Optimization process parameters of strawberry by response surface methodology

On the basis of single-factor-test, process parameters of strawberry juice were optimized by the combination experiments;with response surface methodology analysis was employed to explore the effect of enzymolysis time, enzyme hydrolysis temperature, enzyme solution pH on the yield and clarity of strawberry syrup.The results showed that the optimal parameters were as follows: 0.06% pectin added, enzymolysis time 80min, enzymolysis pH 3.8, enzymolysis temperature 40.0℃.Under the condition, the juice yield was 90.40%;the clarity was 88.98%, consistent with the prediction value.