Disclosed is a kaempferol preparing method comprising isolating kaempferol from kaempferol glucosides using an acid, a base, an enzyme or a microbe producing the enzyme. More specifically, the method comprises obtaining a plant extract containing kaempferol glycosides from a plant using water or an organic solvent; and hydrolyzing the plant extract using an acid, a base, an enzyme or a microbe producing the enzyme to isolate kaempferol. The kaempferol glycosides comprise camelliaside A or camelliaside B. The plant extract is derived from a seed or leaf of green tea. When using the method of the invention, it is possible to mass-produce kaempferol, which is one of main physiological activating ingredients, from a plant, particularly a seed or leaf of green tea.
本发明揭示了一种卡培
菲醇制备方法,包括使用酸、碱、酶或产生该酶的微
生物从卡培
菲醇
葡萄糖苷中分离出卡培
菲醇。具体而言,该方法包括使用
水或有机溶剂从植物中获取含有卡培
菲醇糖苷的
植物提取物,并使用酸、碱、酶或产生该酶的微
生物水解
植物提取物以分离出卡培
菲醇。卡培
菲醇糖苷包括山茶苷A或
山茶苷B。该
植物提取物来源于绿茶的种子或叶子。使用本发明的方法,可以从植物,特别是绿茶的种子或叶子中大规模生产卡培
菲醇,这是主要的生理活性成分之一。