What is claimed is:
1. A genetically engineered thermophilic bacterial cell that is facultative anaerobic comprising:
a) inactivation or deletion of the endogenous (S)-lactate dehydrogenase gene;b) introduction of a (R)-lactate dehydrogenase gene;c) inactivation or deletion of the endogenous pyruvate formate lyase A and/or B gene.
The present invention relates to modifying a thermophilic bacterial cell for homolactic and enantiopure (R)-lactic acid production, a genetically modified cell, and a method to produce enantiomeric pure (R)-lactic acid.