Flavoxanthin is a natural xanthophyll

pigment A pigment is a powder used to add or alter color or change visual appearance. Pigments are completely or nearly solubility, insoluble and reactivity (chemistry), chemically unreactive in water or another medium; in contrast, dyes are colored sub ...

with a golden-yellow color found in small quantities in a variety of plants. As a

food additive Food additives are substances added to food to preserve flavor or enhance taste, appearance, or other sensory qualities. Some additives, such as vinegar ( pickling), salt ( salting), smoke ( smoking) and sugar ( crystallization), have been used f ...

it used under the

E number E numbers, short for Europe numbers, are codes for substances used as food additives, including those found naturally in many foods, such as vitamin C, for use within the European Union (EU) and European Free Trade Association (EFTA). Commonly ...

E161a as a food coloring although it is not approved for use in the EU or USA. It is listed as

161a in Australia and New Zealand where it is approved for usage as an ingredient in food products.Australia New Zealand Food Standards Code

References

Carotenoids Food colorings Tetraterpenes Benzofurans Cyclohexenes {{Ether-stub