摘要
采用连苯三酚在碱性溶液中自氧化反应产生超氧阴离子自由基（Ｏ－２·），用邻二氮菲Ｆｅ（Ⅱ）／Ｈ２Ｏ２体系产生羟自由基（·ＯＨ），用分光光度法（波长为３２２ｎｍ和５３６ｎｍ）监测鲜马齿苋水提物和经沸水处理后的马齿苋水提物对Ｏ－２·和·ＯＨ的作用。结果表明：鲜马齿苋水提物对Ｏ－２·的生成有明显的促进作用，对·ＯＨ具有清除作用；沸水处理后的马齿苋水提物对Ｏ－２·和·ＯＨ均有显著的清除作用。
Auto oxidation in alkalcsent solution with the help of pyrogallol can generate O - 2· , and the system of 1, 10 phenathroline Fe(Ⅱ)/H 2O 2 can produce ·OH. Spectropholometry (wave length 322nm and 536nm) was used to observe the effect of fresh purslane aqueous extracts and the purslane aquenous extracts processed by boiling water upon O - 2· and ·OH. The results showed that fresh purslane aqueous extracts could obviously help generate O - 2· and reduce ·OH, and the aqueous extracts of purslane processed by boiling water had a scavenging action on O - 2· and ·OH greatly.
出处
《湖南医科大学学报》
CSCD
1999年第2期133-135,共3页
Bulletin of Hunan Medical University
