Patents Assigned to Paxa N.V.
  • Method for preparing aloin by extraction
    Patent number: 6506387
    Abstract: The invention concerns a method for preparing aloin which consists in extracting from a substance containing aloe, in particular the yellow sap of aloe or a derived product, in the presence of an aliphatic diol or triol with low molecular weight, for instance glycerol or a glycol, followed by a purification by crystallization in an alcohol. The invention is useful for industrial preparation of aloin.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: January 14, 2003
    Assignee: Paxa N.V.
    Inventor: Avraham Cohen