响应面法优化速食海鲜羹的加工工艺
Optimization process of the instant seafood Jelly through response surface method
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摘要: 目的:优化速食海鲜羹加工工艺,选取最优复合胶参数。方法:以渤海对虾仁为原料,选择k-卡拉胶、魔芋胶为复配胶凝剂,经过熬制、杀菌、冷却等工艺制作速食海鲜羹;以凝胶强度结合感官评分为双响应值作为评价指标,在复配胶比例、胶总量、熬胶温度、Na Cl添加量四个单因素实验的基础上,利用Design-Expert 8.0进行四因素三水平的响应面设计,建立数学模型,优化工艺条件。结果:速食海鲜羹的最佳工艺条件为k-卡拉胶∶魔芋胶(g∶g)=4∶1,复配胶添加量1.0%,熬胶温度75℃,Na Cl添加量为0.5%,得到凝胶强度为2.38 kgf/cm2,感官评分达到94.3分,接近于模型预测值2.49 kgf/cm2和95.8分,验证性实验与预测值基本相符,即该条件下海鲜羹的口感较好,最易于消费者接受。结论:速食海鲜羹优化数学模型建立成功,对实际生产有一定参考意义。Abstract: Objective To optimize the processing technology of instant seafood jelly. The optimum compound parameters were selected.Method The Bohai prawn and konjac gum and konjac gum were used as raw materials, and the instant seafood jelly was prepared by the process of brewing, sterilization and cooling.The gel value was combined with the sensory score as the double response value based on the four factors of compound ratio, the total amount of glue, the total amount of gelatin, the temperature of boiled glue; and the four-factor experiment, the design of four-factor and three-level response surface was designed by using Design-Expert 8.0, and the mathematical model was established. Result The optimum technological conditions were as follows: k-ka gum∶ konjac gum ( g∶ g) = 4∶ 1, 1.0% of compound rubber, 75 ℃ of boiled rubber, 0.5% of Na Cl, The gel score was 2.38 kgf/cm2 and the sensory score was 94.3 points, which was close to the predicted values of 2.49 kgf/cm2 and 95.8.The validation test was consistent with the predicted value. Conclusion The rapid optimization of mathematical model of quick food seafood is of great significance to practical production.