Assertion: carotene's source | /r/HasProperty | a subclass of carotenoids
Facets:
Source sentences:
text: Further research by other investigators established xanthophylls as the source of macular yellow.6-9 Xanthophylls are a subclass of carotenoids, a large group of plant pigments responsible for the color of bright fruits and vegetables, autumn leaves, salmon, canaries, and flamingos.