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Table 5 Predicted optimum conditions for each response assessed (A) and predicted and experimental values of the responses obtained at the optimum condition defined by multi-response optimization (B)

From: Application of response surface methodology to improve the production of antimicrobial biosurfactants by Lactobacillus paracasei subsp. tolerans N2 using sugar cane molasses as substrate

Factors Responses
Yield
(g/L)
Inhibition diameter
(mm)
Surface tension
(mN/m)
A
 Temperature (°C) 34 33 33
 Peptone concentration (g/L) 5.97 6.09 6.51
 Molasses concentration (%, w/v) 6.28 6.35 5.49
Responses Predicted value Experimental value p-value (t-test)
B
 Yield (g/L) 2.60 2.70 ± 0.10 0.158
 Inhibition diameter (mm) 61.92 63.00 ± 3.00 0.567
 Surface tension (mN/m) 36.67 37.85 ± 1.85 0.331