PRODUCTION OF HULUPONES

摘要

1404534 Hop flavouring principles for beer &c ATLANTIC RESEARCH INSTITUTE Ltd 12 Sept 1973 [13 Sept 1972] 42789/73 Heading C6E [Also in Division C2] Beer contains a salt of a hulupone prepared by reacting lupulone or material containing lupulone, dissolved or suspended in a polar alkaline medium, with oxygen or an oxygen-containing gas in contact with a catalyst comprising either (a) finely divided noble metal or oxide of a transition metal or of bismuth or a mixture thereof, said noble metal or oxide being applied to a carrier selected from kieselguhr, activated carbon, calcium phosphate, magnesium oxide, dolorrite fired clay or a strongly acid cation exchanger or (b) complexes of noble metals or transition metals.