Patents Assigned to GENOTECH CO., LTD
  • Process for purifying vancomycin wet body
    Patent number: 8609368
    Abstract: Provided is a process for purifying a vancomycin wet body, comprising: dissolving a wet body obtained from a microorganism-fermented solution containing vancomycin into a water soluble solvent to a concentration of about 1 to 40 g/L and carrying out reverse osmosis filtration; and carrying out lyophilization of the filtered vancomycin. The process for purifying a vancomycin wet body provides high-purity vancomycin, while avoiding degradation of stability during a drying step.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: December 17, 2013
    Assignees: Genotech Co., Ltd., Samyang Biopharmaceuticals Corporation
    Inventors: Jin Suk Cho, Jong Won Yoon, Eun Soo Choi, Jeong Min Kim, Ho Joon Choi, Sung Hag Kim, Seong Kyu Kim, Jae Jong Kim
  • PURIFICATION METHOD OF LACTONE COMPOUNDS CONTAINING UNSATURATED ALKYL GROUP BY EXTRACTION WITH SILVER ION SOLUTION
    Publication number: 20110172413
    Abstract: The present invention relates to a method for separating and purifying a lactone compound with an unsaturated alkyl group from a lactone compound with a saturated alkyl group which is an analog thereof. More specifically, the present invention relates to a method for effectively separating a lactone compound with an unsaturated alkyl group such as FK506 at high purity by extraction with a silver ion (Ag+) solution without use of column chromatography.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Applicant: GENOTECH CO., LTD
    Inventors: Jae Jong Kim, Si Kyu Lim, Mi Ok Lee, Sang Myoun Lim, Bo-mi Lee, Dong Hwan Kim, Keum Soon Lee, Jeoung Hyun Ryu