Bioprocessing Butanol into More Valuable Butyl Butyrate

The toxicity of butanol to microbial cells makes it difficult to scale-up the acetone–butanol–ethanol (ABE) fermentation process. Bioconversion of butanol into more valuable and nontoxic short-chain esters, such as butyl butyrate which is widely used in the food, beverage, and biofuel sectors, offers a promising alternative. The toxicity of butanol to microbial cells makes it difficult to scale-up the acetone–butanol–ethanol (ABE) fermentation process. Bioconversion of butanol into more valuable and nontoxic short-chain esters, such as butyl butyrate which is widely used in the food, beverage, and biofuel sectors, offers a promising alternative.