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. 2011 Nov 20;11:110. doi: 10.1186/1472-6750-11-110

Figure 2.

Figure 2

Response surfaces and corresponding contour plots obtained from Equation (1). The combined effects of (a) glucose (X1) and soy peptone (X2); (b) glucose (X1) and MnSO4·H2O (X3); (c) MnSO4·H2O (X3) and initial pH (X4) on growth of Acetobacter sp. CCTCC M209061.