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从壳斗科植物甜茶 (LithocarpuspolystachyusRend)中分离出具有抑制活化透明质酸酶的有效成份 ,经酸水解重结晶 ,鉴定证实该有效成份为二氢查尔酮葡萄糖苷
From the Fagaceae plant sweet tea (Lithocarpus polystachyusRend) isolated active ingredient with inhibition of activated hyaluronidase, acid hydrolysis and recrystallization, identification confirmed that the active ingredient is dihydrochalcone glucoside