Some factors influencing carbon dioxide production by Leuconostoc citrovorum.

Synthesis of citrovorum factor by Leuconostoc citrovorum; potentiation by ascorbic acid.

Further studies on the factor required by Leuconostoc citrovorum 8081.

Recently it was noted that Leuconostoc citrovorum 8081 failed to grow on a synthetic medium unless supplied with certain preparations from liver or other crude materials (1). Commercial preparations useful against pernicious anemia proved to be particularly active for this strain of L. citrovorum. The present report deals with preliminary attempts to concentrate the active principle and to diff...

The effect of folic acid upon the urinary excretion of the growth factor required by Leuconostoc citrovorum.

In a previous study it was observed that Leuconostoc citrovorum 8081 failed to grow on a synthetic medium adequate for the growth of Leuconostoc mesenteroides P-60 and other common assay organisms (1). However, the addition to the medium of certain extracts from liver permitted excellent growth of L. citrovorum. Similarly, folic acid stimulated growth of the organism but the amounts necessary w...

Carbon Dioxide Production by Leuconostoc mesenteroides Grown in Single and Mixed Culture with Lactococcus lactis in Skimmed Milk

Lactic acid bacteria are now used extensively as and aroma of the fermented product but also on the starter cultures in the dairy industry and therefore the texture of blue cheese. optimization of growth conditions appears to be essential The shift in metabolic pathways in response to for successful industrial applications. Furthermore, environmental conditions is well documented in the studyin...

Investigations on the biosynthesis of citrovorum factor by lactic acid bacteria.

Sauberlich and Baumann (1948) have reported that Leuconostoc citrovorum, strain 8081, failed to grow on a synthetic medium unless the medium was supplemented with an unidentified growth factor isolated from liver extracts, designated citrovorum factor. More recent reports in the literature (Sauberlich, 1949; Nichol and Welch, 1950a) point to the conversion of pteroylglutamic acid to citrovorum ...