SEARCH Articles Figures Tables 5 - , fermentation production Acid-fermented products Acidic by-products By hydrolysis Ethanol acidity Ethanol by fermentation Ethanol fermentation Ethanol hydrolysis Ethanol production Ethanol production by fermentation Ethanolic acid Fermentation by-products Fermentation productivity Fermentation products Fermentative production Fermented products Hydrolysis products Production by fermentation