Patents Assigned to Scottish & Newcastle Breweries p/c
  • Method of enhancing the bitterness of beer
    Patent number: 4839189
    Abstract: A method of enhancing the bitterness of beer by oxidation of .beta.-acids obtained from a carbon dioxide extract of hops and introducing the resulting hulupone, preferably at least partially purified, into the beer. The extract contains also .alpha.-acids which are isomerized, separated from the .beta.-acids, and introduced into the beer. The result is a high yield of bitterness-producing material for use in the brewing process.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: June 13, 1989
    Assignee: Scottish & Newcastle Breweries p/c
    Inventors: Ian S. Forrest, James C. Seaton, Michael Moir