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Fig. 3 | BMC Biotechnology

Fig. 3

From: Tofu processing wastewater as a low-cost substrate for high activity nattokinase production using Bacillus subtilis

Fig. 3

Response surface curves showing the effects of each component in the medium on the production of nattokinase. The response curves show the interaction between different factors. a Interaction between TPW and glucose; b Interaction between MgSO4 and glucose; c Interaction between MgSO4 and TPW; d Interaction between CaCl2 and glucose; e Interaction between CaCl2 and TPW; f Interaction between MgSO4 and CaCl2

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