DOCOSAHEXAENOIC ACID (DHA) PRODUCTION BY THRAUSTOCHYTRIUM SP ATCC-20892

Thraustochytrium sp. ATCC 20892 produced high yields of docosahexaenoi c acid (DHA), more than four other strains of Thraustochytrium and Sch izochytrium tested, but insignificant amounts of other polyunsaturated fatty acids. Glucose and sodium glutamate were the preferred carbon a nd nitrogen sources, respectively, and the optimum conditions for grow th and DHA production were pH 7.0 at 25 degrees C with 40 g glucose l( -1) for 4 days. Temperature profiling under these optimum conditions f urther enhanced the yield and volumetric productivity of DHA.