ABSTRACT High pressure (HP) treatment of 250 MPa pressure, 6-min holding time, and 400 MPa/min ramp rate at 25°C was applied to headless Indian white prawn (Fenneropenaeus indicus) to investigate the significant modifications on the functional properties of protein during chilled storage. Muscle fibers were shrunk and extracellular space apparently reduced after HP treatment. Myofibrillar proteins denatured and sarcoplasmic proteins aggregated and were found to be stable in HP-treated sample during chilled storage. Water-holding capacity, solubility, viscosity, and Ca2+ ATPase activity of protein were diminished, whereas foam expansion, foam volume stability, and turbidity of proteins improved with HP treatment and storage period (p < .05). Turbidity of the protein was inversely proportional to viscosity, solubility, and Ca2+ ATPase activity in HP-treated samples.

中文翻译：

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高压处理的印度白虾 (Fenneropenaeus indicus) 冷藏期间蛋白质功能特性的变化

摘要 在 25°C 下对无头印度白虾 (Fenneropenaeus indicus) 施加 250 MPa 压力、6 分钟保持时间和 400 MPa/min 升温速率的高压 (HP) 处理，以研究其功能特性的显着改变。冷藏期间的蛋白质。HP处理后肌纤维收缩，细胞外空间明显减少。肌原纤维蛋白变性，肌浆蛋白聚集，并且在冷冻储存期间在 HP 处理的样品中是稳定的。蛋白质的持水能力、溶解度、粘度和 Ca2+ ATPase 活性降低，而随着 HP 处理和储存期的增加，泡沫膨胀、泡沫体积稳定性和蛋白质浊度得到改善 (p < .05)。蛋白质的浊度与粘度、溶解度、