Method of enhancing the bitterness of beer

Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Hop derived ingredient – including hopping of wort

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426651, 426520, C12C 300

Patent

active

047175800

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.

REFERENCES:
patent: 3751266 (1973-08-01), Kuroiwa et al.
patent: 3977953 (1976-08-01), Hirsch et al.
patent: 4298626 (1981-11-01), Laws et al.
patent: 4342791 (1982-08-01), Baker

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