ECB-ART-50298
Food Res Int
2022 Jun 01;156:111282. doi: 10.1016/j.foodres.2022.111282.
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Intervention mechanism of self-degradation of ready-to-eat sea cucumber by adding green tea extract and gallic acid.
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Gallic acid (GA) and green tea extract (GT) could retard the self-degradation of ready-to-eat sea cucumber (RSC). The physical and chemical properties of RSC were changed after cross-linking. Cross-linkers could retard the conversion of α-helix like structure to random coil. Besides, the peptides of cross-linked RSC were easily broken at the sites of G, E, A, L, S, H, Y, V and I after stored for 30 d. The self-degradation rate of RSC before and after cross-linking was determined by synthetic typical peptides. After cross-linked by GA, the relative peak heights of NQ, NL and GLQ increased by 20.59%, 11.14% and 31.49%, indicating that GA could effectively retard the degradation of the peptides during storage. Moreover, hydrogen bond was confirmed as the main force to maintain the stability of RSC body wall before and after cross-linking.
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