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Table 1 The coded levels of sucrose and reconstituted skim milk for central composite experimental design

From: Statistical modelling for optimized lyophilization of Lactobacillus acidophilus strains for improved viability and stability using response surface methodology

Factors [% (g/100 mL)]

Coded levels

− alpha

Low

Center

High

+ alpha

Sucrose (S)

− 1.24264

0

3

6

7.24264

Reconstituted skim milk (SM)

− 1.24264

0

3

6

7.24264