“…Zymomonas mobilis , a Gram-negative facultative anaerobic bacterium, is among the most promising sorbitol-producing microorganisms since it possesses several ideal industrial biocatalyst properties, such as low biomass yield, low oxygen requirements, high osmolarity tolerance, high ethanol tolerance, high sugar uptake and conversion rate, and high product formation rate 17 . Several strains of Z. mobilis have been investigated for their sorbitol production efficiency, such as Z. mobilis 113S 18 , CP4 9 , ZM4 (ATCC 31,821) 19 , ATCC 29,191 10 , 11 , 20 , pHW20a- gfo 12 , and TISTR548 16 . Most of these strains, except strain TISTR548, could grow and produce high sorbitol concentrations at a normal growth temperature (30 °C).…”