Blue dye derived from the fruit of Genipa americana

摘要

A method for the manufacture of a blue dye stable at pH comprising: A. Peeling the skin of the fruit of Genipa americana, in which said fruit without skin is the pulp of the fruit of Genipa americana; B. Obtain raw liquid juice from the pulp of the fruit of Genipa americana; C. Mix the raw liquid juice with between 0.2 grams and 1.6 grams of glycine per 100 milliliters of raw liquid juice; and, D. Heat the crude liquid juice mixed with glycine at a temperature between 40 ° C and 80 ° C for a period of time from 1 hour to 10 hours.