Ethanol fermentation of PPW hydrolyzates
Starch hydrolyzates obtained by both enzymatic and acidic
hydrolysis, were subjected to ethanol fermentation by a 48 h old
culture of Saccharomyces cereviciae var. bayanus under anaerobic
agitated conditions (pH 5.0, 32 C, 100 rpm) in a 250 ml Erlenmeyer
flask with fermentation trap. The inoculum was 6% (v/v)
and fermentation was carried out for 2 days.