[Fatty acids in Dictyococcus cinnabarinus in autotrophy and myxotrophy].
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Biomedical subjects
Publications and source records attributed to L Tuttobello.
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Growth and pigmentation of Epicoccum nigrum was studied in submerged culture in various media. Red pigmentation of the mycelium and of fermentation broth was obtained only in a medium containing glucose and yeast autolysate. This pigmentation occurred at the time of maximal production of carotenoids. Observations on the submerged culture of this organism in flasks and in fermentors are described, and the details of a standardized procedure for the production of carotenoid pigments are given.
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1. Six carotenoid pigments were produced by and isolated from the green alga Dictyococcus cinnabarinus grown in submerged culture in the presence of glucose. 2. The first, second and fourth pigments were identified respectively as beta-carotene, echinenone and canthaxanthin; the physicochemical properties of the other three are described and their similarity to other oxo-carotenoids is shown. 3. Culture techniques, isolation and identification procedures are described.