Abstract
Gelation is an important functional property of protein in meats. In this study, we prepared actomyosin from scallop Patinopecten yessoensis adductor muscles and studied the effects of pH on the physicochemical properties of the actomyosin preparation and on its heat-induced gel-forming properties. The results showed that the turbidity and surface hydrophobicity of scallop actomyosin increased with increases in the heating temperature, while the α-helical content concomitantly decreased. Higher turbidity and surface hydrophobicity and lower α-helical content were found to be easily obtained at lower pH values. A high water-holding capacity, strong gel strength, fine gel network and uniform ice crystals were all clearly observed at pH 7.0, indicating that a neutral pH was most beneficial for formation of the heat-induced scallop actomyosin gel. We therefore conclude that both the physicochemical properties of scallop actomyosin and its gel-forming ability during the heating process are pH dependent.
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This work was financially supported by “The National High-tech Research and Development Program of People’s Republic of China (863 Program, No. 2011AA100803)”.
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Dong, XP., Ma, LL., Zheng, J. et al. Effect of pH on the physicochemical and heat-induced gel properties of scallop Patinopecten yessoensis actomyosin. Fish Sci 80, 1073–1082 (2014). https://doi.org/10.1007/s12562-014-0778-y
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DOI: https://doi.org/10.1007/s12562-014-0778-y