UBIQUINONE, ETC. IN ANIMAL LIVER 99to a second crop of crystals carrying more of the above.Vitamin A remains in the methanol-soluble fraction.3. Chromatography on alumina allows the separation of ubiquinone from the cholesterol.4. Acetylation of the sterol fraction followed by chromatography allows the separation of substance SC.5. Ubiquinone has been found in normal liver of ten mammalian species in amounts from 10 to 40 pg./g.Pullet liver was richer.Substance SC was not often detected and then only in very small quantities.
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Morton et al. (1959) studied this question.
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