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. 2017 Jun 5;7:114. doi: 10.1186/s13568-017-0411-4

Fig. 1.

Fig. 1

Response surface plot for the total ACN content of FRB describing the interaction of independent variables namely, pH, temperature, and NaCl concentration on ACN content. a Effect of temperature and pH on total ACN content of FRB, b effect of NaCl concentration (%) and pH on total ACN content of FRB, and c effect of NaCl concentration (%) and temperature on total ACN content of FRB