E-viri
Recenzirano
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Zou, Yuan‐Feng; Zhang, Yan‐Yun; Zhu, Zhong‐Kai; Fu, Yu‐Ping; Paulsen, Berit S; Huang, Chao; Feng, Bin; Li, Li‐Xia; Chen, Xing‐Fu; Jia, Ren‐Yong; Song, Xu; He, Chang‐Liang; Yin, Li‐Zi; Ye, Gang; Lv, Cheng; Yin, Zhong‐Qiong
Journal of the science of food and agriculture, April 2021, 2021-Apr, 2021-04-00, 20210401, Letnik: 101, Številka: 6Journal Article
BACKGROUND Codonopsis pilosula and C. tangshen are both plants widely used in traditional Chinese medicine. Polysaccharides, which are their primary active components, are thought to be important in their extensive use. In this study, two neutral polysaccharide fractions of C. pilosula (CPPN) and C. tangshen (CTPN) were obtained by fractionation on a DEAE–Sepharose column and characterized. RESULTS It was confirmed that the neutral polymers CPPN and CTPN were β‐(2,1)‐linked inulin‐type fructans with non‐reducing terminal glucose, and degree of polymerization (DP) of 19.6 and 25.2, respectively. The antioxidant and prebiotic activities in vitro were assayed based on IPEC‐J2 cell lines and five strains of Lactobacillus. Results indicated that the effects of CPPN and CTPN were increased antioxidant defense in intestinal epithelial cells through enhanced cell viability, improved expression of total antioxidant capacity, glutathione peroxidase, superoxide dismutase and catalase, and reduced levels of malondialdehyde and lactic dehydrogenase. The prebiotic activity of CPPN and CTPN was demonstrated by the promoting effect on Lactobacillus proliferation in vitro. The different biological activities obtained between the two fractions are probably due to the different DP and thus molecular weights of CPPN and CTPN. CONCLUSION The inulin fractions from C. pilosula and C. tangshen were natural sources of potential intestinal antioxidants as well as prebiotics, which will be valuable in further studies and new applications of inulin‐containing health products. © 2020 Society of Chemical Industry
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