食品科学2012，Vol.33Issue(7)：6-10,5.
还原型谷胱甘肽和几种常见二肽抗氧化性的比较研究
Comparison of Antioxidant Activities of Reduced Glutathione and Several Common Dipeptides
摘要
Abstract
The antioxidant activities of reduced glutathione, L-carnosine, N-acetyl-L-camosine, Gly-L-Tyr, L-Ala-Gln and Gly- Gly were measured by various chemical assays, including DPPH radical scavenging assay, ABTS radical scavenging assay, ferrous ion chelating assay and ferric thiocyanate method （for determining the inhibitory activity against linoleic acid peroxidation）. The results showed that all these peptides had antioxidant activity, especially in linoleic acid system for peroxidation inhibitory activity. The antioxidant activity of reduced glutathione and Gly-L-Tyr were similar to those of BHA and VE and better than those of L-carnosine, L-Ala-Gln and Gly-Gly, and N-acetyl-L-camosine had the weakest antioxidant activity. L-Camosine, which contains histidine, was excellent in chelating ferrous ions, and the ability reached 92.51% at the concentration of 1 mg/mL, which was similar to that of EDTA.关键词
还原型谷胱甘肽/二肽/抗氧化性/金属螯合能力Key words
reduced glutathione/dipeptide/antioxidant activity/metal ion chelating分类
轻工纺织引用本文复制引用
胡晓赞,曾茂茂,陈洁..还原型谷胱甘肽和几种常见二肽抗氧化性的比较研究[J].食品科学,2012,33(7):6-10,5.基金项目
国家“973”计划前期研究专项 （）
国家自然科学基金项目（20976071 （）
30972290） （）
