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.
Patent No.:
Date of Patent:
Aug. 03, 1999
Filed:
Jul. 31, 1997
Keigo Shima, Kawasaki, JP;
Tsutomu Harada, Kawasaki, JP;
Eiichiro Suzuki, Kawasaki, JP;
Yutaka Honda, Kawasaki, JP;
Ajinomoto Co., Inc., Tokyo, JP;
Abstract
Compounds of the formula (1) ##STR1## wherein X and Y are each N or NH, Z is O or OH, (1) when X=N and Y=NH, Z=O, and *1 and *3 are double bonds, (2) when X=NH and Y=N, Z=O, and *2 and *3 are double bonds, (3) when X=N and Y=N, Z=OH, and *2 and *4 are double bonds, and R is a side chain derived from an amino acid; for example, the amino acid is glycine with R=H, alanine with R=CH.sub.3, glutamic acid with R=CH.sub.2 CH.sub.2 COOH, lysine with R=CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2, or leucine with R=CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3, and/or an analogues thereof are useful for imparting a 'thick, sour' taste to foods.