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Journal of Biotech Research
Vol. 6, 2015; Pages: 14-20

Identification of newly-isolated microorganisms containing valuable polyunsaturated fatty acids

Yana Tsurkan, Tatyana Karpenyuk, Irina Guschina, Saltanat Orazova, Alla Goncharova, Roza Beisembaeva

Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Al-Farabi av. 71, 050040, Almaty, Kazakhstan.


The fatty acid compositions of 21 cultures of microorganisms isolated from soil or freshwater sites in Kazakhstan were studied. Pleurosigma sp. contained significant amounts of arachidonic acid while several cultures had appreciable eicosapentaenoic acid, in addition to various 18C polyunsaturated acids. Сultures containing the highest amount of polyunsaturated fatty acids were: Pleurosigma sp., Petromyces alliaceus, Rhodotorula mucilaginose, Yarrowia lipolytica, Auerobasidium commune and they were selected for further study. They may prove useful as new sources for the production of nutritionally-valuable polyunsaturated fatty acids.

Keywords: Arachidonic acid; Fungi; Microalgae; Polyunsaturated fatty acids; Eicosapentaenoic acid.

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