摘要
对蜈蚣草总黄酮的最佳提取工艺条件及其抗氧化性进行研究。采用微波辅助提取,通过单因素和正交实验确定蜈蚣草总黄酮的最佳提取工艺;以对羟基自由基的清除率为指标,分析提取液的抗氧化性。最佳提取条件为:微波时间是5 min,微波功率为700 W,微波压强为0.5 MPa,料液比为1∶35。在此条件下,黄酮的提取率为14.576%。蜈蚣草黄酮提取液有很好的清除羟基自由基作用。结论:蜈蚣草总黄酮含量高,且具有抗氧化性,有很好的开发利用前景。
The aim of this study is to develop an easy and efficient microwave--assisted extraction process to extract the antioxidative substrate from Chinese brake（Pteris vittata L）. The optimal process parameters were determined by single and orthogonal experiments and listed as follows： 700 w of microwave power, 5 min of microwave time,0.5 MPa of microwave pressure and the material/solvent ratio of 1 ： 35. With those optimum conditions, the content of the extracted total flavonoids was achieved at 14. 576%. Furthermore, the extracts was proven to be scavenged 64.04% of hydroxyl radical.
出处
《食品与生物技术学报》
CAS
CSCD
北大核心
2009年第5期623-626,共4页
Journal of Food Science and Biotechnology
基金
广东省自然基金项目(8185009001000029)
关键词
蜈蚣草
黄酮
微波消解
抗氧化
ladder brake, flavonoids,microwave,antioxidative activity
