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The inhibition of substrate and product on the growth of Klebsiella pneumoniae in anaerobic and aerobic batch fermentation for the production of 1,3-propanediol was studied. The cells under anaerobic conditions had a higher maximum specific growth rate of 0.19 h−1 and lower tolerance to 110 g glycerol l−1, compared to the maximum specific growth rate of 0.17 h−1 and tolerance to 133 g glycerol l−1...
Addition of 5 mm fumarate to cultures of Klebsiella pneumoniae enhanced the rate of glycerol consumption and the production of 1,3-propanediol (PDO). Compared to the control, the activity of glycerol dehydrogenase increased by 35, 33 and 46%, the activity of glycerol dehydratase increased by 160, 210 and 115%, and the activity of 1,3-propanediol oxidoreductase increased by 25, 39 and 85% when, respectively,...
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