【摘要】 研究了以70%乙醇溶液为溶剂提取苦丁茶叶中黄酮类化合物的方法,讨论了影响提取总黄酮的各种因素,并得出了提取的最佳工艺条件:在70℃条件下用6倍于叶重体积的70%乙醇溶液加热提取3次,每次40min,苦丁茶叶中总黄酮提取率可达2.640%。更多还原

【Abstract】 The method for withdrawing the flavonoid compound inside the Ilicls Follum leaf with 70% alcohol is studied, and the various factors which affect the withdrawing of the total flavonoid are discussed, thus getting the best conditions for withdrawing are: under the condition of 70℃, 70% alcohol 6 times the volume of the leaf weight is used for extraction by heating for three times (40 min for each time), the withdrawing rate of Ilicls Follum leaf can amount to 2.640%.更多还原