罗非鱼水解蛋白金属离子螯合物的抑菌活性研究

王子怀; 胡晓; 李来好; 杨贤庆; 郝淑贤; 吴燕燕; 陈胜军; 岑建伟

doi:10.13386/j.issn1002-0306.2014.08.008

罗非鱼水解蛋白金属离子螯合物的抑菌活性研究

1. 中国水产科学研究院南海水产研究所农业部水产品加工重点实验室国家水产品加工技术研发中心
2. 上海海洋大学食品学院
3. 中国科学院南海海洋研究所

基金项目:

国家自然科学基金(31301454)； “十二五”国家科技支撑计划项目(2012BAD28B06)；国家农业科技成果转化资金项目(2010GB23260577,2010GB2E000335)；国家现代农业产业技术体系(CARS-49)；广东省科技计划重点项目(2011A020102005)；广东省海洋渔业科技推广专项(A201101C01)；中央级公益性科研院所基本科研业务费专项资金项目(2011TS01)；

详细信息

作者简介:
王子怀 (1988-) , 男, 硕士研究生, 研究方向:食品科学与工程。;

中图分类号: TS254.1
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出版历程
- 收稿日期: 2013-06-16

Antibacterial activity of tilapia protein hydrolysates chelated with metal ions

South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, National R&D Center for Aquatic Product Processing
College of Food Science and Technology, Shanghai Ocean University
South China Sea Institute of Oceanology, Chinese Academy of Sciences

摘要

摘要: 罗非鱼肉蛋白经木瓜蛋白酶水解后分别与CaCl2、FeCl2按质量比(水解物∶金属盐)为5∶1、10∶1、20∶1进行螯合,研究并比较了罗非鱼水解蛋白钙、亚铁离子螯合物的抗菌活性。结果表明:钙、亚铁离子与水解物的螯合率随着水解物与金属盐质量比的升高而逐渐增大;氨基酸分析表明罗非鱼肉蛋白水解物中具有金属螯合活性的氨基酸含量较高,其占总氨基酸含量的34.59%;抑菌实验显示得到的螯合物对枯草芽孢杆菌、大肠杆菌、金黄色葡萄球菌的生长表现出明显的抑制作用,其中以5∶1质量比得到的亚铁离子螯合物的抑菌活性最高。
- 罗非鱼水解蛋白 /
- 金属离子螯合物 /
- 抑菌活性
Abstract: Tilapia meat protein was hydrolyzed by papain and then the hydrolysates were chelated with CaCl2and FeCl2at the mass ratio (hydrolysate:mineral salt) of 5∶1, 10∶1 and 20∶1, respectively. The antibacterial activity of the chelates was investigated. The result showed that the chelation rates were gradually increased with the increasing of the mass ratio. Amino acids analysis indicated that tilapia meat protein-hydrolysates had high content of chelating amino acids which accounted for 34.59% of total amino acid. Finally, antibacterial test showed that some chelates obtained under the certain conditions had significant antibacterial activity against Bacillus subtilis, Escherichia coli, and Staphylococcus aureus. The hydrolysate-ferrous ion chelate, which was obtained under the mass ratio of 5∶1, had the highest antibacterial activity against the three indicator bacterium.
- tilapia protein hydrolysates /
- metal ion chelating /
- antibacterial activity

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