Antioxidant and immunomodulatory activities in vitro of polysaccharides from bee collected pollen of Chinese wolfberry
文献类型： 外文期刊
作者： Zhou, Wangting 1 ; Zhao, Ya 1 ; Yan, Yamei 2 ; Mi, Jia 2 ; Lu, Lu 2 ; Luo, Qing 2 ; Li, Xiaoying 2 ; Zeng, Xiaoxiong 1 ; Cao 1 ;
作者机构： 1.Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Jiangsu, Peoples R China
2.Ningxia Acad Agr & Forestry Sci, Inst Wolfberry Engn Technol, Yinchuan 750002, Ningxia, Peoples R China
3.Natl Wolfberry Engn Res Ctr, Yinchuan 750002, Ningxia, Peoples R China
关键词： Bee collected pollen of Chinese wolfberry; Polysaccharides; Antioxidant activity; Immunostimulatory activity
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）
ISSN： 0141-8130
年卷期： 2020 年 163 卷
页码：
收录情况： SCI
摘要： China is a larger apiculture producer in the world and more than 120 million kg of bee collected pollens of Chinese wolfberry (WBP) are produced per year. However, the lack of knowledge of the nutritional benefits of WBP limits the use of this natural product in food industry. In the present study, three polysaccharides (WBPPS-1, WBPPS-2 and WBPPS-3) were obtained by ion-exchange chromatography, and their preliminary structures, antioxidant and immunomodulatory activities were investigated. The results showed that WBPPS-1, WBPPS-2 and WBPPS-3 were composed of mannose, rhamnose, galacturonic acid, glucose, galactose, xylose and arabinose with different ratio and their average molecular weights were 1016.3, 878.7 and 901.6 KDa, respectively. In addition, the contents of zinc were far higher than other trace elements in the three polysaccharides, suggesting these polysaccharides probably be polysaccharides-zinc complex. Moreover, WBPPS-3 exhibited stronger scavenging activities on 2,2'-azinobis-(3-ethyl-benzothiazolin-6-sulfonic acid) and 1,1-diphenyl-2-picrylhydrazyl radicals than WBPPS-1 and WBPPS-2. Likewise, WBPPS-3 exhibited a superior enhanced effect on secretion of nitric oxide, tumor necrosis factor-alpha, interleukin-1 beta and interleukin-6 in RAW264.7 cells than other two polysaccharides. Overall, these results suggest that WBPPS-3 has potential to be developed as antioxidant and immunomodulatory ingredients in functional foods, but further animal or clinical studies are required. (C) 2020 Elsevier B.V. All rights reserved.
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