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Table 1 Variable codes and their levels employed in the two-level factorial design for screening of medium components affecting xylanase production by Aspergillus oryzae MN894021

From: Statistical optimization of xylanase production, using different agricultural wastes by Aspergillus oryzae MN894021, as a biological control of faba bean root diseases

Variable codes Variables Units Low level (−1) High level (+1)
A Substrate con. % 1.5 2.5
B Yeast extract g/l 7.0 9.0
C (NH4)2SO4 g/l 2.0 6.0
D KH2PO4 g/l 1.5 2.5
F MgSO4.7H2O g/l 2.0 3.0