食品工业科技2018，Vol.39Issue(9)：33-39,7.DOI:10.13386/j.issn1002-0306.2018.09.007
洋葱皮不同溶剂提取物的体外抗氧化、抑制α-糖苷酶活性研究
Study on antioxidant and inhibition of α-glucosidase activities in vitro of different solvent extracts from onion skin(Allium cepa L.)
刘世馨 1杜咏梅 2侯小东 1刘新民 1付秋娟 1张晓敬1
作者信息
- 1. 中国农业科学院烟草研究所,山东青岛266101
- 2. 中国农业科学院研究生院,北京100081
- 折叠
摘要
Abstract
This study investigated extraction effect of different solvents on total polyphenols,total flavonoids and quercetin and the antioxidant and inhibition of α-glucosidase activities of extracts from onion skin(Allium cepa L.).The active ingredients of purple onion skin as raw material were extracted with water,40％ ～ 100％ ethanol solution,ethyl acetate and petroleum ether respectively.The effects of different solvents on total polyphenols,total flavonoids and quercetin were analyzed.The total reducing power,scavenging DPPH·,ABTS + ·,O2-· and inhibition of α-glucosidase activities of different solvent extracts,which were compared with contents of total polyphenols,total flavonoids and quercetin were determined.Results showed that the highest extraction rate and contents or purity of total phenols,flavonoids and quercetin were determined in 60％ ethanol extracts,which were respectively up to 5.5％,9.87％,3.25％ and (33.12％ ± 0.39％),(59.44％ ± 0.38％),(19.56％ ± 0.14％).The high reducing power,scavenging activities on DPPH·,ABTS + ·,O2-· and inhibition of α-glucosidase activities were determined in 40％ and 60％ ethanol extracts.The correlation between total flavonoids and quercetin contents in onion skin extracts and antioxidant and inhibition of α-glucosidase activities all reached significant or extremely significant level.Actually,the correlation between quercetin contents in extracts and scavenging activities,inhibition of α-glucosidase activities reached the highest level.关键词
洋葱皮提取物/活性成分/抗氧化/抑制α-糖苷酶活性Key words
onion skin extracts/active ingredients/antioxidant activities/inhibition of α-glucosidase activities分类
轻工纺织引用本文复制引用
刘世馨,杜咏梅,侯小东,刘新民,付秋娟,张晓敬..洋葱皮不同溶剂提取物的体外抗氧化、抑制α-糖苷酶活性研究[J].食品工业科技,2018,39(9):33-39,7.
