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. 23, 1983
Filed:
Mar. 26, 1982
Applicant:
Inventors:
Metty S Langston, Ossining, NY (US);
Il-Young Maing, Burke, VA (US);
Assignee:
General Foods Corporation, White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A23L / ; A23L / ; A23L / ;
U.S. Cl.
CPC ...
426 51 ; 426 52 ; 426 63 ; 426250 ; 426540 ; 426590 ; 8401 ; 8438 ; 2601 / ;
Abstract
Spirulina blue, which is not soluble at low pH, is subjected to enzymatic hydrolysis in an aqueous alkaline medium. The pH of the aqueous system is lowered and the liquid phase is dried to produce a blue dye in dry form which is soluble at low pH. The blue dye is useful as a blue colorant in food products, particularly food products, such as beverages, in which acid solubility is desired.