Shuilin Fu

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To improve 1,3-propanediol production in Klebsiella pneumoniae, the effects of puuC expression in lactate- and lactate/2,3-butanediol-deficient strains were assessed. Overexpression of puuC (encoding an aldehyde dehydrogenase) inhibited 1,3-propanediol production and increased 3-hydroxypropionic acid formation in both lactate- and(More)
To date, few studies have focused on reducing the toxic by-product acetate during 1,3-propanediol production by Klebsiella pneumoniae. In this study, the effects of deleting the poxB, pta, and ackA genes, which are involved in the two main acetate synthesis pathways, on cell growth and 1,3-propanediol production were investigated. Although acetate synthesis(More)
Growth of Escherichia coli BL21 in a glycerol minimal medium was accelerated following supplementation with trace amounts of amino acid (0.35 mM). Of 12 amino acids tested, Arg and Ser gave the highest response, increasing cell growth by 63 and 53 %, respectively, compared to control cells. The ability of amino acids to accelerate cell growth was(More)
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