Mineral ion binding activity of hydrolysates from Tilapia muscle andantioxidant activities of combinations

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  • 1(Key Laboratory of Aquatic Producut Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences, Guangzhou 510300, China) 2(College of Food Science and Engineering, Shanghai Ocean University, Shanghai 201306, China) 3(Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou 510300, China)

Online published: 2018-07-04

Abstract

The enzymatic hydrolysis from Tilapia meat treated by trypsin, mineral ion binding activities and the antioxidant activities were investigated.The results showed that the hydrolyzates (DH=7.41) had the highest mineral ion binding activity.Its Ca2+ combination rate was 78.71%, Fe2+ combination rate was 73.84%, and Zn2+ combination rate was 71.09%.The combinations exhibited some antioxidant capacity.The Ca2+ combinations scavenging rate of DPPH (1,1-diphenyl-2-picrylhydrazyl) radical and hydroxyl radical, as well as reducing power were 77.35%,32.51%,0.29, respectively, which were significantly higher than those of Fe2+, Zn2+ combinations.In addition, the amino acid sequence analysis showed that the hydrolyzates with higher contents of Glu,Asp,Lys and Ser had the higher mineral ion binding activity.

Cite this article

ZHANG Jin-yang et al . Mineral ion binding activity of hydrolysates from Tilapia muscle andantioxidant activities of combinations[J]. Food and Fermentation Industries, 2018 , 44(5) : 76 -81 . DOI: 10.13995/j.cnki.11-1802/ts.016296

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