Skip to main content

Table 3 Parameters of modified Gompertz model fitting experimental data

From: Enhancing methane production from lignocellulosic biomass by combined steam-explosion pretreatment and bioaugmentation with cellulolytic bacterium Caldicellulosiruptor bescii

Bottles Measured CH4 yield, mL CH4/g VS Calculated values from the model
CH4 yield, mL CH4/g VS max CH4 rate, mL CH4/g VS/day Lag phase, day R 2a RMSEa
Untreated + 0% 81 ± 7 79 ± 6 4.2 ± 1 2.20 ± 0.66 0.9892 3.52
Pretreated + 0% 179 ± 7 177 ± 6 9.9 ± 2 8.00 ± 0.32 0.9899 8.11
Pretreated + 2% 197 ± 9 197 ± 8 15.5 ± 3 8.19 ± 1.14 0.9896 9.52
Pretreated + 5% 196 ± 5 196 ± 5 13.3 ± 4 7.25 ± 2.05 0.9902 8.89
Pretreated + 10% 189 ± 2 189 ± 2 13.2 ± 2 6.47 ± 1.22 0.9896 8.87
Pretreated + 15% 188 ± 8 188 ± 7 13.9 ± 2 7.26 ± 0.72 0.9878 9.66
  1. aR2 and RMSE were calculated from the average values of the measured methane production during 50 days and the one calculated using the model