Nutrition of the Propionic Acid Bacteria

Nutrition of the acetic acid bacteria.

Relatively little information is available on the specific nitrogen and growth factor requirements of the acetic acid bacteria. The early observation of Hoyer (1898) and of Beijerinck (1898) that only Acetobacter aceti can develop in a mineral salts-ammonium nitrogen medium with ethanol plus acetate as the source of carbon has acquired taxonomic and diagnostic value for this and, more recently,...

The Aerobic Dissimilation of Lactic Acid by the Propionic Acid Bacteria.

The hydrogen reacts with lactic acid to form propionic acid. Pyruvic acid has been isolated from the fermentation of glucose (1934) and of lactic acid (unpublished data) by Wood and Werkman. These investigators supported Van Niel's proposed dissimilation of pyruvic acid inasmuch as the occurrence of acetaldehyde could not be demonstrated. Little information is available concerning the aerobic d...

Pyridoxine Nutrition of Lactic Acid Bacteria.

Previous reports from this laboratory have shown that pantothenic acid is essential for the growth of every species of lactic acid bacteria tested (Snell et al., 1937). It has also been shown that while some species of lactic acid bacteria require riboflavin for growth, several do not (Snell and Strong, 1939). In a study of the activity of certain synthetic flavins, a close correlation was foun...

The utilisation of CO(2) in the dissimilation of glycerol by the propionic acid bacteria.

This paper by Wood and Werkman is truly outstanding. First, it is a classical example of determination of the path of a fermentation by careful quantitative analyses of substrates consumed and products formed. Second and most importantly, the results led to the discovery of CO2 fixation by heterotrophic bacteria. The dogma at the time the work was done and as expressed in textbooks held that on...

Bioassay-Guided Isolation and Characterisation of Antifungal Metabolites Studies of Lactic Acid Bacteria and Propionic Acid Bacteria