Effect of High Intensity Ultrasound on the Gel and Structural Properties of Ctenopharyngodon idellus Myofibrillar Protein

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• 作者：Qing-Hui Wen ; Zong-Cai Tu ; Lu Zhang ; Hui Wang and Hai-Xia Chang
• 刊名：Journal of Food Biochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：41
• 期：1
• 全文大小：444K
• ISSN：1745-4514

文摘

Effect of ultrasound (US) treatment at 0–800 W on the gel properties of Ctenopharyngodon idellus myofibrillar protein (MP) was first evaluated by analyzing the textural properties, water-holding capacity (WHC) and whiteness. Particle size, fluorescence spectra, free sulfhydryl (SH) groups and microstructure were measured to investigate the structure changes. The MP gel treated with US at 600 W gave the best gel properties, including the highest gel strength, hardness, gumminess, chewiness, WHC and whiteness. Compared with untreated gel, the gel network structure of MP gel treated by US was also more denser and uniform. The reduced particle size, narrowed particle distribution, decreased free SH content and intrinsic fluorescence, as well as improved surface hydrophobicity caused by US treatment indicated the unfolding and disaggragation of MP, which could also be the possible mechanism of improved gel properties.