The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 07, 1991

Filed:

Jan. 31, 1990
Applicant:
Inventor:

Bruce A Hay, Groton, CT (US);

Assignee:

Pfizer Inc., New York, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12C / ;
U.S. Cl.
CPC ...
426600 ; 426422 ; 568377 ;
Abstract

A method of converting alpha acids to hop flavors by exposing the alpha acids to an environment capable of substantially simultaneously isomerizing and reducing the alpha acids to form either THIAA or HHIAA. Another aspect of this invention is directed to a method of reducing hop flavors by exposing an isoalpha acid, a dihydroisoalpha acid or a mixture thereof to conditions suitable to reduce said acids to produce THIAA, HHIAA or a mixture thereof at a pH of about 5 to about 12 in a reaction inert, protic solvent. Yet another aspect of this invention is directed to a method of reducing hop flavors comprising exposing an isoalpha acid, a dihydroisoalpha acid or a mixture thereof to conditions suitable to reduce said acids to produce THIAA, HHIAA or a mixture thereof in a reaction inert, aprotic solvent.


Find Patent Forward Citations

Hay, Bruce. (1991). Methods for making tetrahydroisoalpha and hexahydroisoalpha acids (U.S. Patent No. 5013571). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5013571

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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