常见药食植物提取物体外抗氧化活性的评价

Evaluation on Antioxidant Activities of Extracts from Common Edible and Medicinal Plants in vitro

本实验选用普鲁士兰法、邻二氮菲-Fe2+氧化法、光照核黄素-氮蓝四唑(NBT)法和DPPH.(1,1-Diphenyl-2-Picryl-Hydrazyl)法四种常用的体外抗氧化活性评价方法,以蒸馏水、80%乙醇和乙酸乙酯作为样品提取剂,对27种常见的植物原料的抗氧化能力进行全面的比较分析。结果表明,不同植物体外抗氧化能力差别较大,同种植物对不同抗氧化能力也存在一定差异,而同一植物的三种提取物在同一个抗氧化评价指标上也有差距。

Four evaluation methods of antioxidants in vitro such as prussian blue spectrophotometry measure,1,10-phenanthroline-Fe2+ oxidative assay,riboflavin photodegradation-NBT reduction method and DPPH.method were used to evaluate the antioxidant activities of distilled water,80% ethanol and ethyl acetate extracts of 27 plant samples.The results showed that all the extracts has strong antioxidant activity.However,their antioxidant activities show significant discrepancy,having close relations with extraction solv...