期刊论文

Effects of deep eutectic solvents on the properties and antioxidant activity of polysaccharides from Polygonatum cyrtonema Hua

Wang, F.

中文

食品与发酵工业

0253-990X

2021

47

11

151-157

10.13995/j.cnki.11-1802/ts.026440

湖南省科技计划项目（2016NK2113;2019NK3010-02）；

本校为第一机构

为揭示低共熔溶剂对黄精多糖理化性质和抗氧化活性的影响规律,以多花黄精为原料,分别采用低共熔溶剂和热水提取黄精多糖,对多糖提取率与分子质量、单糖组成等基本性质进行分析,并比较2种方法提取的黄精多糖抗氧化能力和抗糖基化能力的差异。结果表明,采用低共熔溶剂提取黄精多糖,提取率是热水提取的3.40倍,所得多糖分子质量显著大于热水提取,单糖组成也更复杂。2种方法提取的黄精多糖均为吡喃糖,属于酸性多糖。扫描电镜结果显示,由低共熔溶剂提取的黄精多糖为光滑片状结构,而热水所提取的黄精多糖表面粗糙且为碎片状。氧自由基吸收能力、铁离子还原能力、DPPH自由基与ABTS阳离子自由基清除能力4...

The aim of this study was to reveal the influence of extracted polysaccharides with deep eutectic solvents from Polygonatum sibiricum on the properties and antioxidant activity. The Polygonatum cyrtonema Hua (PcH) was taken as raw materials and the polysaccharides were extracted with deep eutectic solvents (DESs) of choline chloride-urea (CCU) and hot water respectively. The extraction yield, properties and bioactivity of the polysaccharides from two methods were compared. The results showed that the yield of polysaccharides extracted with DESs...