The method for manufacturing the cyanidin-3-glucoside derived from a mulberry with the food coloring powder

摘要

A method of manufacturing cyanidin-3-glucoside derived from a mulberry as food color powder by extracting and concentrating cyanidin-3-glucoside from a mulberry is provided to obtain food color powder which is stable and is useful as a substitute for artificial synthetic colors. Food color powder is prepared by the steps of: extracting cyanidin-3-glucoside from a mulberry using 70% ethanol and 0.1% citric acid as an extraction solvent; stabilizing cyanidin-3-glucoside by adding 100% by weight of an excipient such as dextrin or maltodextrin to the concentrate; and freeze-drying at 85deg.C under 5mTorr for 48hr and grinding the stabilized cyanidin-3-glucoside.