鸡腿菇粗多糖的体外抗氧化性

摘要

In order to evaluate the antioxidant activity in vitro of crude polysaccharides from Coprinus comatus, the DPPH, hydroxyl and superoxide anion radical scavenging activities and reducing power were tested and compared with those of VC. The results showed that crude polysaccharides from Coprinus comatus had good scavenging effect on DPPH and hydroxyl radicals in a dose-dependent manner with high similarity to that of VC. In addition, crude polysaccharides from Coprinus comatus had a certain scavenging effect on superoxide anion radicals and reducing power lower than that of VC. Our study demonstrates that polysaecharides from Coprinus comatus has good antioxidant activity and that their daily ingestion will show effective antioxidant effect in the body.%以VC为对照，探究水提鸡腿菇粗多糖的体外抗氧化性，分别考察其对DPPH自由基，羟自由基（·OH）、超氧阴离子自由基（O2^-·）的清除能力及其还原力。结果表明：鸡腿菇粗多糖对DPPH自由基有着较好的清除效果；对·OH的清除效果也比较明显，与VC的抗氧化能力相当，清除效果随粗多糖质量浓度升高而升高；对O2^-·也有一定的清除效果，但清除效果不明显；鸡腿菇粗多糖具有一定的还原力，其能力低于VC。说明鸡腿菇粗多糖具有较好的抗氧化活性，日常食用能够有效的起到抗氧化的作用。