Pfizer Corporation

Cultor Food Science, Inc.

Cultor Corporation

Bruce A Hay

Anthony P Ricketts

Bridget M Cole

Edward K Watkins

Fu-Ning Fung

James E Swenarton, Deceased

Somatostatin antagonists and agonists that act at the SST subtype 2 receptor

Method of synthesizing gamma pyrones

The present invention is directed to a process for the minimization of the development of off flavor or off odor in caramel colored beverages by hydrogenation of the caramel color prior to incorporation into the beverage.

Preventing off-flavor in certain caramel colored beverages

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.

Methods for making tetrahydroisoalpha and hexahydroisoalpha acids

A method of removing objectionable impurities from a hop flavor so that the impurities will not cause a fruity aroma of the beer. The method comprises steam stripping the odor forming impurities from the hop flavor at a pH such that the steam stripping is effective in removing the impurities to produce the purified hop flavor.

Steam stripping of odor forming impurities from hop flavors

Boric acid or aluminum salts, especially aluminum chloride, aluminum sulfate and aluminum nitrate and hydrates of said salts, are superior catalysts for preparation of 3-amino-2,2,4,4-tetramethylthietane via the Leuckart reaction.

Growing community of inventors

Groton, CT, United States of America

Bruce A Hay