The Effect of Streptomycin on the Metabolism of Benzoic Acid by Certain Mycobacteria.

The inhibition by streptomycin of adaptive enzyme formation in mycobacteria.

A number of Mycobacteria oxidize benzoic acid and some can use it as the sole source of carbon (1). Upon addition of benzoic acid to suspensions of washed organisms in the Warburg vessel its oxidation proceeds slowly for 30 to 60 minutes, then very rapidly until about half the amount of oxygen for complete combustion is taken up. The rate then parallels that of the autorespiration. It was thoug...

The kinetics of the oxidation of benzoic acid by certain Mycobacteria.

Benzoic acid is oxidized by certain Mycobacteria (1). They do not oxidize it completely to carbon dioxide and water; the oxygen uptake usually stops when 5 atoms of oxygen are utilized for each molecule of benzoic acid. The enzymes concerned are adaptive, and are rapidly formed when small amounts of benzoic acid are added to suspensions of the bacteria (2). Benzoic acid may be considered somewh...

The effect of substituted benzoic acids on adaptive enzyme formation in a Mycobacterium.

Certain Mycobacteriu form adaptive enzymes for the oxidation of benzoic acid (1). The oxidation proceeds through catechol and protocatechuic acid (2) and is thus similar to that in PseudomonasJEuorescens (3). Neither cyclohexanecarboxylic acid nor any substituted benzoic acid is oxidized by these Mycobacteria, but certain of these compounds can induce the organism to form adaptive enzymes for b...

Stabilizing Effect of Organic Stabilizer (EDTA, 1,2 Propane diol, Benzoic Acid and Phenol) on the Thermal Degradation of Polyvinyl Chloride (PVC)

Determination of the effects of food preservatives benzoic acid and sodium nitrate on lifespan, fertility and physical growth in Caenorhabditis elegans

Presently, the use of protective food additives such as benzoic acid and sodium nitrate is quite common. However, it was found that these additives, which initially appeared to be harmless, led to the emergence of a number of health problems. Cancer and diseases and deaths with no apparent causes are among the leading concerns. Therefore, the studies which can reveal the genotoxic potential of ...