NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2020, Vol. 32 ›› Issue (增刊1): 26-31.

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Study on the antioxidant activity in vitro of crude polysaccharides from six medicinal plants of Cistanche and its adulterants

CHEN Bao-zheng1,2,WANG Jie1,2,HOU Jian-hua1,2,ZHAO De-ping1,MENG Wei-dong3,ZHOU Yu-bi1*   

  1. 1Key Laboratory of Tibetan Medicine Research and Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resource,Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining 810008,China;2University of Chinese Academy of Sciences,Beijing 100049,China;3Qinghai Daokang Agriculture and Animal Husbandry Technology Co.,Ltd.,Dulan 816100,China

  • Online:2020-06-28 Published:2020-07-20

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Abstract:

To initially investigate the antioxidant capacity in vitro of crude polysaccharides from Cistanche(Cistanche deserticola and C. tubulosa) and its adulterants (C. salsa,C. sinensis,C. lanzhouensis and Orobanche cernua),their ability of crude polysaccharides to scavenge DPPH·,·OH,and ABTS· and their total antioxidant capacity (T-AOC) were determined respectively.Simultaneously,the Topsis method was used to comprehensively analyze the antioxidant capacity in vitro of those crude polysaccharides from six medicinal plants.As a result,the order of antioxidant capacity in vitro of their crude polysaccharides was as follows:C. tubulosa> O. cernua> C. deserticola> C. lanzhouensis> C. sinensis> C. salsa.Among them,the antioxidant capacity in vitro of crude polysaccharides from O. cernua and C. lanzhouensis is close to authentic Cistanche.This study comprehensively evaluated the antioxidant capacity in vitro of crude polysaccharides from six medicinal plants of Cistanche and its adulterants,which can provide a significant reference for the comprehensive development of related medicinal plant resources such as Cistanche and its adulterants.

Key words: Cistanche, adulterants, crude polysaccharides, antioxidant capacity

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