Process for the isolation of bsitosterol containing a low...

Details Process for the isolation of bsitosterol containing a low... Process for the isolation of bsitosterol containing a low...

C - Chemistry, Metallurgy

07

J

260/61

C07J 9/00 (2006.01)

Patent

CA 1133467

ABSTRACT OF THE DISCLOSURE A process is provided herein for the isolation and recovery of .beta.-sitosterol substantially free of .alpha.-sitosterol from the unsaponifiables obtained from crude soap skimmings or from a crude sterol mixture contain- ing .beta.-sitosterol, .alpha.-sitosterol and campesterol. The starting material is treated with an inorganic or organic acid in an organic solvent, whereby .alpha.-sitosterol reacts with the acid giving rearrangement products. The solution is cooled and filtered or the solvent is distilled off, whereafter the obtained crude .beta.-sitosterol is recrystalliæed from an organic solvent, to yield the pure material. This provides a simple effective process for the production of .beta.-sitosterol substantially free of .alpha.-sitosterol on a commercial scale.

341562

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