Patents Assigned to Kenkyusho, Rikagaku
  • Thermostable strains of the genus thermus capable of producing a .beta. lactosidase
    Patent number: 5432078
    Abstract: Biologically pure strains of Thermus sp. FERM BP-1678, FERM BP-1679 and FERM BP-1680 have been isolated, and are capable of producing a beta-galactosidase. The beta-galactosidase produced by these strains has specific characteristics wherein the enzyme is optimum at a temperature of 75 to 85 degrees celsius and pH of 4.5 to 6.5. Further, the enzymatic activity is reduced by at most 10% in the presence of 50 millimoles (mM) of galactose and glucose, respectively.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: July 11, 1995
    Assignees: Research Development Corporation of Japan, Kenkyusho, Rikagaku, Morinaga Milk Industry Co., Ltd.
    Inventors: Mitsunori Takase, Kouki Horikoshi