Fig. 5From: Enhanced biomethane production rate and yield from lignocellulosic ensiled forage ley by in situ anaerobic digestion treatment with endogenous cellulolytic enzymesPercent difference in gas production between the enzyme augmented sample and the untreated sample normalized to 100%. Note that the x-axis is not linear but represents actual time points for gas production sampling (more frequent in the beginning)Back to article page