食品科学 ›› 2011, Vol. 32 ›› Issue (5 ): 108-110.doi: 10.7506/spkx1002-6630-201105024

• 基础研究 • 上一篇    下一篇

蜂胶乙醇提物对α-葡萄糖苷酶的抑制作用

张红城1,孙庆申2,王光新1,3,由英杰2,董 捷1,*   

  1. 1.中国农业科学院蜜蜂研究所 2.黑龙江大学生命科学学院  3.南京农业大学食品科技学院
  • 收稿日期:2010-06-30 修回日期:2011-02-14 出版日期:2011-03-15 发布日期:2011-03-03
  • 通讯作者: 张红城 E-mail:zzhc@sohu.com
  • 基金资助:
    国家现代农业(蜂)产业技术体系资助项目(NYCYTX-43);国家公益性行业(农业)科研专项经费项目(nyhyzx07-041)

Inhibitory Effect of Ethanol Extract from Propolis onα-Glucosidase

ZHANG Hong-cheng1,SUN Qing-shen2,WANG Guang-xin1,3,YOU Ying-jie2,DONG Jie1,*   

  1. 1. Bee Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100093, China;2. College of Life Science,
    Heilongjiang University, Harbin 150080, China;3. College of Food Science and Technology, Nanjing Agricultural University,
    Nanjing 210095, China
  • Received:2010-06-30 Revised:2011-02-14 Online:2011-03-15 Published:2011-03-03
  • Contact: ZHANG Hong-cheng E-mail:zzhc@sohu.com

摘要: 为了研究蜂胶对餐后血糖控制机理,本实验采用体外α-葡萄糖苷酶抑制模型研究蜂胶乙醇提取物对α-葡萄糖苷酶的抑制作用,并采用Lineweaver-Burk双倒数法研究其动力学性质。结果表明,蜂胶乙醇提取物对α-葡萄糖苷酶的半数抑制浓度(IC50)为(0.8260±0.1754)mg/mL,抑制常数(KI)为(0.0265±0.0060)mg/mL。动力学研究表明,蜂胶乙醇提取物对α-葡萄糖苷酶的抑制作用为典型的非竞争性抑制。

关键词: 蜂胶, α-葡萄糖苷酶, 非竞争抑制

Abstract: In order to explore the mechanism by which propolis controls postprandial blood glucose, the inhibitory effect of ethanol extract from propolis (EEP) on α-glucosidase was evaluated by using α-glucosidase inhibition model in this paper. Inhibitory kinetic parameters were determined by Lineweaver-Burk plot. The results indicated that the median inhibitory concentration (IC50) of EEP was (0.8260 ± 0.1754) mg/mL and the inhibition constant (KI) was (0.0265 ± 0.0060) mg/mL. Kinetic analysis showed that the inhibitory mechanism of EEP on α-glucosidase was a typical noncompetitive inhibition. Therefore, propolis seems to be a healthy food choice for the adjustment of blood glucose.

Key words: propolis, α-glucosidase, noncompetitive inhibition

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