Efficient production of L-lactic acid from xylose by a recombinant Candida utilis strain.

Efficient L-lactic acid production from xylose was achieved using a pyruvate decarboxylase-deficient Candida utilis strain expressing an L-lactate dehydrogenase, an NADH-preferring mutated xylose reductase (XR), a xylitol dehydrogenase and a xylulokinase. The recombinant strain showed 53% increased L-lactic acid production compared with the reference strain expressing native XR (NADPH-preferring).

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