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Table 1 Variables and levels of the Box–Behnken experiment

From: Novel optimization strategy for tannase production through a modified solid-state fermentation system

Variables

Levels of variables

Code

− 1

0

1

Tannin (%)

A

3

6

9

Glucose (%)

B

3

6

9

(NH4)2SO4 (%)

C

6

9

12

Yeast extract (%)

D

1

3.5

6

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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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