Preparation and Antioxidant Activity of Phosphorylated Polysaccharides from Russula Alutacea Fr.

Yan Zhao, Xiaoning Li, Ting Chen, Qinyan Tang, Lianying Qiu, Baijuan Wang, Qingsong Yang

Ekoloji, 2018, Issue 105, Pages: 17-22, Article No: e105003


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As a large amount of alkali-soluble polysaccharides is present in Russula alutacea Fr., their insolubility limits their application. Chemical modification can improve the solubility of natural polysaccharides to enhance their activities, and enlarge their application range. In this study, water-soluble polysaccharides of Russula alutacea Fr. were modified by phosphoric-acid esterification reaction. The antioxidant activity and structural properties of modified and unmodified polysaccharides were measured. The scavenging ability of hydroxyl radical, superoxide anion and DPPH radical scavenging were analyzed and the properties of the modified and unmodified polysaccharides comprehensively compared. The results showed that antioxidant activity of the phosphorylated polysaccharides was higher than that of unmodified polysaccharides from Russula alutacea Fr.


Russula alutacea Fr., polysaccharides, antioxidation, reducibility


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