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. 2016 Jan 20;14:1. doi: 10.1186/s40201-016-0244-0

Fig. 4.

Fig. 4

Response surface and contour plots of laccase production by C. gallica. under solid-state fermentation (SSF) conditions operating with sawdust as support-substrate showing the effect of two variables (other variables were kept at zero in coded unit): significant interaction between (a): peptone (A) and Cd2+ (B); (b): peptone (A) and L/S ratio (C); (c): Cd2+ (B) and L/S ratio (C)