作者:Linlin Jing、Huiping Ma、Pengcheng Fan、Zhengping Jia
DOI:10.1007/s10600-017-1963-x
日期:2017.3
Flavones are a group of plant secondary metabolites with multiple biological properties. In the present study, 5,6,7,8-tetrahydroxyflavone (5,6,7,8-THF) was synthesized and characterized. In vitro antioxidant study, the effect of 5,6,7,8-THF on total antioxidant activity, reducing power, DPPH radical scavenging, ABTS radical scavenging, superoxide radical scavenging, hydroxyl radical scavenging, nitric oxide radical scavenging, and ferrous chelating activities was examined. According to the results, 5,6,7,8-THF showed excellent free radical scavenging effect and reducing power but weak the ferrous chelating activity. In conclusion, 5,6,7,8-THF can be regarded as an excellent source of antioxidants.
黄酮是一类具有多种生物特性的植物次级代谢物。本研究合成并表征了5,6,7,8-四羟基黄酮(5,6,7,8-THF)。在体外抗氧化研究中,考察了5,6,7,8-THF对总抗氧化活性、还原能力、DPPH自由基清除、ABTS自由基清除、超氧自由基清除、羟基自由基清除、一氧化氮自由基清除以及亚铁离子螯合活性的影响。根据结果,5,6,7,8-THF表现出优良的自由基清除效应和还原能力,但亚铁离子螯合活性较弱。总之,5,6,7,8-THF可被视为一种优良的抗氧化剂来源。