罗非鱼片微酸性电解水杀菌工艺响应面法优化研究

Response surface methodology for optimization of sterilization effect on tilapia fillet with slightly acidic electrolyzed water

摘要: 为研究微酸性电解水对新鲜罗非鱼片的杀菌效果，以杀菌对数值为指标，进行单因素和响应面实验，建立各因素与响应值之间的数学模型，确定最佳杀菌条件。结果表明，最佳杀菌条件为有效氯质量浓度35.00 mg·L^–1，浸泡时间22 min，料液质量体积比1∶6，在此处理条件下，杀菌对数值为(0.735±0.001) lg (CFU·g^–1)，杀菌率为(81.59±0.04)%。

Abstract: In order to study the sterilization effect of fresh tilapia fillets with slightly acidic electrolyzed water, the single factor and response surface experiment were adopted to establish the mathematical model between the factors and response values, and the best sterilization conditions were determined. The results show that the best bactericidal condition was 35.00 mg·L^–1 of available chlorine concentration, 22 min for soaking time and 1∶6 (m∶V ). Under this condition, the killing logarithm value of bacterial colony was (0.735±0.001) lg (CFU·g^–1), and the bactericidal rate was (81.59±0.04)%.