摘要
目的:分析测定不同采收期桑叶的总黄酮含量,为桑叶资源的利用提供科学依据。方法:以甲醇为溶剂,采用索氏提取及分光光度法测定桑叶中总黄酮。结果:由测定结果得知9月23日采收的桑叶总黄酮含量最高为7.29%。结论:不同采收期桑叶总黄酮含量变化差异较大,在桑叶开发及利用时应注意采收期对总黄酮含量的影响。
Objective： To determine the contents of total flavonoids of mulberry leaves in the different growth stages, and provide the scientific evidence for the better exploit and utilize the leaves. Method： Using Soxhlet method and extract with methanol for the leaves then determine the total flavone by pectrophotometry. Results： The total flavonoid content measured was the highest （7.29%） in the leaves on September 20. Conclusion： The differences of the total flavonoid content of mulberry leaves among different growth stages were very significant, and the collecting time must be considered when we utilize them.
出处
《中国民族民间医药》
2008年第8期44-45,共2页
Chinese Journal of Ethnomedicine and Ethnopharmacy
关键词
桑叶
总黄酮
分光光度法
Mulberry leaves
Total flavonoid
Speetrophotometry
