Gardenia
An extract from the fruits of Cape jasmine (Gardenia). The fruit contains a variety of pigments, including crocin, flavonoids, and iridoids. These pigments are extracted to yield varying shades from yellow to blue. Gardenia is currently not permitted for use in the USA or the EU.
Glycerin
Glycerin, or glycerol, is a naturally occurring carbohydrate, which is often used in dispersions or emulsions to increase the wettability and flow-properties of the colour system.
GRAS
Generally Recognized as Safe (GRAS) is a designation by the FDA that designates that a chemical or substance added to food is considered safe and exempt from the Federal Food, Drug and Cosmetic Act food additive tolerance requirements.
Grape Concentrate
An aqueous solution of anthocyanins from grapes or dehydrated water-soluble pigments from the aqueous solution. The outstanding qualities of this colouring food are its typical red-violet colouring and excellent stability.
Grape Skin Extract
Colour extracted from the fresh, deseeded skin remaining after grapes have been pressed for wine-making. In principle, it contains the same components as grape concentrate, but in a different proportion. Other names: Enocianina, Enocyanin, E163.
Green S
A greenish-blue, water-soluble synthetic dye. Other names: Brilliant Green S, E142, CI Food Green 4, CI #44090, CAS #3087-16-9
Guidance Notes
See EU Guidance Notes on Colouring Foods.