Patents by Inventor Rita M. Moraes

Rita M. Moraes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Enhanced yield of podophyllotoxin from natural products through in situ conversion methods
    Patent number: 6143304
    Abstract: Enhanced recovery of podophyllotoxin from biological sources is achieved through disruption or permeabilization of the physical integrity of cells and tissues in the presence of sufficient moisture so as to allow endogenous enzymes to convert podophyllotoxin glucosides to podophyllotoxin. Extraction of the podophyllotoxin from the plant material is then achieved by use of an organic solvent. Podophyllotoxin is used as an intermediate in the production of the antitumor agent etoposide and its analogues.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: November 7, 2000
    Assignees: The University of Mississippi, The United States of America as represented by the Secretary of Agriculture
    Inventors: Camilo Canel, Franck E. Dayan, Rita M. Moraes, Charles L. Burandt