多糖
化学
单糖
糖醛酸
抗氧化剂
食品科学
糖苷键
淀粉酶
生物化学
酶
作者
Shuang Liu,Long Chen,Wenjuan Duan,Zhaoqing Meng,Hongjing Dong,Xiao Wang
出处
期刊:ACS omega
[American Chemical Society]
日期:2022-12-07
卷期号:7 (50): 46833-46842
被引量:3
标识
DOI:10.1021/acsomega.2c05932
摘要
Two polysaccharides were separately extracted and purified from different types of medicinal slices of Massa Medicata Fermentata (Sheng Massa Medicata Fermentata and Chao Massa Medicata Fermentata). The physicochemical properties of these polysaccharides were studied, including the molecular weight, monosaccharide composition, and glycosidic linkage. Moreover, inhibition of trypsin, α-amylase, and α-glucosidase by the polysaccharides and their antioxidant activity were investigated. Compared with polysaccharides from Sheng Massa Medicata Fermentata, polysaccharides from Chao Massa Medicata Fermentata had a lower molecular weight, higher uronic acid content, and a lower proportion of side chains. Polysaccharides from Sheng Massa Medicata Fermentata displayed stronger trypsin, α-amylase, and α-glucosidase inhibition activity, whereas the antioxidant activity of the polysaccharides from Chao Massa Medicata Fermentata was higher. These results indicated that stir-frying changes the physicochemical properties of the polysaccharides significantly, leading to reduced enzyme inhibition activity and an increase in antioxidant activity. This research provides a guide for the selective application of Massa Medicata Fermentata.
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