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Purification of sitosterol

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Sitosterol and stigmastanol are obtained from the Raney nickel catalyzed hydrogenation of stigmasterol. The sitosterol was separated from stigmastanol by silica gel column chromatography of its dibromide. Sitosterol was also obtained from the steam deodorizer distillate of crude cottonseed oil and purified by manifold recrystallizations of the free sterol from isopropanol and its acetate from alcohol-acetic acid mixtures at a low temperature.

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Contribution No. 1946, Arizona Agricultural Experiment Station.

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Kircher, H.W., Rosenstein, F.U. Purification of sitosterol. Lipids 8, 97–100 (1973).

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