Phosphoenolpyruvic Carboxytransphosphorylase, a CO2 Fixation Enzyme from Propionic Acid Bacteria

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 Pyruvic acid has been isolated from the fermentation of glucose (1934) and of lactic acid (unpublished data) by Wood and Werkman.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...

Microbial Propionic Acid Production

Propionic acid (propionate) is a commercially valuable carboxylic acid produced through microbial fermentation. Propionic acid is mainly used in the food industry but has recently found applications in the cosmetic, plastics and pharmaceutical industries. Propionate can be produced via various metabolic pathways, which can be classified into three major groups: fermentative pathways, biosynthet...

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

Adaptation of the Propionic-Acid Bacteria to Vitamin B(1) Synthesis Including a Method of Assay.

In a paper dealing with the nutrition of the propionic-acid bacteria Wood, Andersen, and Werkman (1938) report that one species Propionibacterium pentosaceum (49W), can be "trained" to grow as well in the absence of vitamin B1 as in its presence. Their data show that adaptation occurred after continuous serial transfer in an ammonium sulfate medium containing only ether extract of yeast extract...

3-(4-Methoxy­benzo­yl)propionic acid

In the crystal of the title compound, C(11)H(12)O(4), inversion dimers arise from pairs of intermolecular O-H⋯O hydrogen bonds and C-H⋯O bonds further consolidate the packing. There is also a C-H⋯π contact between the benzene ring and the methyl-ene group.