Patent ID: 8945640
Filing Date: 2015-02-03
Classification: A23L,A23P

Abstract:
1. A method of preparing a genipin-rich red colorant from Genipa americana comprising: (a) extracting a (b) hydrolyzing the genipin-rich extract for 30 minutes to 24 hours to produce a hydrolyzed extract; (c) adjusting the pH of the hydrolyzed extract to about 3.5-5.0, to produce an acidified solution; (d) heating the acidified solution to 65 to 85° C. for about 5 to 120 minutes to produce a brown-colored precipitate and removing the precipitate to produce a clear solution, (e) adjusting the pH of the clear solution to about 4-4.6, (f) mixing the solution of step (e) with one or more compounds having a primary amine group in the presence of an organic acid or salt thereof, under anaerobic conditions, for a sufficient time and temperature to produce the genipin-rich red colorant.