The effect of different concentrations of formic and propionic acids on the ethanol and higher alcohols production was studied with synthetic medium. There were no significant differences among ethanol , n-propilic, isobutilic and isoamilic alcohols in all treatments. However a reduction of isoamilic alcohol content was observed at higher levels of formic and propionic acids.
formic acid; propionic acid; higher alcohols; alcoholic fermentation; Saccharomyces cerevisiae