Patents Assigned to Medipolar Oy
  • Process for the recovery of .beta.-sitosterol
    Patent number: 4153622
    Abstract: A process for the isolation of technical grade .beta.-sitosterol from the mixture of sterols in unsaponifiables obtained from crude soap skimmings. The unsaponifiables, usually called the neutral fraction, are dissolved in acetone, filtrated with active carbon, the acetone filtrate is concentrated, ethanol is added and, after cooling, the precipitated .beta.-sitosterol is centrifuged or filtered from the mixture.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: May 8, 1979
    Assignee: Medipolar Oy
    Inventors: Eero K. Lamminkari, Lasse A. Koskenniska