石油炭化水素醗酵におけるビタミン生成とその役割 : (VI)炭化水素培地におけるMycobacterium smegmatis IFO 3080のカロチノイド生産 : (Part II)数種カロチノイドの単離と性質の検討

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This paper deals with the isolation and characterization of several carotenoids produced by Mycobacterium smegmatis in hydrocarbon fermentation. These carotenoids were classified into four categories; (1) intermediates in the carotenoid biosynthetic route, such as phytofluene, ζ-carotene, and neurosporene, (2) 4-keto-γcarotene and its derivatives (containing eleven conjugated carbon-carbon double bonds and one conjugated carbonyl group), (3) derivatives of 3', 4'-dehydro-4-keto-γ-carotene (containing twelve conjugated carbon-carbon double bonds and one conjugated carbonyl group), and (4) pigments having unknown chromophore.When carotenoids were extracted at the stationary phase, the major part consisted of 4-keto-γ-carotene and its derivatives, presumably monohydroxy-and monomethoxy-4-keto-γ-carotene. Thus, we could isolate the precursors of 4-keto-γ-carotene, 4-keto-γ-carotene itself and its derivatives, but could not detect γ-carotene or 4-hydroxy-γ-carotene, the presumable precursors of 4-keto-γcarotene biosynthesis.
社団法人日本生物工学会の論文
1968-06-25