Fuente: WIPO "rice" A natural blue flavorant and/or solution that is stable at pH 3.0 up to 7.0 is produced by extracting plant materials with organic solvents and or water with the addition of aluminum and or stannous salts. The solvents are removed thus allowing the flavorant to provide a blue hue when incorporated into products within the 3.0 to 7.0 pH range. The natural blue flavorant can be used in combination with natural yellow flavorants to produce natural green flavorants of various shades.