Fig. 4From: Bioprocess development as a sustainable platform for eco-friendly alkaline phosphatase production: an approach towards crab shells waste managementPBD results. a Main effect of culture variables. b Pareto chart illustrating the order and significance of the variables affecting ALP production by B. licheniformis strain ALP3. c Normal probability plot of the residuals for ALP production determined by the first-order polynomial equation. d Correlation between the residual and observation order. e Correlation between the residual and predicted values. f Box-Cox plot. g The plot of predicted versus actual ALP productionBack to article page