竹叶椒对α-葡萄糖苷酶的抑制作用及机制研究
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TS201.4

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Study on the Inhibition Against α-glycosidase and Mechanism of Zanthoxylum armature DC.
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    摘要:

    采用体外抑制模型方法评价竹叶椒生物碱对α-葡萄糖苷酶(酵母菌来源、小鼠小肠来源)抑制作用,并采用Lineweaver-Burk双倒数法分析其抑制α-葡萄糖苷酶活性的机制。结果显示,竹叶椒脂溶性生物碱和水溶性生物碱都对α-葡萄糖苷酶有一定的抑制作用。竹叶椒脂溶性生物碱和水溶性生物碱对酵母来源α-葡萄糖苷酶IC50(半数抑制浓度) 分别为(0.73±0.17) mg/mL、(2.74±0.28) mg/mL;脂溶性生物碱对小鼠小肠来源α-葡萄糖苷酶的IC50为(1.94±0.13) mg/mL。动力学研究表明,竹叶椒生物碱提取物对α-葡萄糖苷酶的抑制作用类型为典型的非竞争性抑制。竹叶椒生物碱对α-葡萄糖苷酶有较好的抑制作用,为进一步的开发利用提供强有力的理论依据。

    Abstract:

    Study on the inhibition of alkaloids from Zanthoxylum armatum DC. on α-glucosidase and mechanism. The inhibitory activity of alkaloids from Zanthoxylum armatum against α-glucosidase(from yeast and murine small intestine) were evaluated using vitro model,and the mechanism was analyzed using Lineweaver-Burk double-reciprocal analysis. Our results revealed that fat-soluble and dissoluble alkaloids both had significant inhibition on α-glucosidase,IC50 values for α-glucosidase from yeast were (0.73±0.17) mg/mL、(2.74±0.28) mg/mL,respectively. Ones for α-glucosidase from murine small intestine were (1.94±0.13) mg/mL. Moreover,the results of kinetic studies demonstrated inhibitive mechanism of alkaloids is noncompetition inhibition. The results suggested that alkaloids can effectively inhibit the α- glucosidase,and provide strong rationale for further exploitation and utilization.

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宋彤彤,郭涛,章聚宝,吴鹏法,魏黎阳,谭素北.竹叶椒对α-葡萄糖苷酶的抑制作用及机制研究[J].食品与生物技术学报,2019,38(1):58-63.

SONG Tongtong, GUO Tao, ZHANG Jubao, WU Pengfa, WEI Liyang, TAN Subei. Study on the Inhibition Against α-glycosidase and Mechanism of Zanthoxylum armature DC.[J]. Journal of Food Science and Biotechnology,2019,38(1):58-63.

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  • 在线发布日期: 2019-03-18
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