响应面试验优化盐渍仿刺参脱盐工艺

为了提高脱盐速率和减少营养损失,以盐渍仿刺参为原料,采用常压静水脱盐方式,研究了温度、料液比、脱盐时间、换水次数对脱盐效果的影响,通过单因素和响应面法对影响盐渍仿刺参脱盐工艺的主要因素进行分析优化。结果表明:在相同的脱盐温度下,影响盐渍仿刺参脱盐工艺的因素按主次顺序排列为:料液比>脱盐时间>换水次数;确定了盐渍仿刺参脱盐的最佳工艺条件为:脱盐温度25℃,料液比1∶4.3 g/m L,换水次数2,每隔240 min进行换水,在此条件下测得脱盐率可达到85.98%±0.22%,与预测值吻合度好。 

Optimization of desalting process of salted Apostichopus japonicus by response surface methodology

In order to improve the desalting efficiency and reduce the nutrient losses of salted Apostichopus japonicus, the desalting process was adopted in still water under atmospheric.The optimization of desalted temperature, solid to solvent ratio, desalting time and water changing times based on desalination rate of salted Apostichopus japonicus was performed using combination of one-factor-at-a-time method and response surface methodology.The results showed that desalination rate was affected in decreasing order by the three factors: solid to solvent ratio, desalting time and water changing times. A desalted temperature of 25 ℃, solid to solvent ratio of 1 ∶ 4.3 g/m L, desalting time of 240 min and water changing times of 2 proved optimal.Experiments carried out under the optimized conditions led to a desalination rate of 85.98% ± 0.22%, good agreement with the predicted value.