Issue 46, 2020

Co-cultured Lepista sordida and Pholiota nameko polysaccharide-iron(iii) chelates exhibit good antioxidant activity

Abstract

In the present study, the structural characteristics and antioxidant activities of polysaccharide from the co-cultured Lepista sordida and Pholiota nameko and its polysaccharide-iron(III) chelates were determined. Two polysaccharide fractions named CP-1 and CP-3 were isolated previously from polysaccharide of the fermentation liquid of the co-cultured Lepista sordida and Pholiota nameko. And their chemical structures were measured by FT-IR infrared spectroscopy, TG analysis, X-ray diffraction and 1H NMR spectroscopy. The results suggested that polysaccharides were chelated with iron(III) by –OH and –COOH groups, forming a stable structure of β-FeOOH and improving crystallinity. Furthermore, the antioxidant activities of polysaccharide-iron(III) chelates exhibited stronger hydroxyl radical and superoxide radical scavenging activity than the polysaccharides. Therefore, the polysaccharide-iron(III) chelates could be used as a potential iron supplement.

Graphical abstract: Co-cultured Lepista sordida and Pholiota nameko polysaccharide-iron(iii) chelates exhibit good antioxidant activity

Supplementary files

Article information

Article type
Paper
Submitted
11 Apr 2020
Accepted
18 Mai 2020
First published
22 Jul 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 27259-27265

Co-cultured Lepista sordida and Pholiota nameko polysaccharide-iron(III) chelates exhibit good antioxidant activity

S. Yu, J. Jiang and W. Li, RSC Adv., 2020, 10, 27259 DOI: 10.1039/D0RA03258A

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