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. 2021 Jan 23;21:34. doi: 10.1186/s12866-021-02093-6

Fig. 2.

Fig. 2

Three-dimensional surface plots representing the effect of 3 factors on inhibition zone diameter. When the effect of two parameters was plotted, the remaining one was set at central level a temperature and pH b temperature and inoculum size c pH and inoculum size