Patents by Inventor Jung Seop Roh

Jung Seop Roh 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).

  • Process for extracting astaxanthin pigment from yeast and extracted pigment thereof
    Publication number: 20030087335
    Abstract: The present invention relates to a process for extracting astaxanthin pigment from the yeast cells of Phaffia rhodozyma comprising the steps of i) cultivating the yeast, ii) treating yeast culture suspension with microwave to destroy the cell walls and microbodies, iii) drying it or extracting astaxanthin pigment using the solvent selected from the group consisting of ethanol, methanol, acetone and mixture of them. Further, the present invention also relates to the astaxanthin extracted by above method.
    Type: Application
    Filed: January 3, 2002
    Publication date: May 8, 2003
    Inventors: Ji Young Han, Seung Jae Lee, Myung Kyo Jung, Seok Keun Choi, Jung Seop Roh