Antioxidative Activities of Oxindole-3-acetic Acid Derivatives from Supersweet Corn Powder
作者:Naoki MIDOH、Akihito TANAKA、Makiko NAGAYASU、Chie FURUTA、Katsuya SUZUKI、Takeshi ICHIKAWA、Takashi ISOMURA、Kenzo NOMURA
DOI:10.1271/bbb.100124
日期:2010.9.23
The components contributing to the antioxidative activity of supersweet corn powder (SSCP), which is commonly used in corn soup and snacks in Japan, were clarified and the effects investigated. 7-(O-β-Glucosyloxy)oxindole-3-acetic acid (GOA) was found to be the component most strongly contributing to the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity of the 80% ethanol extract of SSCP
澄清了在日本玉米汤和小吃中常用的超甜玉米粉(SSCP)的抗氧化活性成分,并研究了其效果。发现7-(O-β-葡糖基氧基)吲哚-3-乙酸(GOA)是最有力地促进80%乙醇的1,1-二苯基-2-吡啶并肼基(DPPH)自由基清除活性的成分证实了SSCP的提取物及其糖苷配基7-羟基-羟吲哚-3-乙酸(HOA)的存在。GOA和HOA分别对80%的SSCP乙醇提取物的DPPH自由基清除活性贡献了35.1%和10.5%。口服给予500和1500 mg / kg的HOA的小鼠血浆中的硫代巴比妥酸反应性物质(TBARS)的水平显着低于溶媒治疗的对照组(p <0.05)。