2. Academic Validation
  3. Structural characterization of polysaccharides with potential antioxidant and immunomodulatory activities from Chinese water chestnut peels

Structural characterization of polysaccharides with potential antioxidant and immunomodulatory activities from Chinese water chestnut peels

  • Carbohydr Polym. 2020 Oct 15;246:116551. doi: 10.1016/j.carbpol.2020.116551.
Fanke Zeng 1,  Wenbo Chen 1,  Ping He 1,  Qiping Zhan 1,  Qian Wang 1,  Hui Wu 2,  Mengmeng Zhang 3
Affiliations

Affiliations

  • 1 College of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province 510640, China.
  • 2 College of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province 510640, China. Electronic address: fehwu@scut.edu.cn.
  • 3 College of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province 510640, China. Electronic address: zhangmengmengscut@126.com.
PMID: 32747236 DOI: 10.1016/j.carbpol.2020.116551
Abstract

Chinese water chestnut peels are a kind of vegetable processing waste containing many active components such as Polysaccharides, the structure of which remains unknown. To elucidate the structure of Polysaccharides from Chinese water chestnut peels, two Polysaccharides named WVP-1 and WVP-2 were isolated. WVP-1 (3.16 kDa) consisted of mannose (1.75 %), glucose (84.69 %), galactose (6.32 %), and arabinose (7.24 %), while WVP-2 (56.97 kDa) was composed of mannose (3.18 %), rhamnose (1.52 %), glucuronic acid (1.42 %), galacturonic acid (4.83 %), glucose (11.51 %), galactose (36.02 %), and arabinose (41.53 %). Linkage and NMR data indicated that WVP-1 was composed mainly of →4)-α-d-Glcp(1→ and a certain proportion of →3)-β-d-Glcp-(1→, including linear and branched Polysaccharides simultaneously. WVP-2 was a pectin-like polysaccharide with →4)-α-d-GalpA6Me-(1→ units and the branch points of →3,4)-α-l-Arap-(1→, →3,6)-β-d-Galp-(1→. WVP-2 exhibited stronger potential antioxidant and immunomodulatory activities than WVP-1 in vitro. These results provide a foundation for the further study of Polysaccharides from Chinese water chestnut peels.

Keywords

Antioxidant activity; Chinese water chestnut peels; Immunomodulatory activity; Polysaccharides; Structural features.

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