食品科学 ›› 2010, Vol. 31 ›› Issue (15): 163-166.doi: 10.7506/spkx1002-6630-201015035

• 基础研究 • 上一篇    下一篇

油菜蜂花粉ACE抑制活性酶解物的制备及分离

李天娇1,徐 响1,2,孙丽萍1,2,*,董 捷1,2   

  1. 1.中国农业科学院蜜蜂研究所 2.国家农产品加工技术研发中心蜂产品分中心
  • 收稿日期:2010-05-31 出版日期:2010-08-15 发布日期:2010-12-29
  • 通讯作者: 孙丽萍 E-mail:caasun@126.com
  • 基金资助:

    农业部公益性行业(农业)科研专项经费(nyhyzx07-041);农业部现代农业蜂产业技术体系建设专项资金(NYCYTX-43);
    中国农业科学院科研经费项目

Preparation and Separation of ACE Inhibitory Hydrolysates from Rape Bee Pollen

LI Tian-jiao1,XU Xiang1,2,SUN Li-ping1,2,*,DONG Jie1,2   

  1. 1. Bee Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100093, China;
    2. Branch Center of Bee Production, National R&D Center for Agro-Food Processing, Beijing 100093, China
  • Received:2010-05-31 Online:2010-08-15 Published:2010-12-29
  • Contact: SUN Li-ping1 E-mail:caasun@126.com

摘要:

采用4 种蛋白酶水解油菜蜂花粉蛋白制备ACE 抑制活性物质,高效液相色谱法测定油菜蜂花粉蛋白水解物对ACE 的抑制率。结果表明:油菜蜂花粉蛋白酶水解物具有ACE 抑制活性,水解物对ACE 的抑制活性差异显著(P < 0.05),其中碱性蛋白酶>中性蛋白酶>木瓜蛋白酶>酸性蛋白酶,碱性蛋白酶水解物的IC50 为0.35mg/mL。4 种蛋白酶水解物经Bio P-2 凝胶分离后,ACE 抑制活性较强的组分主要集中在保留时间70~120min,在此区间碱性蛋白酶水解物分离组分对ACE 的抑制率达到90% 以上,分子质量在376.4~1355D 之间。

关键词: 油菜蜂花粉蛋白, 碱性蛋白酶酶解物, ACE抑制活性

Abstract:

Four kinds of proteases were used for rape bee pollen protein enzymolysis to prepare ACE inhibitory activity hydrolysates. The ACE inhibitory activity (IC50) of enzymatic hydrolysates was determined by HPLC method. The results indicated that four hydrolysates prepared with different proteases had significantly different ACE inhibitory activities (P < 0.05). The strongest ACE inhibitory activity was observed in alkaline protease derived hydrolysate, with an IC50 of 0.35 mg/mL, followed by neutral protease, papain and acid protease derived hydrolysates. Furthermore, four rape bee pollen protein hydrolysates were applied to a Bio P-2 gel column for fractionization. Fractions with a retention time ranging from 70 to 120 min presented stronger ACE inhibitory activity and statistical analysis showed that their ACE inhibition inhibitory ratios were significantly different (P<0.05). All of the corresponding fractions separated from alkaline protease derived hydrolysate had more than 90% ACE inhibitory ratio, and their molecular weight distribution varied from 376.4 to 1355 D.

Key words: rape bee pollen protein, protease hydrolysates, ACE inhibitory activity

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