원문정보
초록
영어
The toxicity of several compounds commonly found in lignin hydrolysates were evaluated individually by monitoring the production of acetone, butanol and ethanol (ABE) from Clostridium beijerinckii. The compounds selected for toxicity analysis included coumaric acid, syringaldehyde, furfural, ferulic acid, and glucuronic acid. The growth and production of each of the ABE compounds were monitored over 72-hour of batch cultivation with C. beijerinckii. Significant decrease in butanol and acetone production were evident when the cultures were
exposed to 0.5 mg/ml coumaric or ferulic acid, with a concurrent increase in the amount of acetic acid and butyric acid being produced. Likewise, exposure to syringaldehyde led a reduced butanol production, while the addition of up to 1 mg/ml of furfural or glucuronic acid had little or no effect on the metabolic output of C. beijerinckii.