The specificity of the action of lactic acid bacteria on the phosphoglyceric acids

Abstract

Selective decomposition of phosphoglycerates was observed with yeast maceration extract, a d-acid-former (Lactobacillus sake) and an Z-acid-former (Leuconostoc). With yeast maceration extract ( + )-2- and ([long dash])-3-phospho-glyceric acids were decomposed, an Z-acid-former decomposed ( + )-2- and ( +)-3-phosphoglyceric acids and with the d-acid-former ([long dash])-2- and ([long dash])-3-phosphoglyceric acids were decomposed. No optical specificity was found with resting cells of a dl-acid-former (Lactobacillus plantarum) by which all the forms of 2- and 3-phosphoglyceric acids were decomposed, while the same specificity as that of the Z-acid-former was observed with maceration extract of the dl-acid-former. Racemization of 2- and 3-phosphoglyceric acids was produced by racemase.