A PROCESS FOR THE PREPARATION OF WATER SOLUBLE TURMERIC COLOURANT FORMULATIONS USEFUL AS YELLOW COLOURANT IN FOODS AND BEVERAGES.

摘要

The present invention provides an improved method for the preparation of 4-t-butylcyclohexyl acetate comprising the steps of: reacting 4-t-butylcyclohexanol with acetylating agent selected from acetic anhydride and acetic acid in the mole ratio in the range of 1:10-1:20; and refluxing the above reaction mixture with 2-10 ml of solvent selected from pyridine at a temperature in the range of 100 - 115 deg C for a period of 2-6 hours characterized in that the said refluxing is carried out in the presence of an additive selected from the group consisting of beta cyclodextrine, DM beta-CD, HP beta-CD epichlorohydrin polymer and covering the product by known methods.