Process for the production of isohumulones

Details Process for the production of isohumulones Process for the production of isohumulones

1986-03-27

1988-07-19

Czaja, Donald E.

Food or edible material: processes, compositions, and products

Products per se, or processes of preparing or treating...

Hop derived ingredient, including hopping of wort

426429, C12C 300

Patent

active

047584459

ABSTRACT:
A process for the production of isohumulones from a hop extract is described in which the hop extract is mixed in a ratio of 1:2 to 1:50 with aqueous solution by stirring at elevated temperature to obtain a two-phase system, the aqueous phase is separated and the humulones are precipitated therefrom by addition of an alkaline earth metal salt; thereafter isomerization of the alkaline earth humulates to the corresponding alkaline earth isohumulates and if necessary conversion of the later to the free isohumulones is carried out. The free isohumulones thus obtained are used to impart a bitter flavor to beer or worts.

REFERENCES:
patent: 3298835 (1967-01-01), Hildebrand et al.
patent: 3433642 (1969-03-01), Nakayama et al.
patent: 3451821 (1969-06-01), Todd et al.
patent: 3607298 (1971-09-01), Mitchell
patent: 3765903 (1973-10-01), Clarke et al.
patent: 4160787 (1979-07-01), Moll et al.
patent: 4342791 (1982-08-01), Baker
patent: 4590296 (1986-05-01), Cowles et al.
patent: 4666731 (1987-05-01), Todd

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