Hop flavor which is odor forming impurity free
First Claim
1. A hop flavor composition having an organic phase consisting essentially of a hop flavor selected from unreduced and reduced alpha acids and isoalpha acids and an aqueous phase at a pH of at least 4 and below 8.
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Accused Products
Abstract
Two-phase and salt-containing intermediate products and the final purified hop flavor which is essentially free of impurities and which purified isoalpha acid or isohumulone will therefore not produce fruity, estery, sour aromas when used to flavor beverages, e.g., beer or ale, are disclosed. A rapid test for the detection of such aromas, involving dissolution of the hop flavor in ethanol at a concentration of one-half percent w/v and allowing the solution to stand for four days, allows accelerated determination of the presence or absence of such aromas and the odor-forming impurities which cause the undesirable odors.
80 Citations
25 Claims
- 1. A hop flavor composition having an organic phase consisting essentially of a hop flavor selected from unreduced and reduced alpha acids and isoalpha acids and an aqueous phase at a pH of at least 4 and below 8.
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2. The product of claim 2, wherein the pH is at least 6.
- 7. A beer flavored post-fermentation with an isoalpha acid or isohumulone flavoring agent, selected from unreduced and reduced alpha acids and isoalpha acids, which is essentially odor-causing-impurity free and which therefore has a more reproducible and acceptable flavoring and aroma, said flavoring agent being produced by separation of the flavoring agent as an organic phase from an aqueous solution containing undesirable odor-forming impurities at a pH above 4 in the presence of a food-grade water-soluble salt.
- 11. A composition having an organic phase consisting essentially of a flavoring agent selected from unreduced and reduced alpha acids and isoalpha acids and an aqueous phase which contains undesirable odor-forming impurities at a pH of at least 4, wherein the aqueous phase contains a food-grade water-soluble salt.
- 22. A beer flavored post-fermentation with an isoalpha acid or isohumulone flavoring agent, selected from unreduced and reduced alpha acids and isoalpha acids, which is essentially odor-causing-impurity free and which therefore has a more reproducible and acceptable flavoring and aroma, said flavoring agent being produced by separation of the flavoring agent as an organic phase from an aqueous solution containing undesirable odor-forming impurities at a pH above 4 and below 8.
Specification