Antioxidant and cryoprotective effects of Amur sturgeon skin gelatin hydrolysate in unwashed fish mince

Food Chemistry
Mehdi NikooXueming Xu

Abstract

Antioxidant and cryoprotective effects of Amur sturgeon skin gelatin hydrolysates prepared using different commercial proteases in unwashed fish mince were investigated. Gelatin hydrolysates prepared using either Alcalase or Flavourzyme, were effective in preventing lipid oxidation as evidenced by the lower thiobarbituric acid-reactive substances formation. Gelatin hydrolysates were able to retard protein oxidation as indicated by the retarded protein carbonyl formation and lower loss in sulfhydryl content. In the presence of gelatin hydrolysates, unwashed mince had higher transition temperature of myosin and higher enthalpy of myosin and actin as determined by differential scanning calorimetry. Based on low field proton nuclear magnetic resonance analysis, gelatin hydrolysates prevented the displacement of water molecules between the different compartments, thus stabilizing the water associated with myofibrils in unwashed mince induced by repeated freeze-thawing. Oligopeptides in gelatin hydrolysates more likely contributed to the cryoprotective effect. Thus, gelatin hydrolysate could act as both antioxidant and cryoprotectant in unwashed fish mince.

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Citations

Oct 16, 2018·Journal of the Science of Food and Agriculture·Nalan Gokoglu
Aug 2, 2019·Food Science & Nutrition·Lhumen A TejanoYu-Wei Chang
Sep 23, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Chun-Yung HuangRen-Han Huang
Sep 2, 2020·Antioxidants·Mingfei PanShuo Wang
Mar 14, 2018·Marine Biotechnology·Juan Zamora-SilleroCarlos Prentice
Dec 12, 2020·Food Science of Animal Resources·Youn-Kyung HamHyun-Wook Kim
Mar 7, 2021·Marine Drugs·Daniela CoppolaDonatella de Pascale
Oct 23, 2020·International Journal of Biological Macromolecules·Veymar G Tacias-PascacioRoberto Fernandez-Lafuente
Apr 4, 2021·Marine Drugs·Suhair Al-NimryRawand Daghmash
Jun 10, 2021·International Journal of Dermatology·Young In LeeJu Hee Lee
Nov 13, 2021·Comprehensive Reviews in Food Science and Food Safety·Jing TianJianhua Liu

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