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１引言 竹叶对人体具有医疗和保健作用，是由于竹叶中的活性物质的功效。竹叶率随竹龄和叶龄的不同而变化，平均为３９％，怎样开始利用竹叶资源，提取其有效活性物质，成为人们研究的重点。本课题以此为出发点，设计正交实验，采用水浴和超声两种方法分别对竹叶中黄酮类物质（
1 Introduction Bamboo leaves on the human body with medical and health effects, is due to the efficacy of the active substance in the leaves. Bamboo leaf rate varies with bamboo age and leaf age, with an average of 39%. How to start using bamboo leaves and extract their active substances has become the focus of research. The subject takes this as a starting point, designing orthogonal experiment, using water bath and ultrasonic two methods respectively on the bamboo leaves flavonoids (