用饱和石灰水浸提,盐酸沉淀,水洗,石油醚回流除色素等杂质,甲醇重结晶三次,所得橙皮甙晶体的理化指标达到了纯品标准。 It was extracted with saturated lime water, precipitated with hydrochloric acid, washed with water, and impurities such as pigments were removed by refluxing with petroleum ether. Methanol was recrystallized three times and the physical and chemical indexes of the orange peel crystals reached the pure product standard.