Skip to main content

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