The identification of cis-11,12-methylene-2-hydroxyoctadecanoic acid from Thiobacillus thiooxidans.

The Identification of cis=ll ,l%Methylene=2=hydroxyoctadecanoic Acid from Thiobacillus thiooxidans*

A polar fatty acid has been observed as a component of an ornithine-containing lipid of Thiobacillus thiooxidans. A comparison of thin layer chromatographic mobilities of reference compounds to those of the natural acid and its derivatives suggested that the acid was a 2-hydroxy fatty acid. The presence of a cyclopropane function in the acid was indicated by W-labeling experiments and infrared ...

The Identification of cis-II, I2-Methylene-2-hydroxyoctadecanoicAcid from Thiobacillus thiooxidans

The structure of an ornithine-containing lipid from Thiobacillus thiooxidans.

The structure of an ornithine-containing lipid from Z’Gobacillus fhiooxidans has been elucidated. Methanolysis of the lipid released methyl cis-ll,lZ-methylene-Z-hydroxyoctadecanoate. Acid hydrolysis of the residue yielded ornithine and a mixture of fatty acids, the major components of which were 3-hydroxyhexadecanoic and 2-hexadecenoic acids. Identification of the 3-hydroxy fatty acid was base...

A simple medium modification for isolation, growth and enumeration of Acidithiobacillus thiooxidans (syn. Thiobacillus thiooxidans) from water samples.

High concentrations of H(2)S in groundwater are commonly removed using Biological Trickling Filter (BTF) that contains high numbers of biofilm immobilized sulfur oxidizing bacteria (mainly Thiobacillus thiooxidans). BTF performance requires continuous monitoring of these bacteria at several sampling points. The Most Probable Number (MPN) technique is at the moment the method of choice to enumer...

Effect of pH on sulfite oxidation by Thiobacillus thiooxidans cells with sulfurous acid or sulfur dioxide as a possible substrate.

The oxidation of sulfite by Thiobacillus thiooxidans was studied at various pH values with changing concentrations of potassium sulfite. The optimal pH for sulfite oxidation by cells was a function of sulfite concentrations, rising with increasing substrate concentrations, while that by the cell extracts was unaffected. The sulfite oxidation by cells was inhibited at high sulfite concentrations...