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Zhang X, Ge R, Wu J, Cai X, Deng G, Lv J, Ma M, Yu N, Yao L, Peng D. Structural characterization and improves cognitive disorder in ageing mice of a glucomannan from Dendrobium huoshanense. Int J Biol Macromol 2024; 269:131995. [PMID: 38692529 DOI: 10.1016/j.ijbiomac.2024.131995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 04/01/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
In the present work, a neutral polysaccharide (DHP-2W) with attenuating cognitive disorder was identified from Dendrobium huoshanense and its structure was clarified. The polysaccharide was successfully purified from D. huoshanense by column chromatography and its activity was evaluated. With a molecular weight of 508.934kDa, this polysaccharide is composed of mannose and glucose at a molar ratio of 75.81: 24.19. Structural characterization revealed that DHP-2W has a backbone consisting of 4)-β-D-Manp-(1 and 4)-β-D-Glcp-(1. In vivo experiments revealed that DHP-2W improved cognitive disorder in D-galactose treated mice and relieved oxidative stress and inflammation. DHP-2W attenuates D-galactose-induced cognitive disorder by inhibiting the BCL2/BAX/CASP3 pathway and activating the AMPK/SIRT pathway, thereby inhibiting apoptosis. Furthermore, DHP-2W had a significant effect on regulating the serum levels of Flavin adenine dinucleotide, Shikimic acid, and Kynurenic acid in aged mice. These, in turn, had a positive impact on AMPK/SIRT1 and BCL2/BAX/CASP3, resulting in protective effects against cognitive disorder.
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Affiliation(s)
- Xiaoqian Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China.
| | - Ruipeng Ge
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China
| | - Jing Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China
| | - Xiao Cai
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China
| | - Guanghui Deng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China
| | - Jiahui Lv
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China
| | - Mengzhen Ma
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China
| | - Nianjun Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China; MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, China; Anhui Province Key Laboratory for Research and Development of Research & Development of Chinese Medicine, Hefei, China.
| | - Liang Yao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China.
| | - Daiyin Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China; Anhui Academy of Chinese Medicine, Hefei, China; MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, China; Anhui Province Key Laboratory for Research and Development of Research & Development of Chinese Medicine, Hefei, China.
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Liu JZ, Wang L, Jiang LJ, Lyu HC, Yuan Q, Wang GF, Fu YJ, Cui Q. In sight the behavior of natural Bletilla striata polysaccharide hydrocolloids by molecular dynamics method. Int J Biol Macromol 2024; 266:131245. [PMID: 38554922 DOI: 10.1016/j.ijbiomac.2024.131245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Plant polysaccharides, distinguished by diverse glycosidic bonds and various cyclic sugar units, constitute a subclass of primary metabolites ubiquitously found in nature. Contrary to common understanding, plant polysaccharides typically form hydrocolloids upon dissolution in water, even though both excessively high and low temperatures impede this process. Bletilla striata polysaccharides (BSP), chosen for this kinetic study due to their regular repeating units, help elucidate the relationship between polysaccharide gelation and temperature. It is suggested that elevated temperatures enhance the mobility of BSP molecular chains, resulting in a notable acceleration of hydrogen bond breakage between BSP and water molecules and consequently, compromising the conformational stability of BSPs to some extent. This study unveils the unique relationship between polysaccharide dissolution processes and temperature from a kinetics perspective. Consequently, the conclusion provides a dynamical basis for comprehending the extraction and preparation of natural plant polysaccharide hydrocolloids, pharmaceuticals and related fields.
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Affiliation(s)
- Ju-Zhao Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
| | - Lu Wang
- School of Life Sciences, Westlake University, Hangzhou 310030, PR China
| | - Li-Jie Jiang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Hong-Chang Lyu
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Qiang Yuan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Guang-Fu Wang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu-Jie Fu
- College of Forestry, Beijing Forestry University, No. 35, Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Qi Cui
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
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Li L, Chen H, Huang G, Lv Y, Yao L, Guo Z, Qiu S, Wang X, Wei C. Structure of Polysaccharide from Dendrobium nobile Lindl. and Its Mode of Action on TLR4 to Exert Immunomodulatory Effects. Foods 2024; 13:1356. [PMID: 38731727 PMCID: PMC11083282 DOI: 10.3390/foods13091356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/18/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Dendrobium nobile Lindl. polysaccharide (DNP1) showed good anti-inflammatory activity in our previous study. In this study, the structural characterization of DNP1 and its mode of action on TLR4 were investigated. Structural characterization suggested that DNP1 was a linear glucomannan composed of (1 → 4)-β-Manp and (1 → 4)-β-Glcp residues, and the acetyl group was linked to the C-2 of Manp. The possible repeating structural units of DNP1 were [→4)-2-OAc-β-Manp-(1→]3 →4)-β-Glcp-(1→. Surface plasmon resonance (SPR) binding test results showed that DNP1 did not bind directly to TLR4. The TLR4 and MD2 receptor blocking tests confirmed that DNP1 needs MD2 and TLR4 to participate in its anti-inflammatory effect. The binding energy of DNP1 to TLR4-MD2 was -7.9 kcal/mol, indicating that DNP1 could bind to the TLR4-MD2 complex stably. Therefore, it is concluded that DNP1 may play an immunomodulatory role by binding to the TLR4-MD2 complex and inhibiting the TLR4-MD2-mediated signaling pathway.
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Affiliation(s)
- Lian Li
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
| | - Hang Chen
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
| | - Guichun Huang
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
| | - Yiyi Lv
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
| | - Li Yao
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
| | - Zhongxia Guo
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
| | - Shuyi Qiu
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
| | - Xiaodan Wang
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
| | - Chaoyang Wei
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China; (L.L.); (H.C.); (G.H.); (Y.L.); (L.Y.); (Z.G.); (S.Q.); (X.W.)
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang 550025, China
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Denagbe W, Covis R, Guegan JP, Robinson JC, Bereau D, Benvegnu T. Structure and emulsifying properties of unprecedent glucomannan oligo- and polysaccharides from Amazonia Acrocomia aculeata palm fruit. Carbohydr Polym 2024; 324:121510. [PMID: 37985095 DOI: 10.1016/j.carbpol.2023.121510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/01/2023] [Accepted: 10/17/2023] [Indexed: 11/22/2023]
Abstract
Acrocomia aculeata fruit pulp contains oil (4.1-82.8 % fresh matter) and carbohydrates (6.6-98.0 % fresh matter). To date, only the oil fraction is valorized because very little is known about the nature of carbohydrates. This study explores new ways of adding value to this pulp by developing simple and efficient extraction processes for its carbohydrate components and characterizing their structure and physicochemical properties over two harvest periods. A water-soluble monosaccharide fraction F1 (solubility limit (SL): 98.5-99.3 g/L) (yield: 21 % dry pulp (DP)), a water-soluble polysaccharide fraction F2 (SL: 93.3-95.3 g/L) (yield: 26 % DP) and two additional water-insoluble polysaccharide fractions F3 and F4 (SL: <8 g/L) (yields: 10 and 19 % DP, respectively) were isolated. NMR structural characterizations of fraction F2 revealed it to be a linear glucomannan with β-(1 → 4) osidic linkages between d-Manp and d-Glcp residues. F2 is unique for its d-Manp/d-Glcp ratio of 3:1 and the position of its acetyl group (13-14 %, C-2 d-Manp). Finally, the polysaccharide showed a molecular weight (Mw) variation ranging from 8.2 × 104 to 1.1 × 103 Da over the two harvest periods, with remarkable emulsifying properties associated with a low Mw of F2 (stability >6 months, 1 % w/v in a water-in-oil emulsion).
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Affiliation(s)
- Wilfried Denagbe
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France; CNRS, ISCR-UMR 6226, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, F-35000 Rennes, France
| | - Rudy Covis
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France
| | - Jean-Paul Guegan
- CNRS, ISCR-UMR 6226, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, F-35000 Rennes, France
| | - Jean-Charles Robinson
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France
| | - Didier Bereau
- Université de Guyane, Laboratoire COVAPAM, UMR QualiSud, Campus universitaire de Troubiran, BP 792, 97337 Cayenne cedex, Guyane, France
| | - Thierry Benvegnu
- CNRS, ISCR-UMR 6226, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes, F-35000 Rennes, France.
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Hui H, Jin H, Yang X, Wang X, Qin B. Fine structure and hypoglycemic effect of a galactoglucan from the bulbs of Lanzhou lily. Int J Biol Macromol 2024; 254:127774. [PMID: 37913881 DOI: 10.1016/j.ijbiomac.2023.127774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/11/2023] [Accepted: 10/27/2023] [Indexed: 11/03/2023]
Abstract
The present research aimed to further identify the fine structure, morphology, and thermal behaviors of a galactoglucan BHP-2 derived from Lanzhou lily bulbs through partial acid hydrolysis, methylation, 2D NMR (1H1H COSY, HSQC, and HMBC), scanning electron microscopy (SEM) and thermogravimetric-differential thermal analysis (TG-DTA). Additionally, the study assessed the potential in vitro hypoglycemic effect of BHP-2 by examining its inhibitory effect on α-glucosidase and α-amylase. The results indicated that the main backbone composition of BHP-2 consisted of →4)-α-D-Glcp-(1→, →3)-β-D-Glcp-(1 → and →6)-β-D-Galp-(1→, while the side chain composition predominantly featured →4)-α-D-Glcp-(1→, →3,5)-α-L-Araf-(1 → and →3)-β-D-Galp-(1→, attached to the C-2 and/or C-3 positions of →4)-α-D-Glcp-(1→. Terminal residues consisted of α-D-Glcp-(1 → and β-L-Araf-(1→. BHP-2 exhibited excellent thermal stability, with a microscopic surface characterized by tightly packed sheets and numerous spiral depressions, which might contribute to its remarkable in vitro hypoglycemic effect. BHP-2 showed competitive inhibition of α-amylase and mixed non-competitive inhibition of α-glucosidase, with respective IC50 values of 0.31 and 0.18 mg/mL, closely resembling to those of acarbose (0.27 and 0.12 mg/mL). These findings suggested that BHP-2 had potential as an additive for glycemic intervention.
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Affiliation(s)
- Heping Hui
- College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo, Shaanxi 726000, PR China
| | - Hui Jin
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Xiaoyan Yang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Xuejun Wang
- College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo, Shaanxi 726000, PR China
| | - Bo Qin
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
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Cao JJ, Lv QQ, Yan Z, Chen HQ. Physicochemical properties and solution conformation of polysaccharides from Toona sinensis (A. Juss) Roem leaves. Int J Biol Macromol 2024; 254:127849. [PMID: 37924899 DOI: 10.1016/j.ijbiomac.2023.127849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/23/2023] [Accepted: 10/31/2023] [Indexed: 11/06/2023]
Abstract
In this study, two polysaccharide fractions (TSP-1 and TSP-2) were isolated from Toona sinensis leaves. The physicochemical properties and solution conformations of TSP-1 and TSP-2 were investigated. DSC and TG results showed that TSP-1 and TSP-2 had thermal stability. The intrinsic viscosities of TSP-1 and TSP-2 solutions were 11.42 and 6.13 mL/g, respectively. Rheological results showed that the viscosities of TSP-1 and TSP-2 solutions were affected by polysaccharide concentration, Ca2+ and extreme pH. Furthermore, TSP-1 exhibited a weak gel behavior at the concentrations of 0.5 %-2.0 %, while TSP-2 showed a weak gel behavior at the concentration of 2 %. HPSEC-MALLS analysis revealed that the Rg values of TSP-1 and TSP-2 were 96.8 nm and 56.2 nm, respectively. Conformation analysis indicated that TSP-1 behaved as a sphere, while TSP-2 behaved like a rigid rod. These results suggest that TSP-1 and TSP-2 can be used as additives in food, pharmaceutical and cosmetic industries.
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Affiliation(s)
- Juan-Juan Cao
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China; School of Food and Biological Engineering, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China
| | - Qing-Qing Lv
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China; School of Food and Biological Engineering, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China
| | - Zheng Yan
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China; School of Food and Biological Engineering, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China
| | - Han-Qing Chen
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China; School of Food and Biological Engineering, Hefei University of Technology, 420 Feicui Road, Hefei, Anhui 230601, PR China.
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Ma R, Zhang M, Yang X, Guo J, Fan Y. Transcriptome analysis reveals genes related to the synthesis and metabolism of cell wall polysaccharides in goji berry (Lycium barbarum L.) from various regions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7050-7060. [PMID: 37340801 DOI: 10.1002/jsfa.12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/06/2023] [Accepted: 06/14/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND In goji berries (Lycium barbarum L.), the cell wall properties and ripening environment affect fruit quality and their economic benefits. However, the mechanism underlying the cell wall remains to be fully elucidated. RESULTS The results showed that total sugar content was higher in Qinghai berries (13.87%, P < 0.01), whereas cellulose content peaked in Zhongning berries (28%, P < 0.05). Arabinose, galactose, and galacturonic acid were the principal components of the cell wall polysaccharides in goji berries. Among them, the content of galactose in Zhongning was significantly the highest (P < 0.05). Interestingly, we found that highly expressed β-glucosidase and lowly expressed endoglucanase led to cellulose accumulation by RNA-sequencing analysis. The expression analysis results suggested that pectate lyase and pectinesterase enzymes could be major factors related to higher galactose and galacturonic acid contents in Zhongning compared to in Qinghai and Gansu. The starch and sucrose metabolism pathway, pentose and glucuronate interconversions pathway, and galactose metabolism pathway played a significant role in cell wall polysaccharide synthesis and metabolism. CONCLUSION In the present study, we aimed to provide some insights into the cell wall on polysaccharide composition, structural features, and gene analysis in goji berries from Zhongning, Qinghai, and Gansu in China. These results might help to clarify the molecular function of the major genes in the cell wall polysaccharides of goji berries and provide a solid foundation for further study. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Ruixue Ma
- School of Food Science and Engineering, Ningxia University, Yinchuan, China
| | - Meng Zhang
- School of Food Science and Engineering, Ningxia University, Yinchuan, China
| | - Xiaohua Yang
- School of Food Science and Engineering, Ningxia University, Yinchuan, China
| | - Jia Guo
- School of Food Science and Engineering, Ningxia University, Yinchuan, China
| | - Yanli Fan
- School of Food Science and Engineering, Ningxia University, Yinchuan, China
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Wang K, Song M, Mu X, Wu Z, Wu N, Zhang Y. Comparison and the lipid-lowering ability evaluation method discussion of Dendrobium officinale polysaccharides from different origins based on principal component analysis. Int J Biol Macromol 2023; 242:124707. [PMID: 37146861 DOI: 10.1016/j.ijbiomac.2023.124707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/07/2023] [Accepted: 04/28/2023] [Indexed: 05/07/2023]
Abstract
As typical acetylated glucomannans, Dendrobium officinale polysaccharides (DOPs) from different origins differ in their structural characteristics and some of their physicochemical properties. To rapidly select D. officinale plants, we systematically investigate the differences among DOPs from different origins and analyzed the structural characteristics, such as the degree of acetylation and monosaccharide composition; the physicochemical properties, such as solubility, water absorption and apparent viscosity; and the lipid-lowering activity of the obtained DOPs. Principal component analysis (PCA), a method for analyzing multiple variables, was used to analyze the relationship between the physicochemical and structural properties, and lipid-lowering activity. It was found that the structural and physicochemical characteristics had significant effects on lipid-lowering activity, and DOPs with a high degree of acetylation, high apparent viscosity and large D-mannose-to-d-glucose ratio were associated with greater lipid-lowering activity. Therefore, this study provides a reference for the selection and application of D. officinale.
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Affiliation(s)
- Kaiping Wang
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Mengzi Song
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Xu Mu
- Hubei Key Laboratory of Nature Medicinal Chemistry and Resource Evaluation, Tongji Medical College of Pharmacy, Huazhong University of Science and Technology, 430030 Wuhan, China
| | - Zhijing Wu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China
| | - Niuniu Wu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China
| | - Yu Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030 Wuhan, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, 430030 Wuhan, PR China.
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Jiang G, Wang B, Wang Y, Kong H, Wang Y, Gao P, Guo M, Li W, Zhang J, Wang Z, Niu J. Structural characteristics of a novel Bletilla striata polysaccharide and its activities for the alleviation of liver fibrosis. Carbohydr Polym 2023; 313:120781. [PMID: 37182941 DOI: 10.1016/j.carbpol.2023.120781] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/19/2023]
Abstract
Liver fibrosis has proven to be the main predisposing factor for liver cirrhosis and liver cancer; however, an effective treatment remains elusive. Polysaccharides, with low toxicity and a wide range of bioactivities, are strong potential candidates for anti-hepatic fibrosis applications. For this study, a new low molecular weight neutral polysaccharide (B. striata glucomannan (BSP)) was extracted and purified from Bletilla striata. The structure of BSP was characterized and its activities for alleviating liver fibrosis in vivo were further evaluated. The results revealed that the structural unit of BSP was likely →4)-β-D-Glcp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-2ace-Manp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-Manp-(1 → 4)-β-D-3ace-Manp-(1→, with a molecular weight of only 58.5 kDa. Additionally, BSP was observed to attenuate the passive impacts of liver fibrosis in a manner closely related to TLR2/TLR4-MyD88-NF-κB signaling pathway conduction. In summary, the results of this study provide theoretical foundations for the potential applications of BSP as an anti-liver fibrosis platform.
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Zhang Y, Yao L, Liu Y, Chen B, Wang C, Gong K, Wang F, Qiao Y. Acidic polysaccharide from corn silk: Structural & conformational properties and hepatoprotective activity. Int J Biol Macromol 2023; 236:123851. [PMID: 36863670 DOI: 10.1016/j.ijbiomac.2023.123851] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/13/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023]
Abstract
This study aimed to investigate the structural characterization, conformational properties, and hepatoprotective activity of corn silk acidic polysaccharide (CSP-50E). CSP-50E with molecular weights of 1.93 × 105 g/mol was composed of Gal, Glc, Rha, Ara, Xyl, Man and uronic acid with a weight ratio of 12:25:1:2:2:5:21. Structural analysis with methylation indicated that CSP-50E mainly contained T-Manp, 4-substituted-D-Galp/GalpA, and 4-substituted-D-Glcp. CSP-50E presented random coils conformation in an aqueous solution based on the analysis of HPSEC. In vitro experiments showed that CSP-50E exhibited significant hepatoprotective effects, CSP-50E reduce IL-6, TNF-α content, and AST, ALT activity to protect ethanol-induced damage liver cells (HL-7702), while the polysaccharide functioned mainly through the caspase cascade and mediate the mitochondrial apoptosis pathway. In this study, we describe a novel acidic polysaccharide from corn silk with hepatoprotective activity that facilitates the development and utilization of corn silk resources.
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Affiliation(s)
- Yi Zhang
- Research Center for Agricultural Products Preservation and Processing, Crop Breeding & Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China
| | - Lianmou Yao
- Research Center for Agricultural Products Preservation and Processing, Crop Breeding & Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China
| | - Yanfang Liu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China
| | - Bingjie Chen
- Research Center for Agricultural Products Preservation and Processing, Crop Breeding & Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China
| | - Chunfang Wang
- Research Center for Agricultural Products Preservation and Processing, Crop Breeding & Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China
| | - Kuijie Gong
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Shandong 250100, PR China
| | - Feng Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Yongjin Qiao
- Research Center for Agricultural Products Preservation and Processing, Crop Breeding & Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, PR China.
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11
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Li H, Wang Y, Zhao P, Guo L, Huang L, Li X, Gao W. Naturally and chemically acetylated polysaccharides: Structural characteristics, synthesis, activities, and applications in the delivery system: A review. Carbohydr Polym 2023; 313:120746. [PMID: 37182931 DOI: 10.1016/j.carbpol.2023.120746] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023]
Abstract
Acetylated polysaccharides refer to polysaccharides containing acetyl groups on sugar units. In the past, the acetylation modification of wall polysaccharides has been a hot research topic for scientists. However, in recent years, many studies have reported that acetylation-modified plant, animal, and microbial polysaccharide show great potential in delivery systems. From the latest perspective, this review systematically presents the different sources of naturally acetylated polysaccharides, the regularity of their modification, the chemical preparation of acetylation modifications, the biological activities and functions of acetylated polysaccharides, and the application in the delivery system. In nature, acetylated polysaccharides are extensively distributed in plants, microorganism, and animals. The level of acetylation modification, the distribution of chains, and the locations of acetylation modification sites differ between species. An increasing number of acetylated polysaccharides were prepared in the aqueous medium, which is safe, environment friendly, and low-cost. In addition to being necessary for plant growth and development, acetylated polysaccharides have immunomodulatory, antioxidant, and anticancer properties. The above-mentioned multiple sources, multifunctional and multi-active acetylated polysaccharides, make them an increasingly important part of delivery systems. We conclude by discussing the future directions for research and development and the potential uses for acetylated polysaccharides.
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12
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Su Y, Li H, Hu Z, Zhang Y, Guo L, Shao M, Man C, Jiang Y. Research on degradation of polysaccharides during Hericium erinaceus fermentation. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2022.114276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Yang HR, Li X, Liu H, Zhao DR, Zeng YJ. Novel polysaccharide from Panax notoginseng with immunoregulation and prebiotic effects. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Guo X, Yang M, Wang C, Nie S, Cui SW, Guo Q. Acetyl-glucomannan from Dendrobium officinale: Structural modification and immunomodulatory activities. Front Nutr 2022; 9:1016961. [PMID: 36245489 PMCID: PMC9558108 DOI: 10.3389/fnut.2022.1016961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
To understand the mechanisms of immunomodulatory effect, Dendrobium Officinale polysaccharides (DOP) were treated by ultrasound and mild base separately to generate fractions of various weight-average molecular weight (Mw) and degrees of acetylation (DA). The structural features, conformational properties, functional properties and immunomodulatory activities of original and modified DOPs were investigated. Ultrasonic treatment decreased the Mw and apparent viscosity and improved the water solubility of DOP. Mild base treatment remarkably reduced the DA and the water solubility, while the overall apparent viscosity was increased. Conformational analysis by triple-detector high performance size-exclusion chromatography showed that the molecular chain of DOP turned more compact coil conformation with decreased DA. Results from the macrophages RAW 264.7 analysis showed that samples sonicated for 200 min (Mw 34.2 kDa) showed the highest immune-regulation effects. However, the immunomodulatory effects of the samples after de-acetylation were all compromised compared to the original DOP. This study inspires further research to establish the structural-immunomodulatory relationships, which promote the application of DOP in both the food and medicine fields.
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Affiliation(s)
- Xiaoyu Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Technology, Tianjin University of Science and Technology, Tianjin, China
| | - Mingguan Yang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Changlu Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Technology, Tianjin University of Science and Technology, Tianjin, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Nanchang University, Nanchang, China
- Shaoping Nie,
| | - Steve W. Cui
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
| | - Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Technology, Tianjin University of Science and Technology, Tianjin, China
- *Correspondence: Qingbin Guo,
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15
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Chen H, Shi X, Zhang L, Yao L, Cen L, Li L, Lv Y, Wei C. Ultrasonic Extraction Process of Polysaccharides from Dendrobium nobile Lindl.: Optimization, Physicochemical Properties and Anti-Inflammatory Activity. Foods 2022; 11:foods11192957. [PMID: 36230031 PMCID: PMC9564065 DOI: 10.3390/foods11192957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
To optimize the ultrasonic extraction process of polysaccharides from Dendrobium nobile Lindl. (DNP), the extraction method was conducted through a single-factor test and the response-surface methodology (RSM). With the optimal extraction process (liquid–solid ratio of 40 mL/g, ultrasonic time of 30 min, and ultrasonic power of 400 W), the maximum extraction yield was 5.16 ± 0.41%. DNP1 and DNP2 were then fractionated via DEAE-QFF and Sephacryl S-300 HR chromatography. The molecular weight (Mw) of DNP1 was identified as 67.72 kDa, composed of Man (75.86 ± 0.05%) and Glc (24.14 ± 0.05%), and the Mw of DNP2 was 37.45 kDa, composed of Man (72.32 ± 0.03%) and Glc (27.68 ± 0.03%). Anti-inflammatory assays results showed that as DNPs were 200 μg/mL, and the contents of NO, TNF-α, IL-1β, IL-6 and IL-10 in LPS-induced RAW 264.7 cells were about 13.39% and 13.39%, 43.88% and 43.51%, 17.80% and 15.37%, 13.84% and 20.66%, and 938.85% and 907.77% of those in control group, respectively. It was indicated that DNP1 and DNP2 inhibited the inflammatory response of RAW 264.7 cells induced by LPS via suppressing the level of NO and pro-inflammatory cytokines (TNF-α, IL-1β and IL-6) and promoting the secretion of anti-inflammatory cytokine (IL-10). Therefore, DNP1 and DNP2 have potential applications in the treatment of inflammatory injury.
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Affiliation(s)
- Hang Chen
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Xueqin Shi
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Lin Zhang
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Li Yao
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Lanyan Cen
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Lian Li
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Yiyi Lv
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Chaoyang Wei
- Key Laboratory of Fermentation Engineering and Biological Pharmacy of Guizhou Province, School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, College of Life Sciences, Guizhou University, Guiyang 550025, China
- Correspondence: ; Tel.: +86-851-88292178
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16
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Ultrasonic disruption effects on the extraction efficiency, characterization, and bioactivities of polysaccharides from Panax notoginseng flower. Carbohydr Polym 2022; 291:119535. [DOI: 10.1016/j.carbpol.2022.119535] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022]
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17
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Li X, Wang X, Wang Y, Liu X, Ren X, Dong Y, Ma J, Song R, Wei J, Yu A, Fan Q, Yao J, Shan D, Zhang Y, Wei S, She G. A Systematic Review on Polysaccharides from Dendrobium Genus: Recent Advances in the Preparation, Structural Characterization, Bioactive Molecular Mechanisms, and Applications. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2022; 50:471-509. [PMID: 35168475 DOI: 10.1142/s0192415x22500185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Dendrobium polysaccharides (DPSs) have aroused people's increasing attention in recent years as a result of their outstanding edible and medicinal values and non-toxic property. This review systematically summarized recent progress in the different preparation techniques, structural characteristics, modification, various pharmacological activities and molecular mechanisms, structure-activity relationships, and current industrial applications in the medicinal, food, and cosmetics fields of DPSs. Additionally, some recommendations for future investigations were provided. A variety of methods were applied for the extraction and purification of DPSs. They possessed primary structures (e.g., glucomannan, rhamnogalacturonan I type pectin, heteroxylan, and galactoglucan) and conformational structures (e.g., random coil, rod, globular, and a slight triple-helical). And different molecular weights, monosaccharide compositions, linkage types, and modifications could largely affect DPSs' bioactivities (e.g., immunomodulatory, anti-diabetic, hepatoprotective, gastrointestinal protective, antitumor, anti-inflammatory, and anti-oxidant activities). It was worth mentioning that DPSs were significant pharmaceutical remedies and therapeutic supplements especially due to their strong immunity enhancement abilities. We hope that this review will lay a solid foundation for further development and applications of Dendrobium polysaccharides.
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Affiliation(s)
- Xiao Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Xiuhuan Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Yu Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Xiaoyun Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Xueyang Ren
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Ying Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Jiamu Ma
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Ruolan Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Jing Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Axiang Yu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Qiqi Fan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Jianling Yao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Dongjie Shan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
| | - Yanfei Zhang
- Shuangjiang Xingyun Biological Technology Co., Ltd, Shenzhen, Guangdong 518000, P. R. China
| | - Shengli Wei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China
| | - Gaimei She
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China.,Beijing Key Laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 102488, P. R. China
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18
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Purification, in-depth structure analysis and antioxidant stress activity of a novel pectin-type polysaccharide from Ziziphus Jujuba cv. Muzaoresidue. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104439] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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19
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Arab K, Ghanbarzadeh B, Ayaseh A, Jahanbin K. Extraction, purification, physicochemical properties and antioxidant activity of a new polysaccharide from Ocimum album L. seed. Int J Biol Macromol 2021; 180:643-653. [PMID: 33744248 DOI: 10.1016/j.ijbiomac.2021.03.088] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 12/19/2022]
Abstract
In this study, a novel polysaccharide fraction from Ocimum album seed was extracted and then purified by Cellulose DEAE-52 and Sephadex G-200 anion exchange chromatography. The structural, physicochemical and antioxidant properties of the main polysaccharide fraction (OAP-1A) were evaluated. The purified polysaccharide contained 94.3% carbohydrate, 3.56% moisture and 2.14% ash and result of gel permeation chromatography (GPC) showed average molecular weight of 593 kDa. The results of high-performance liquid chromatography (HPLC) showed that OAP-1A was a neutral hetero-polysaccharide composed of mannose (35.7%), glucose (33.32%), galactose (19.6%) and rhamnose (11.38%). In addition, GC-MS data, nuclear magnetic resonance (NMR) spectrum and Fourier transform infrared (FT-IR) analysis revealed that the backbone of OAP-1A consists of →3)-β-D-Manp-(1→, →3,4)-β-D-Manp-(1→, →3,6)-β-D-Manp-(1→, →3)-α-D-Glcp-(1→, →6)-β-D-Galp-(1→, →4)-α-L-Rhap-(1→ and α-D-Glcp-(1→. X-ray diffraction (XRD) analysis showed semi-crystalline structure in OAP-1A. Differential scanning colorimeter (DSC) and thermo-gravimetry analysis (TGA) indicated that OAP-1A had relatively high thermal stability. Moreover, OAP-1A showed strong scavenging activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals.
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Affiliation(s)
- Khaled Arab
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran
| | - Babak Ghanbarzadeh
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran; Department of Food Engineering, Faculty of Engineering, Near East University, P. O. Box 99138, Nicosia, Cyprus, Mersin 10, Turkey.
| | - Ali Ayaseh
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran
| | - Kambiz Jahanbin
- Department of Food Science and Technology, Faculty of Agriculture Engineering, Shahrood University of Technology, P.O. Box 361999-5161, Shahrood, Iran
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20
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Li F, Feng KL, Yang JC, He YS, Guo H, Wang SP, Gan RY, Wu DT. Polysaccharides from dandelion (Taraxacum mongolicum) leaves: Insights into innovative drying techniques on their structural characteristics and biological activities. Int J Biol Macromol 2020; 167:995-1005. [PMID: 33188812 DOI: 10.1016/j.ijbiomac.2020.11.054] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 12/14/2022]
Abstract
The aim of this study was to well understand the impacts of innovative drying techniques (radio frequency drying and microwave drying) and traditional drying techniques (vacuum drying, freezing drying, and hot air drying) on the structural characteristics and bioactivities of polysaccharides from dandelion leaves (DLPs). Five different DLPs were obtained from dandelion leaves dried by abovementioned drying techniques. Results showed that the structural characteristics and bioactivities of DLPs varied with different drying techniques. The molecular weights, apparent viscosities, molar ratios of constituent monosaccharide, contents of uronic acids, and contents of bonded polyphenolics in DLPs obtained by different drying techniques had noticeable variations, while the types of constituent monosaccharides and the major glycosidic linkages in DLPs were similar. In addition, results showed that DLPs, especially DLP-RF obtained by the radio frequency drying, exhibited remarkable antioxidant activities (ABTS, DPPH, and NO radical scavenging activities), excellent in vitro antiglycation activity, and obvious in vitro inhibitory activity on α-glucosidase. Results from this study suggest that the radio frequency drying can be used as a potential drying technique before extracting DLPs for applications in the functional food and medicine industries.
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Affiliation(s)
- Fen Li
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China
| | - Kang-Lin Feng
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China
| | - Jian-Chun Yang
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China
| | - Yuan-Shu He
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China
| | - Huan Guo
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China; Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, Sichuan, China
| | - Sheng-Peng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao
| | - Ren-You Gan
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, Sichuan, China.
| | - Ding-Tao Wu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
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21
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Structural characterization of a novel galactoglucan from Fortunella margarita and its molecular structural change following simulated digestion in vitro. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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22
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Gao P, Bian J, Xu S, Liu C, Sun Y, Zhang G, Li D, Liu X. Structural features, selenization modification, antioxidant and anti-tumor effects of polysaccharides from alfalfa roots. Int J Biol Macromol 2020; 149:207-214. [PMID: 31987938 DOI: 10.1016/j.ijbiomac.2020.01.239] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/19/2020] [Accepted: 01/23/2020] [Indexed: 01/15/2023]
Abstract
Hot water extraction and chromatographic purification methods were used to extract and purify two polysaccharides (RAPS-1 and RAPS-2) from the roots of alfalfa. Subsequently, RAPS-2 was modified using the HNO3/Na2SeO3 method to obtain Se-RAPS-2. The structural features, antioxidant and in vitro anti-tumor activities of the three polysaccharides were evaluated. The structural analysis revealed that RAPS-1 (Mw = 10.0 kDa) was composed of rhamnose, xylose, arabinose, galacturonic acid, mannose and glucose, whereas RAPS-2 (Mw = 15.8 kDa) consisted of rhamnose, xylose, galacturonic acid, mannose, glucose and galactose. RAPS-1 contained 1 → 2, 1 → 4, 1 → 3, and 1 → 6 or 1 → glycosidic bonds; however, while RAPS-2 lacked 1 → 4 glycosidic linkages. The molecular weight of Se-RAPS-2 was 11.0 kDa less than that of RAPS-2. The results of activities demonstrated that Se-RAPS-2 displayed superior antioxidant activity and inhibitory effect in HepG2 cells than RAPS-1 and RAPS-2.
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Affiliation(s)
- Pinyi Gao
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China; Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Jun Bian
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Shuangshuang Xu
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Changfeng Liu
- College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Yuqiu Sun
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Gongling Zhang
- College of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang 110142, PR China
| | - Danqi Li
- Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, PR China; Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Shenyang University of Chemical Technology, Shenyang 110142, PR China.
| | - Xuegui Liu
- Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, PR China; National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Shenyang University of Chemical Technology, Shenyang 110142, PR China.
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23
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Tao S, Lei Z, Huang K, Li Y, Ren Z, Zhang X, Wei G, Chen H. Structural characterization and immunomodulatory activity of two novel polysaccharides derived from the stem of Dendrobium officinale Kimura et Migo. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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