摘要
以狗肝菜为原料,对其中的黄酮、多糖、多酚等功能性成分进行提取,并对其抗氧化活性进行研究。结果表明:狗肝菜中含有丰富的黄酮、多糖和多酚类物质,其含量分别为2.4、180.5mg/g和61.2mg/g(以干基计)。抗氧化实验表明:狗肝菜黄酮、多糖和多酚具有较强的清除DPPH自由基和.OH的能力,对DPPH自由基的清除率分别为76.7%、88.2%和35.8%,对.OH的清除率分别为90.8%、95.7%和80.9%。
Functional components including flavonoids,polysaccharides and polyphenols were isolated from Dicliptera chinensis,and their antioxidant activities were evaluated.The results indicated that Dicliptera chinensis was rich in flavonoids,polysaccharides and polyphenols,of which the contents were 2.4,180.5 mg/g and 61.2 mg/g of dry Dicliptera chinensis（md）,respectively.Moreover,flavonoids,polysaccharides and polyphenols from Dicliptera chinensis had strong free radical scavenging capacity,with respective scavenging rates of 76.7%,88.2% and 35.8% against DPPH free radicals and of 90.8%,95.7% and 80.9% against hydroxyl free radicals.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第13期71-74,共4页
Food Science
基金
广东省科技计划项目(2008A024
200003)
关键词
狗肝菜
黄酮
多糖
多酚
抗氧化活性
Dicliptera chinensis
flavonoids
polysaccharides
polyphenols
antioxidant activity
作者简介
作者简介：李南薇（1982-），女，讲师，硕士，研究方向为食品生物技术。E-mail：linanwei2006@yahoo．com．cn.
