Fermentation of sugar mixtures using Escherichia coli catabolite repression mutants engineered for production of L-lactic acid.

Abstract excerpt

Conversion of lignocellulose to lactic acid requires strains capable of fermenting sugar mixtures of glucose and xylose. Recombinant Escherichia coli strains were engineered to selectively produce L-lactic acid and then used to ferment sugar mixtures. Three of these strains were catabolite repression mutants (ptsG(-)) that have the ability to simultaneously ferment glucose and xylose. The best results were...

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