OALib Journal期刊
ISSN: 2333-9721
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凹叶厚朴中具有α-葡萄糖苷酶抑制活性的成分
DOI: 10.3724/SP.J.1145.2009.00796, PP. 796-798
Keywords: 凹叶厚朴,生物碱,α-葡萄糖苷酶,抑制活性
Abstract:
凹叶厚朴是四川省人工栽种的一种用途广泛的常用中药.在发现凹叶厚朴乙醇提取物具有较强的α-葡萄糖苷酶抑制活性基础上,通过活性跟踪,对该提取物进行了分离,发现其中的生物碱显示了较强的抑制活性.通过溶剂萃取、树脂吸附和反复硅胶柱层析等分离方法从凹叶厚朴乙醇提取物中分离得到6个生物碱,用质谱和核磁共振等波谱方法分别鉴定为木兰箭毒碱,木兰花碱,鹅掌楸碱,蕃荔枝碱,罗默碱和lysicamine,并应用小肠α-葡萄糖苷酶模型测定了它们对α-葡萄糖苷酶的抑制作用.其中,番荔枝碱和木兰箭毒碱的抑制活性较好,分别为60%和62%;其它4个生物碱成分活性几乎相当,鹅掌楸碱为46%,罗默碱为51%,lysicamine为49%,木兰花碱为51%.图2参10
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