湘西北武陵山区毛竹叶总黄酮含量的比较

用乙醇超声波辅助提取法提取毛竹叶总黄酮，并以芦丁为对照，用紫外分光光度计法测定了湘西北5个县市、区（吉首市、古丈县、龙山县、花垣县、永定区）毛竹叶总黄酮质量分数.花垣县毛竹叶黄酮最高为3.49%，龙山县最低1.32%，吉首市、古丈县、永定区的分别为2.54%，3.04%，1.86%.湘西北武陵山区毛竹叶总黄酮含量存在较大的差异，花垣县的毛竹叶开发价值大.

Comparison of the Contents of Total Flavonoids in the Bamboo Leaves from Different Regions in Wuling Moutain Area of the Northwestern Hunan Province

This paper aims at comparing the contents of total flavonoids in the leaves of Phyllostachys heterocycla cv. Pubescens from different regions in Xingxi.Ethanol extraction was used to extract total flavonoids from bamboo leaves,rutin was used as controller and the total flavonoid contents in the leaves of Phyllostachys heterocycla cv. Pubescens from five different regions in Xiangxi(Guzhang，Longshan，Jishou，Huayuan，Yongding) were determined by ultraviolet spectrophotometer.The total flavonoids content in the bamboo leaves from Huayuan was found to be the highest at 3.49%,and that from Longshan was the lowest at 1.32%.The contents of flavonoids in the bamboo leaves from Guzhang,Jishou,Yongding were at 3.04%，2.54%，1.86% respectively.It can be concluded that the contents of total flavonoids in bamboo leaves were different in different regions.Among them,the medical value of bamboo leaves in Huayuan is the highest.