Patents by Inventor Yong Seo Shin

Yong Seo Shin 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).

  • Method for producing docosahexaenoic acid (DHA) using Pseudomonas sp. ys-180
    Patent number: 6207441
    Abstract: The present invention relates to Pseudomonas sp. YS-180 having a capability of producing a docosahexaenoic acid and a method for the production of DHA using such a microorganism. Pseudomonas sp. YS-180 was isolated and identified from the intestine of fishes by investigating the morphological, culturing, and physiological characteristics of a strain excellent in a DHA-producing capability. By TLC and GC, Pseudomonas sp. YS-180 according to the present invention was confirmed that it produced the greatest amount of DHA when it was shaking-cultured in a culture containing glucose 2% (w/v), a yeast extract 2% (w/v), and sea water 20%(v/v). Optimal conditions for producing DHA were a pH of 6.0, and a temperature of 20° C. Under these conditions a DHA production was 96.7 mg/L, and a biomass growth was 7.8 g/L.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: March 27, 2001
    Inventors: Yong Seo Shin, Il Hwan Ryu