Winning bitter substances from hops

Details Winning bitter substances from hops Winning bitter substances from hops

1981-04-03

1982-07-20

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4532

Patent

active

043407633

ABSTRACT:
The process for producing hulupones by oxidation of lupulones, using an oxygen-containing gas, in a substantially aqueous, alkaline reaction medium is improved by carrying out the reaction using conditions under which the hulupones precipitate from the reaction medium as a salt, and are then recovered from the reaction medium as a salt. Hulupones are known substances which can be used as bittering agents, particularly in the brewing industry.

REFERENCES:
patent: 2652333 (1953-09-01), Nilsson et al.
patent: 3977953 (1976-08-01), Frhr et al.
patent: 4013721 (1977-03-01), Reininger et al.
Wright, J. Chem. Soc., (London), 1769, (1963).
Sweett et al., Chem. Abstracts, vol. 78, 146,298k, (1973).
Brown et al., J. Chem. Soc., (London), 4774, (1964).

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