Antioxidant activities of tilapia (Oreochromis niloticus) protein hydrolysates-iron chelate based on properties of biological materials
文献类型： 外文期刊
作者： Hu, Xiao 1 ; Ma, Sairui 1 ; Wu, Yanyan 1 ; Li, Laihao 1 ; Yang, Xianqing 1 ; Hao, Shuxian 1 ; Chen, Shengjun 1 ; Lin, Wan 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab Aquat Prod Proc, Minist Agr, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
2.Chinese A
关键词： tilapia (Oreochromis niloticus);hydrolysates;chelate;antioxidant activities
期刊名称：ADVANCED RESEARCH ON STRUCTURE, MATERIALS AND ENGINEERING II
ISSN： 1022-6680
年卷期： 2013 年 700 卷
页码：
收录情况： SCI
摘要： Tilapia (Oreochromis niloticus) protein was hydrolysed by papain, and then the tilapia (Oreochromis niloticus) protein hydrolysates (TPH) chelated with ferrous ions at various mass ratios of TPH to FeCl2 (5:1, 10:1 and 20:1) to obtain the biological materials of chelate I, chelate II and chelate III, respectively. The ferrous-binding rate and antioxidant activities of the chelates were investigated. It was found that the ferrous-binding rate increased with the increase of mass ratios (TPH/FeCl2) from 5:1 to 20:1. The DPPH radical scavenging activity and reducing power activity of chelate III were highest in the chelates, and the lipid peroxidation inhibition activity of the chelate III was obviously higher than that of TPH. Compared with TPH, marked changes in microstructure were observed in the biological material of TPH-iron chelate.
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