The influence of composite water retention agent on the water retention and texture properties of the frozen large yellow croaker
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摘要: 主要研究海藻糖、山梨糖醇和柠檬酸钠对冻藏大黄花鱼持水性和质构特性的影响。在单因素实验的基础上用响应面组合分析法得出海藻糖、山梨糖醇、柠檬酸钠的最佳配比,组合成最优复合保水剂,并对经最优复合保水剂处理的大黄花鱼肉进行质构特性分析。最终得出了复合保水剂优化配方为:3.25%海藻糖、2.08%山梨糖醇、0.25%柠檬酸钠,使用此复合保水剂大黄花鱼肉持水性达到了89.92%;同时,经过优化的复合保水剂处理过的大黄花鱼解冻后,大黄花鱼肉硬度较空白对照组的下降率减少了21.9%,咀嚼性、凝聚性和恢复性等较空白对照组下降缓慢,大黄花鱼的质构得到了很好的保护。Abstract: In this paper, the influence of trehalose, sorbitol and sodium citrate on water retention and texture properties of large yellow croaker were studied. Based on the single factor test, the optimum ratio of alga, sorbitol, sodium citrate and sodium citrate was obtained by using response surface combination analysis method, generated the optimal composite water retention agent. The quality analysis of the fish treated with optimal composite water protection agent was carried out to further determine the practical application effect of optimal composite water retention agent optimization. The optimal formula of composite water retention agent was 3.25% trehalose, 2.08% sorbitol and 0.25% sodium citrate. The water retention of large yellow fish with this composite water retention agent reached 89.92%;Meanwhile, through the optimization of composite water retention agent of large yellow croaker after thawing, large chrysanthemum fish hardness drop rate decreased by 21.9%, chewiness, cohesiveness and restorative down slowly compared with blank control group, the texture of large yellow croaker was well protected.
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