities of zein nanoparticles coated with carboxylic curdlans. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Construction and characterization of antioxidative ferulic acid-grafted carboxylic curdlan conjugates and their contributions on β-carotene storage stability. Food Chem 2021; 349:129166. [PMID: 33550019 DOI: 10.1016/j.foodchem.2021.129166] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 11/22/2022]
Abstract
Grafting copolymerization of phenolic acids onto polysaccharides is an important strategy to improve their biological activities. In this study, ferulic acid (FA)-grafted carboxylic curdlan conjugates, namely, Cur-8-g-FA, Cur-24-g-FA, and Cur-48-g-FA, were synthesized by free radical-induced grafting. Results showed that FA was covalently grafted onto carboxylic curdlans via ester bonds. The grafting ratios of Cur-8-g-FA, Cur-24-g-FA, and Cur-48-g-FA were 223.03 ± 12.63, 115.63 ± 5.96, and 152.30 ± 4.57 mg FA/g, respectively, which were related with the carboxylate contents, molecular weights, and chain conformations of carboxylic curdlans. Compared with carboxylic curdlans, the FA-grafted carboxylic curdlan conjugates had lower thermal stability, molecular weight, and rheological property and looser surface morphology but had more prominent antioxidant benefits in vitro, which were proportional to their grafting ratios. Moreover, good storage stability against chemical degradation was exhibited by the β-carotene in Pickering emulsions stabilized by Cur-8-g-FA with a high grafting ratio and molecular weight.
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Yu YB, Wu MY, Wang C, Wang ZW, Chen TT, Yan JK. Constructing biocompatible carboxylic curdlan-coated zein nanoparticles for curcumin encapsulation. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.106028] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Zhu Y, Bai J, Zhou Y, Zhang Y, Zhao Y, Dong Y, Xiao X. Water-soluble and alkali-soluble polysaccharides from bitter melon inhibited lipid accumulation in HepG2 cells and Caenorhabditis elegans. Int J Biol Macromol 2020; 166:155-165. [PMID: 33172614 DOI: 10.1016/j.ijbiomac.2020.10.128] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/12/2020] [Accepted: 10/15/2020] [Indexed: 12/19/2022]
Abstract
Bitter melon polysaccharides (BPS) have been reported to have hypolipidemic effects. However, the precise mechanism of BPS regulating lipid metabolism remains elusive. Water-soluble (WBPS) and alkali-soluble bitter melon polysaccharides (ABPS) were extracted to evaluate the fat-lowering bioactivities in HepG2 cells and Caenorhabditis elegans. WBPS and ABPS were slightly different in the uronic acid contents (22.23% and 5.69%), monosaccharide composition, molecular weight (Mw: 332 kDa and 1552 kDa, respectively) and IR spectra. In palmitic acid-treated HepG2 cell, the ABPS exhibited better effects on accelerating glucose consumption and decreasing the triglyceride content than WBPS via stimulating glucose consumption (GLUT4) and gluconeogenesis (PEPCK). In the model of glucose-treated C. elegans, we observed that both WBPS and ABPS obviously suppressed the fat accumulation, more significantly by ABPS, along with no toxicity towards some physical activities. Fat-5, fat-6 and fat-7 mediated fatty acid desaturases pathways were further confirmed to be involved in the lipid-lowering effects of BPSs. Our studies demonstrated that both WBPS and ABPS can exhibit effects on fat- lowering in HepG2 cells and C. elegans.
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Affiliation(s)
- Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yurong Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yi Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Ying Dong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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Yan JK, Yu YB, Wang C, Cai WD, Wu LX, Yang Y, Zhang HN. Production, physicochemical characteristics, and in vitro biological activities of polysaccharides obtained from fresh bitter gourd (Momordica charantia L.) via room temperature extraction techniques. Food Chem 2020; 337:127798. [PMID: 32799166 DOI: 10.1016/j.foodchem.2020.127798] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 07/27/2020] [Accepted: 08/06/2020] [Indexed: 01/17/2023]
Abstract
In this study, polysaccharides (BPSs) were obtained from fresh bitter gourd (Momordica charantia L.) by room temperature extraction techniques, including three-phase partitioning (TPP) and ultrasonic-assisted extraction (UAE) performed in different solvents. The results showed that the extraction methods had significant influence on the extraction yield, chemical composition, weight-average molecular weight (Mw), monosaccharide composition, preliminary structural characterization and microstructure of the BPSs. The BPS-W sample obtained from the bitter gourd residue via UAE in distilled water had a higher uronic acid content (24.22%) and possessed stronger antioxidant capacities and α-amylase and α-glycosidase inhibitory activities than BPS-C extracted with UAE in citric acid, BPS-A extracted with UAE in 1.25 mol/L NaOH/0.05% NaBH4, and BPS-J extracted from bitter gourd juice by TPP. Moreover, BPS-A, which had the lowest Mws, showed the best bile acid-binding capacity among the four BPSs. This study had great potentials for the preparation of bioactive polysaccharides from fresh vegetables.
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Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Yun-Bo Yu
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Chun Wang
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Wu-Dan Cai
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Li-Xia Wu
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Yan Yang
- National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, China; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - He-Nan Zhang
- National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, China; Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
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Yan JK, Cai WD, Wang C, Yu YB, Zhang HN, Yang Y, Wang WH. Macromolecular behavior, structural characteristics and rheological properties of alkali-neutralization curdlan at different concentrations. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105785] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Wang C, Yu YB, Chen TT, Wang ZW, Yan JK. Innovative preparation, physicochemical characteristics and functional properties of bioactive polysaccharides from fresh okra (Abelmoschus esculentus (L.) Moench). Food Chem 2020; 320:126647. [DOI: 10.1016/j.foodchem.2020.126647] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/18/2020] [Accepted: 03/18/2020] [Indexed: 10/24/2022]
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Regioselective sulfation of β-glucan from Ganoderma lucidum and structure-anticoagulant activity relationship of sulfated derivatives. Int J Biol Macromol 2020; 155:470-478. [PMID: 32240743 DOI: 10.1016/j.ijbiomac.2020.03.234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 02/07/2023]
Abstract
In the present study, regioselective sulfation of β-glucan (GLP) from Ganoderma lucidum were firstly established by using 4,4'-dimethoxytrityl chloride and hexamethyldisilazane as protecting precursor. 2,4,6-O-sulfated, 6-O-sulfated and 2,4-O-sulfated GLP derivatives were prepared and the molecular weights (Mw) of derivatives were determined to range from 0.94 × 104 to 6.27 × 104 g/mol, while the degrees of sulfation (DS) were calculated to vary from 0.83 to 1.74. The regioselective sulfation of GLP was confirmed by FT-IR, 13C NMR spectroscopy and methylation analysis. Results indicated that the sulfated substitution sites were predominantly at C-6 in 6-O-sulfated GLP (S6-OGLP) and C-4 in 2,4-O-sulfated GLP (S2,4-OGLP), respectively. Clotting assays (APTT, PT and TT) in vitro showed that sulfate groups were essential for anticoagulant activity and S6-OGLP exhibited much higher than others. Meanwhile, sulfated GLP with higher DS and Mw showed stronger anticoagulant activity in the case of the same condition.
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Xiao X, Tan C, Sun X, Zhao Y, Zhang J, Zhu Y, Bai J, Dong Y, Zhou X. Fermented barley β-glucan regulates fat deposition in Caenorhabditis elegans. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:3408-3417. [PMID: 32166779 DOI: 10.1002/jsfa.10375] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 02/26/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Barley contains a relatively high concentration of the mixed-linkage (1 → 3) (1 → 4) β-glucan, which has been reported to be a functional food with prebiotic potential. In the current study we compared the properties of two neutral barley β-glucans, obtained from raw barley: raw barley β-glucan (RBG) and Lactobacillus plantarum dy-1-fermented barley (FBG). RESULTS Molecular characteristics revealed that the molecular weight of barley β-glucan decreased from 1.13 × 105 D to 6.35 × 104 D after fermentation. Fermentation also improved the water / oil holding capacity, solubility, and swelling capacity of barley β-glucan. Both RBG and FBG significantly improved the locomotive behavior of nematodes, thereby increasing their energy consumption and reducing fat deposition - the effect was more significant with FBG. These effects could potentially depend on nhr-49, TGF-daf-7 mediated pathways and so on, in which nhr-49 factor is particularly required. CONCLUSION These results suggested that fermentation may enhance in vitro physiological activities of barley β-glucan, thereby altering the effects on the lipid metabolism in vivo. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Cui Tan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xinjuan Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Jiayan Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Ying Dong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xinghua Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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17
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Chang Y, Lu W, Chu Y, Yan J, Wang S, Xu H, Ma H, Ma J. Extraction of polysaccharides from maca: Characterization and immunoregulatory effects on CD4 + T cells. Int J Biol Macromol 2020; 154:477-485. [PMID: 32179120 DOI: 10.1016/j.ijbiomac.2020.03.098] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 03/05/2020] [Accepted: 03/12/2020] [Indexed: 12/12/2022]
Abstract
The immunomodulatory effects of maca polysaccharides (MCPs) on macrophages have been demonstrated in many studies. However, the effects of MCPs on CD4+ T cells have not been studied. Four water-soluble MCPs, labeled MCP1 (weight-average molecular weights [Mws] of 896.1 and 276.6 kDa), MCP2 (Mws of 337.8 and 219.0 kDa), MCP3 (Mws of 110.6, 58.1, and 38.9 kDa), and MCP4 (Mws of 15.7, 12.6, and 12.1 kDa), were obtained from maca by graded ethanol precipitation. The immunoregulatory effects of MCPs on CD4+ T cells were evaluated for the first time. The experimental results indicated that all MCPs had immunoregulatory effects on CD4+ T cells. However, the effects of MCP2 were stronger compared to the other three components, not only in promoting the proliferation of CD4+ T cells but also in terms of secretion of interferon-γ (IFN-γ). The molecular weight and monosaccharide compositions of MCPs were analyzed to explore the structure-activity relationship. The results suggested that the molecular weight and the galactosamine (GalN) of MCPs might be determining factors for its bioactivity. These findings suggest that the MCP2 isolated in our study have immune potentiation effects on CD4+ T cells.
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Affiliation(s)
- Yi Chang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Wei Lu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Ying Chu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Jingkun Yan
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shengjun Wang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Huaxi Xu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China
| | - Haile Ma
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Jie Ma
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China.
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18
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Cai WD, Zhu J, Wu LX, Qiao ZR, Li L, Yan JK. Preparation, characterization, rheological and antioxidant properties of ferulic acid-grafted curdlan conjugates. Food Chem 2019; 300:125221. [DOI: 10.1016/j.foodchem.2019.125221] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/17/2019] [Accepted: 07/21/2019] [Indexed: 12/15/2022]
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19
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Xiao X, Tan C, Sun X, Zhao Y, Zhang J, Zhu Y, Bai J, Dong Y, Zhou X. Effects of fermentation on structural characteristics and in vitro physiological activities of barley β-glucan. Carbohydr Polym 2019; 231:115685. [PMID: 31888856 DOI: 10.1016/j.carbpol.2019.115685] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/26/2019] [Accepted: 11/26/2019] [Indexed: 12/24/2022]
Abstract
The effects of fermentation by Lactobacillus plantarum dy-1 on the main structural changes of barley β-glucan and their in vitro activities were studied. Molecular characteristics, infrared spectroscopy, monosaccharide composition, methylation, 1D and 2D-NMR analyses and scanning electron microscopy revealed that both (raw barley β-glucan) RBG and fermented barley β-glucan (FBG) are polysaccharides predominanted by β-(1→3) and β-(1→4) linked glucose. However, different molecular weight (decreasing from 1.13×105 D to 6.35×104 D), the ratio of the β-(1→3) residues to the β-(1→4) residues (ranging from 1:1.98-1:2.50 to 1:1.8-1:2.24) and microstructure features (transforming from a rod-like to sheet-like structure) were observed. Bioassay results showed that FBG exhibited improved inhibitory activities of α-amylase, α-glucosidase and lipase, as well as the adsorption of cholesterol under acidic conditions compared to RBG. These results suggested that fermentation may enhance in vitro physiological activities of barley β-glucan, especially related to glucose and lipid metabolism.
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Affiliation(s)
- Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Cui Tan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xinjuan Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jiayan Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Ying Dong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xinghua Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
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20
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Wang YY, Ma H, Yan JK, Wang KD, Yang Y, Wang WH, Zhang HN. Three-phase partitioning system with dimethyl carbonate as organic phase for partitioning of exopolysaccharides from Phellinus baumii. Int J Biol Macromol 2019; 131:941-948. [DOI: 10.1016/j.ijbiomac.2019.03.149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/28/2019] [Accepted: 03/21/2019] [Indexed: 10/27/2022]
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21
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Conformational and rheological properties of a quaternary ammonium salt of curdlan. Food Chem 2019; 280:130-138. [DOI: 10.1016/j.foodchem.2018.12.059] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 12/12/2022]
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22
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Wang YY, Ma H, Ding ZC, Yang Y, Wang WH, Zhang HN, Yan JK. Three-phase partitioning for the direct extraction and separation of bioactive exopolysaccharides from the cultured broth of Phellinus baumii. Int J Biol Macromol 2019; 123:201-209. [DOI: 10.1016/j.ijbiomac.2018.11.065] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 10/28/2018] [Accepted: 11/12/2018] [Indexed: 12/16/2022]
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23
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Khajouei RA, Keramat J, Hamdami N, Ursu AV, Delattre C, Laroche C, Gardarin C, Lecerf D, Desbrières J, Djelveh G, Michaud P. Extraction and characterization of an alginate from the Iranian brown seaweed Nizimuddinia zanardini. Int J Biol Macromol 2018; 118:1073-1081. [PMID: 29964113 DOI: 10.1016/j.ijbiomac.2018.06.154] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/22/2018] [Accepted: 06/27/2018] [Indexed: 12/12/2022]
Abstract
Sodium alginate from Nizimuddinia zanardini (an Iranian brown algae) was extracted with acid and alkaline solutions, partially and totally hydrolyzed and analyzed for its biochemical composition. 1H NMR spectroscopy, SEC-MALLS, HPAEC and FT-IR were performed to determine its structure and its physico-chemical properties. This alginate has a M/G ratio of 1.1, a molecular weight of 103 kDa, a polydispersity index of 1.22, and an intrinsic viscosity of 342 mL/g. Its antioxidant activity was tested by DPPH radical scavenging showing its potential for food preservation. Rheological properties of solutions of this alginate with concentrations between 1 and 5% (w/v) in water and 0.5 M NaCl were investigated indicating a Newtonian fluid type behaviour in water and a shear thinning fluid type behaviour in NaCl solutions.
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Affiliation(s)
- Roya Abka Khajouei
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Javad Keramat
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Nasser Hamdami
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Alina-Violeta Ursu
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Cedric Delattre
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Céline Laroche
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Christine Gardarin
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Didier Lecerf
- Laboratoire Polymères Biopolymères Surface, CNRS FRE 3101, Université de Rouen, Bd Maurice de Broglie, 76821 Mont Saint Aignan Cedex, France
| | - Jacques Desbrières
- Université de Pau et des Pays de l'Adour, IPREM, Helioparc Pau Pyrénées, 2 Avenue P. Angot, 64053 Pau Cedex 9, France
| | - Gholamreza Djelveh
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Philippe Michaud
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
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24
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Yan JK, Wu LX, Qiao ZR, Cai WD, Ma H. Effect of different drying methods on the product quality and bioactive polysaccharides of bitter gourd (Momordica charantia L.) slices. Food Chem 2018; 271:588-596. [PMID: 30236720 DOI: 10.1016/j.foodchem.2018.08.012] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 01/08/2023]
Abstract
In this study, three drying methods, namely, hot-air drying, freeze drying (FD), and infrared radiation drying (ID), were applied to dry bitter gourd (Momordica charantia L.) slices. Results showed that the drying methods had significant influences on appearance, color, rehydration ratio, and microstructure of dried bitter gourd. FD provided high-quality dried bitter gourd products due to the uniform honeycomb network and less collapsed structure. Three water-soluble bitter gourd polysaccharides (BPS-H, BPS-F, and BPS-I) were obtained from the bitter gourd dried using the three drying methods. The three polysaccharides exhibited similar preliminary structural characteristics with different monosaccharide compositions and molecular weights. BPS-I obtained from ID-dried bitter gourd had higher sugar and uronic acid contents than BPS-H and BPS-F. BPS-I exhibited stronger antioxidant activities and bile acid-binding capacity in vitro than BPS-H and BPS-F. Moreover, BPS-F and BPS-I showed significant α-amylase inhibitory activities in vitro.
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Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Li-Xia Wu
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Ze-Ru Qiao
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Wu-Dan Cai
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Haile Ma
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
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25
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Tang R, Hao J, Zong R, Wu F, Zeng Y, Zhang Z. Oxidation pattern of curdlan with TEMPO-mediated system. Carbohydr Polym 2018; 186:9-16. [DOI: 10.1016/j.carbpol.2017.12.080] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 12/31/2017] [Indexed: 10/18/2022]
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26
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Formation and characterization of polyelectrolyte complex synthesized by chitosan and carboxylic curdlan for 5-fluorouracil delivery. Int J Biol Macromol 2018; 107:397-405. [DOI: 10.1016/j.ijbiomac.2017.09.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/18/2017] [Accepted: 09/03/2017] [Indexed: 01/28/2023]
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27
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Qiu WY, Wang K, Wang YY, Ding ZC, Wu LX, Cai WD, Yan JK. pH dependent green synthesis of gold nanoparticles by completely C6-carboxylated curdlan under high temperature and various pH conditions. Int J Biol Macromol 2018; 106:498-506. [DOI: 10.1016/j.ijbiomac.2017.08.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/19/2017] [Accepted: 08/02/2017] [Indexed: 12/01/2022]
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28
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Yan JK, Qiu WY, Wang YY, Wang WH, Yang Y, Zhang HN. Fabrication and stabilization of biocompatible selenium nanoparticles by carboxylic curdlans with various molecular properties. Carbohydr Polym 2018; 179:19-27. [DOI: 10.1016/j.carbpol.2017.09.063] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 08/30/2017] [Accepted: 09/20/2017] [Indexed: 11/30/2022]
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29
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Construction and characterization of nanosized curdlan sulfate/chitosan polyelectrolyte complex toward drug release of zidovudine. Carbohydr Polym 2017; 174:209-216. [DOI: 10.1016/j.carbpol.2017.06.082] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/13/2017] [Accepted: 06/20/2017] [Indexed: 11/18/2022]
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30
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A hyperbranched β-d-glucan with compact coil conformation from Lignosus rhinocerotis sclerotia. Food Chem 2017; 225:267-275. [DOI: 10.1016/j.foodchem.2017.01.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/01/2017] [Accepted: 01/06/2017] [Indexed: 01/02/2023]
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31
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Yan JK, Wu LX, Qiu WY, Wang YY, Ding ZC, Cai WD. Rheological properties of a β-1,3-polyglucuronic acid derivative from 4-acetamido-TEMPO-mediated oxidation of curdlan. RSC Adv 2017. [DOI: 10.1039/c7ra09608a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The rheological properties of a carboxylic curdlan bearing a β-1,3-polyglucuronic acid structure were investigated as a function of concentration and temperature.
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Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Li-Xia Wu
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Wen-Yi Qiu
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Yao-Yao Wang
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Zhi-Chao Ding
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Wu-Dan Cai
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
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32
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Hussain A, Zia KM, Tabasum S, Noreen A, Ali M, Iqbal R, Zuber M. Blends and composites of exopolysaccharides; properties and applications: A review. Int J Biol Macromol 2017; 94:10-27. [DOI: 10.1016/j.ijbiomac.2016.09.104] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 09/23/2016] [Accepted: 09/29/2016] [Indexed: 01/21/2023]
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33
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Yan JK, Wang YY, Wang ZB, Ma HL, Pei JJ, Wu JY. Structure and antioxidative property of a polysaccharide from an ammonium oxalate extract of Phellinus linteus. Int J Biol Macromol 2016; 91:92-9. [DOI: 10.1016/j.ijbiomac.2016.05.063] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 04/22/2016] [Accepted: 05/15/2016] [Indexed: 12/14/2022]
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34
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Wang ZB, Chen BB, Luo L, Yan JK. Fractionation, physicochemical characteristics and biological activities of polysaccharides from Pueraria lobata roots. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.07.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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35
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Yan JK, Wang YY, Zhu L, Wu JY. Green synthesis and characterization of zinc oxide nanoparticles using carboxylic curdlan and their interaction with bovine serum albumin. RSC Adv 2016. [DOI: 10.1039/c6ra15395j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Carboxylic curdlan (Cc), as a versatile β-1,3-polyglucuronic acid derivative, was used as both reducing and capping agents for the green synthesis of zinc oxide nanoparticles (ZnO NPs).
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Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
- Department of Applied Biology & Chemical Technology
| | - Yao-Yao Wang
- School of Food & Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Lin Zhu
- School of Material Science & Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Jian-Yong Wu
- Department of Applied Biology & Chemical Technology
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology in Shenzhen
- The Hong Kong Polytechnic University
- Kowloon
- China
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36
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Yan JK, Pei JJ, Ma HL, Wang ZB. Effects of ultrasound on molecular properties, structure, chain conformation and degradation kinetics of carboxylic curdlan. Carbohydr Polym 2015; 121:64-70. [DOI: 10.1016/j.carbpol.2014.11.066] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/19/2014] [Accepted: 11/29/2014] [Indexed: 11/24/2022]
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37
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Yan JK, Liu JL, Sun YJ, Tang S, Mo ZY, Liu YS. Green synthesis of biocompatible carboxylic curdlan-capped gold nanoparticles and its interaction with protein. Carbohydr Polym 2015; 117:771-777. [DOI: 10.1016/j.carbpol.2014.10.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/27/2014] [Accepted: 10/16/2014] [Indexed: 01/18/2023]
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38
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Delattre C, Pierre G, Gardarin C, Traikia M, Elboutachfaiti R, Isogai A, Michaud P. Antioxidant activities of a polyglucuronic acid sodium salt obtained from TEMPO-mediated oxidation of xanthan. Carbohydr Polym 2015; 116:34-41. [DOI: 10.1016/j.carbpol.2014.04.054] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/13/2014] [Accepted: 04/17/2014] [Indexed: 11/25/2022]
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39
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Yan JK, Ma HL, Chen X, Pei JJ, Wang ZB, Wu JY. Self-aggregated nanoparticles of carboxylic curdlan-deoxycholic acid conjugates as a carrier of doxorubicin. Int J Biol Macromol 2015; 72:333-40. [DOI: 10.1016/j.ijbiomac.2014.08.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/06/2014] [Accepted: 08/20/2014] [Indexed: 10/24/2022]
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40
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Boual Z, Pierre G, Delattre C, Benaoun F, Petit E, Gardarin C, Michaud P, El Hadj MDO. Mediterranean semi-arid plant Astragalus armatus as a source of bioactive galactomannan. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.bcdf.2014.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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