摘要
目的:研究了向日葵花盘中水溶性粗多糖的提取工艺及抗氧化性能。方法:采用单因素试验和L9(34)正交试验设计,对多糖提取工艺进行优化,并采用Fenton体系和邻苯三酚自氧化法评价了该提取物的体外抗氧化能力。结果:优化工艺条件为:提取温度95℃、料液比1:20、提取时间4h,向日葵水溶性粗多糖得率为9.73%,其中温度是影响粗多糖提取的重要因素。结论:结果表明向日葵水溶性粗多糖有较好的抗氧化活性。
Objective：To study the optimum extraction and atioxidative activity of polysaccharides from the disc of sunflower.Method：The extraction of the polysaccharides were prepared by L9（34）orthogonal test plan.And antioxidative activity of the extract was evaluated by two systems,hydroxylradical system and pyrogallol autooxidation methods.Result：It was found that the optimum extraction conditions were as follows：extraction temperature 95℃,material-water ratio 1∶20,and extraction time 4h,the rate of extraction was 9.73%,and temperature was an important factor for the extraction rate of the polysaccharides.Conclusion：The polysaccharides from the disc of sunflower were found have strong antioxidant activity.
出处
《生物技术》
CAS
CSCD
北大核心
2010年第2期74-77,共4页
Biotechnology
关键词
向日葵花盘
多糖
提取
抗氧化活性
the disc of sunflower
polysaccharides
extraction
antioxidant activity
