Microbiological oxidation of the branched C5-dicarboxylic acids

Krishnamachar, V. S. ; Subramanian, S. S. ; Raghavendra Rao, M. R. (1963) Microbiological oxidation of the branched C5-dicarboxylic acids Archives of Microbiology, 47 (4). pp. 338-343. ISSN 0302-8933

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Official URL: http://www.springerlink.com/content/v62462562140j1...

Related URL: http://dx.doi.org/10.1007/BF00406358


The oxidation of branched C5-dicarboxylates has been studied with microorganisms obtained from enrichement cultures with each of these acids. Bacteria grown on itaconate, mesaconate or methylsuccinate oxidize most of these compounds rapidly; (+) citramalate is oxidized 2-4 times as rapidly as (-) citramalate; and citraconate only feebly. Citraconate-grown cells do not oxidize itaconate and oxidize feebly mesaconate and methylsuccinate; they oxidize (-) citramalate 3-4 times faster than (+) citramalate. Cell-free extracts of various strains grown on different C5-dicarboxylates contain pronounced mesaconase activity, varying amounts of citraconase and hardly any itaconase activity.

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