Patents Assigned to Societe a Responsabilite Limitee Dite: "Korano"
  • Gel-forming semisynthetic polygalactan metallic oxide complex
    Patent number: 4668779
    Abstract: A flake-powder preparation of a polygalactan having randomly interlaced chains of alternating D and L forms and bonded to fine grain aluminum oxide, silicon oxide and titanium oxide disposed throughout the powder and chemically bonded to the chains to form chemical complexes therewith, is used as a substitute for agar-agar as a culture medium. The powder is soluble in water upon heating to a temperature of 80.degree. C. and forms a reversible gel upon cooling.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: May 26, 1987
    Assignee: Societe a Responsabilite Limitee Dite: "Korano"
    Inventors: Marie-Jos/e/ Brochon, Anne-France Corot