Carotenoid pigments involved in photosynthesis. Consist of oxygenated carotenes, eg. lutein, violaxanthin and neoxanthine.


the yellow pigments found in leaves, grasses and green plants that are added as pigment to avian skin as well as providing the yellow color of egg yolks
Found on http://afspoultry.ca.uky.edu/extension-glossary
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