Fig. 3From: Eggshell waste bioprocessing for sustainable acid phosphatase production and minimizing environmental hazardsPBD results: a Main effect of culture variables. b Pareto chart illustrating the order and significance of the variables affecting ACP production by B. sonorensis strain ACP2. c The first-order polynomial equation determines the standard probability plot of the residuals for ACP production. d Correlation between the residual and observation order. e Correlation between the residual and predicted values(f) Box-Cox plotBack to article page