has part (R,R)-butanediol dehydrogenase activity acetolactate synthase activity pyruvate fermentation butanediol metabolic process butanediol biosynthetic process https://github.com/geneontology/go-ontology/issues/28388 https://github.com/geneontology/go-ontology/issues/30865 butylene glycol biosynthesis butanediol fermentation The chemical reactions and pathways resulting in the formation of butanediol; the biologically relevant isomer is 2,3-butanediol. GO:0034079 Wikipedia:Butanediol_fermentation butanediol anabolism pyruvate fermentation to butanediol glycolytic fermentation to butanediol butanediol formation butanediol biosynthesis biological_process butanediol synthesis MetaCyc:P125-PWY butylene glycol biosynthetic process glycol biosynthetic process acetolactate decarboxylase activity diacetyl reductase ((R)-acetoin forming) (NAD+) activity secondary alcohol biosynthetic process