Methods: Extracted by EtOH, purified by 732-positive ion exchange resin.
方法：全草粗粉用乙醇提取，强酸型732阳离子树脂交换纯化。
CONCLUSION The EtOH extraction of roasted Perilla seed can inhibit 5-lipoxidase activity.
结论紫苏子醇提取物能够抑制5 -脂氧酶酶活性。
Methods Gimeracil polymorphs were prepared by alkali-acid treatment or recrystallization with EtOH, MeOH, etc.
方法分别以“碱溶-酸析”法或甲醇、 乙醇等有机溶剂重结晶法，制备吉美拉西的多晶型。
The crudes were purified by silica gel chromatograph and the crude peptides were purified by recrystallization using EtOH and H_2O.
反应后得到的粗品用硅胶柱色谱纯化，粗品肽用乙醇和水重结晶。
METHODS The constituents of EtOH extraction from the whole plant of Saussurea involucrata were isolated and purified by repeated column chromatography.
方法对新疆雪莲全草乙醇提取物的各个萃取部位进行反复柱色谱，根据光谱数据和理化性质确定化合物结构。
METHODS The constituents of EtOH extraction from the whole plant of Saussurea involucrata were isolated and purified by repeated column chromatography.
方法对新疆雪莲全草乙醇提取物的各个萃取部位进行反复柱色谱，根据光谱数据和理化性质确定化合物结构。
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