Patents Assigned to Dai-Nippon Sugar Manufacturing Co., Ltd.
  • Method for treatment of microorganisms
    Patent number: 4021303
    Abstract: Microorganisms are chemically treated with alkali at a pH of 10.5 - 12.9 and a temperature of 0.degree. - 30.degree. C., washed with water and mechanically ruptured at a pH of 7 - 10.2.
    Type: Grant
    Filed: December 30, 1975
    Date of Patent: May 3, 1977
    Assignee: Dai-Nippon Sugar Manufacturing Co., Ltd.
    Inventor: Yutaka Nakabayashi
  • Method for treatment of microorganisms
    Patent number: 3962466
    Abstract: A method for treating a microorganism which comprises chemically treating the microorganism with at least one agent selected from the group consisting of an acid, an alkali and a hydrophilic solvent and mechanically rupturing the cell membrane of the resulting chemically treated microorganism using a sand grinder or a three roll mill is disclosed.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: June 8, 1976
    Assignee: Dai-Nippon Sugar Manufacturing Co., Ltd.
    Inventor: Yutaka Nakabayashi