HYDROGENATION OF HOP ACIDS

Hop acids are hydrogenated by mixing hydrogen and a solution of hop acids in carbon dioxide and bringing the mixture into contact with a noble metal catalyst. Advantageously, the process is operated with the hop acids dissolved in supercritical carbon dioxide. Typically, the hydrogenation is used to...

Full description

Saved in:
Bibliographic Details
Main Authors MULLER, ADAM, HILL, COLIN, ANTHONY, SWIDERSKY, PETER
Format Patent
LanguageEnglish
French
Published 24.02.2000
Edition7
Subjects
BEER
BIOCHEMISTRY
BREWING OF BEER
CHEMISTRY
ENZYMOLOGY
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
SPIRITS
VINEGAR
WINE
Online AccessGet full text

Cover

More Information
Summary:Hop acids are hydrogenated by mixing hydrogen and a solution of hop acids in carbon dioxide and bringing the mixture into contact with a noble metal catalyst. Advantageously, the process is operated with the hop acids dissolved in supercritical carbon dioxide. Typically, the hydrogenation is used to convert iso- alpha -acids to tetrahydro-iso- alpha -acids, for which palladium is especially suitable as catalyst. La présente invention concerne l'hydrogénation d'acides du houblon obtenue en mélangeant dans du dioxyde de carbone de l'hydrogène et une solution d'acides du houblon, puis en mettant le mélange en contact avec un catalyseur à métal noble. Il est intéressant pour conduire ce processus que les acides du houblon soient dissous dans du dioxyde de carbone supercritique. En principe, l'hydrogénation permet de convertir des acides iso- alpha en acides tétrahydro-iso- alpha , auquel cas, le palladium est le catalyseur le plus approprié.
Bibliography:Application Number: WO1999GB02601