earticle

영어

Biobutanol, one of the promising biofuels for future, has the potential to meet the needs of sustainable and green energy systems. Fermentative substrate is an important factor influencing the cost of butanol production. Lignocelluloses and hemicelluloses are the most abundant renewable resource on the planet, and have attracted much attention recently due to their potential as substrates for biofuel production. However, during the pretreatment of lignocelluloses to get fermentative substrates, a complex mixture of microbial inhibitors are generated
as by-products. In this study, we investigated the effect of various inhibitory compounds, ferulic acid, syringaldehyde, ρ-coumaric acid, 4-hydroxybenzoic acid, vanilin acid, and vanilin, on butanol production and growth with Clostridium beijerinckii NCIMB 8052 and Clostridium acetobutylicum ATCC 824. The effect of the inhibitory compounds on the growth and production of butanol were monitored over 72-hour of batch cultivation with C. beijerinckii NCIMB 8052
and C. acetobutylicum ATCC 824. The exposure to ρ-coumaric acid led a reduced butanol production for both C. beijerinckii NCIMB 8052 and C. acetobutylicum ATCC 824, while the addition of syringaldehyde did not show any reduction on butanol production for both strains.