The statistical analysis of the Box Behnken Design experimental results, response surface modeling and optimization of the process variables was carried out using MINITAB 15. The analysis of the model was tested by Fisher’s ‘F’ and Student’s t-test. Analysis of variance (ANOVA) of the quadratic regression model showed that the model was significant (P = 0.013) as shown in Table 3, mainly due to the square portion of the regression model. The student’s t-test was used to determine the significance of the regression coefficient of variables. A p-value below 0.05 indicates the test parameter is significant. In general, the larger the magnitude of t and smaller the value of P, more significant is the corresponding coefficient term