From: Lignin degradation in corn stalk by combined method of H2O2 hydrolysis and Aspergillus oryzae CGMCC5992 liquid-state fermentation
Independent variable
Symbol
Level
−1
0
1
Enzyme volume
X 1
25
50
75
H2O2 concentration (%)
X 2
0.9
1.5
2.1
H2O2 flow rate
X 3
0.3
0.4
0.5
H2O2 volume
X 4
60
80
100