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:
May. 12, 1992
Filed:
Feb. 20, 1991
Applicant:
Inventors:
Assignee:
Unilever Patent Holdings BV, Rotterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; A23L / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
435121 ; 43525233 ; 4352528 ; 435803 ; 435822 ; 435849 ; 435880 ;
Abstract
The invention relates to a process for the preparation of indole applicable in flavoring and perfume compositions wherein a micro-organism which does not or hardly metabolize indole is cultured aerobically or anaerobically in a culture medium containing as the substrate tryptophan of natural origin. The produced indole in the fermentation broth may be isolated therefrom with a food grade extraction agent.