IMPROVED STRAINS OF ZYMOMONAS MOBILIS FOR FERMENTATION OF BIOMASS

摘要

The present invention relates to methods of obtaining Z. mobilis mutant strains that are more tolerant to one or more inhibitors or more capable of efficiently fermenting one or more carbohydrates. Such inhibitors include ethanol, aliphatic acids, such as acetic acid, formic acid; furan derivatives, such as 2-furaldehyde, 2-furoic acid; and phenolic compounds, such as vanillin and hydroxybenzoic acid. Such carbohydrates may include xylose, arabinose, mannose and mixtures thereof. These mutant strains may be employed to, for example, effectively and efficiently prepare ethanol from biomass.