Patents Assigned to Doosan Technical Center
  • Method of using yeast to recover phytin by precipitation from cornsteep liquor or light steep water
    Patent number: 5593855
    Abstract: A process for recovery of phytin with a higher purity comprises the steps of preparing LSW or CSL, inoculating a yeast into LSW or CSL, culturing the yeast therein to precipitate phytin and separating phytin by sedimentation. The method may comprise a further step of adding salt into CSL to accelerate the formation of phytin precipitate and increase the yield of phytin.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: January 14, 1997
    Assignee: Doosan Technical Center
    Inventors: Youl-Lark Lee, Sang-Jae Park
  • Escherichia coli containing a gene encoding a maltogenic amylase BLMA of Bacillus licheniformis and gene product produced by same
    Patent number: 5583039
    Abstract: An Escherichia coli (ATCC 68319) containing a gene encoding a novel maltogenic amylase of Bacillus licheniformis (BLMA), wherein said gene has a length of about 3.5 kb; said gene expresses a gene product capable of hydrolyzing cyclodextrin, pullulan, as well as starch at an optimum temperature of about 50.degree. C. at a pH of about 7; said gene product has sugar transferase activity in the presence of glucose; and said Escherichia coli produces said gene product optimally when grown in Luria broth, for 24 hours, at 37.degree. C.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: December 10, 1996
    Assignees: Sunkyong Industries Ltd., Doosan Technical Center, Sunhill Glucose Co., Ltd.
    Inventors: Kwan H. Park, In C. Kim, Key H. Kim, Jae H. Cha, So Y. Jang, Jeoung R. Kim, Byung C. Seo, Yang D. Choi