Abstract
The bioconversions of oleic acid, linoleic acid, and ricinoleic acid by Pseudomonas aeruginosa PR3 were investigated. The conversion of oleic acid to 7,10-dihydroxy-8(E)-octadecenoic acid (DOD) was improved to better than 80% yields by modifying the culture medium and reaction parameters. The microbial cultures were stable and retained the same level of DOD production capacity for up to 6 mon as examined herewith. Strain PR3 did not bioconvert linoleic acid. However, strain PR3 converted ricinoleic acid to a novel compound, 7,10,12-trihydroxy-8(E)-octadecenoic acid (TOD), with a yield of about 35%. The product was further metabolized by strain PR3. TOD was purified by thin-layer chromatography, and its structure was determined by 1H and 13C nuclear magnetic resonance and mass spectrometry. This is the first report on the production of 7,10,12-trihydroxy unsaturated fatty acid by microbial transformation.
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Kuo, T.M., Manthey, L.K. & Hou, C.T. Fatty acid bioconversions by Pseudomonas aeruginosa PR3. J Amer Oil Chem Soc 75, 875–879 (1998). https://doi.org/10.1007/s11746-998-0240-3
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DOI: https://doi.org/10.1007/s11746-998-0240-3