Process for the preparation of isomerized hop pellets

Details Process for the preparation of isomerized hop pellets Process for the preparation of isomerized hop pellets

1988-09-30

1990-08-07

Paden, Carolyn

Food or edible material: processes, compositions, and products

Packaged or wrapped product

426600, C12C 300

Patent

active

049466917

ABSTRACT:
A process for the stabilization and isomerization of .alpha.-acids in hops by comminuting and treating hops with calcium or magnesium oxide or hydroxide to form the metal salts and subjecting them to an elevated temperature while isomerization to iso-.alpha.-acids occurs, is characterized in that the mixture of hops and calcium or magnesium oxide or hydroxide is formed into pellets under conditions controlled to minimize isomerization. The pellets are packed in the absence of oxygen and the sealed packs are subjected to controlled heating at about 40.degree. to 55.degree. C. for a period of at least one day, the time, temperature and calcium or magnesium oxide or hydroxide content being selected so as to effect substantially complete isomerization.

REFERENCES:
patent: 3442657 (1969-05-01), Bonnet
patent: 3758310 (1973-09-01), Briem
patent: 3787586 (1974-01-01), Hokanson
patent: 4049834 (1977-09-01), Barewald
patent: 4123561 (1978-10-01), Grant
patent: 4401684 (1983-08-01), Versluys
patent: 4759941 (1988-07-01), Checoye
patent: 4780330 (1988-10-01), Laws
patent: 4828867 (1989-05-01), Hallberg
patent: 4839189 (1989-06-01), Forrest
patent: 4844912 (1989-07-01), Haas
Schwartz 1974 The Brewers Digest Oct. 1974, pp. 46-49.

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