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:
Sep. 03, 2002
Filed:
Jun. 15, 2000
Applicant:
Inventors:
Akihiro Kishishita, Kawasaki, JP;
Kazutaka Nagashima, Kawasaki, JP;
Assignee:
Ajinomoto Co., Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A23L 1/236 ;
U.S. Cl.
CPC ...
A23L 1/236 ;
Abstract
A homogeneous sweetener composition containing aspartame (APM) and N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine methyl ester having tasting properties similar to sucrose, can be efficiently produced in high yields and with a high purity by reductive alkylation of APM with an at most equimolar amount 3,3-dimethylbutylaldehyde followed by separating the reducing agent from the liquid reaction mixture, and separating of the precipitated crystals of the sweetener composition.