in crude extracts , the following enzymes involved in pyruvate metabolism were demonstrated : lactate dehydrogenase , phosphotransacetylase , acetate kinase , acetaldehyde dehydrogenase ( coenzyme a acetylating ) , ethanol dehydrogenase , ph 6 acetolactate-forming enzyme , and diacetyl ( acetoin ) reductase .
C0022917
lactate dehydrogenase
C0030016
reductase