申请人:KING SAUD UNIVERSITY
公开号:US10300100B1
公开(公告)日:2019-05-28
The extract of Vicia faba beans is prepared by soaking beans in distilled water overnight and then boiling in a water bath to reduce the volume of aqueous extract, which is then homogenized and filtered. The filtrate is concentrated to a smaller volume, lyophilized, and powdered. The lyophilized powder is extracted with hexane to remove oils and lipids. The oil-free lyophilized powder is dissolved in ethanol solvent and extracted for eight hours under reflux, and filtered. The volume of ethanol is reduced by a rotary evaporator, and a first off-white precipitate (sample A-1) is collected, washed with ethanol, and dried at 80° C. Mass spectrometry shows a molecular weight of 200.16447 g mol−1, and an empirical formula of C9H16N2O3 is assigned. Intraperitoneal injection of mice with 50 mg/kg of A-1 twenty minutes prior to injection with strychnine protected the mice from strychnine-induced convulsions to the same extent as phenobarbitone (phenobarbital).
蚕豆提取物的制备方法是将蚕豆在蒸馏水中浸泡过夜,然后在水浴中煮沸,以减少水提取物的体积,然后将其均质化并过滤。滤液浓缩至较小体积,冻干并制成粉末。冻干粉用正己烷萃取,去除油脂。将不含油的冻干粉溶解在乙醇溶剂中,在回流条件下萃取 8 小时,然后过滤。用旋转蒸发仪减少乙醇的体积,收集第一种灰白色沉淀物(样品 A-1),用乙醇洗涤并在 80°C 下干燥。在给小鼠注射马钱子前 20 分钟,腹腔注射 50 毫克/千克的 A-1,可使小鼠免受马钱子引起的惊厥,其保护程度与苯巴比妥(phenobarbitone)相同。