Patents by Inventor Joerg Schroeppel

Joerg Schroeppel 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).

  • Patent number: 5558781
    Abstract: A process is disclosed for enzymatically degumming vegetable oil where the vegetable oil to be degummed is adjusted to a pH from 3 to 6 and is mixed with an aqueous enzyme solution, which contains one of the enzymes phospholipase A1, A2 or B. In a degumming reactor the enzymes are permitted to act on the oil at temperatures from 20.degree. to 90.degree. C. with stirring. Before or after a separation of the degummed oil a separation promoter or a solubilizer is added at temperatures from 20.degree. to 90.degree. C. to the liquid which has been withdrawn from the degumming reactor. A substantially sludgefree solution, which contains used enymes, is thus recovered and is recycled at least in part to a location preceding the degumming rector. The content of recycled used enzymes in the total amount of the enzymes dispersed in the oil is at least 10%.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: September 24, 1996
    Assignees: Metallgesellschaft Aktiengesellschaft, Rohm GMBH Chemische Fabrik
    Inventors: Henning Buchold, Rudolf Boensch, Joerg Schroeppel