Assertion: keto carotenoid | /r/HasProperty | 3-hydroxy-echinenone
Facets:
Source sentences:
text: In every cardueline finch with red feather coloration for which the pigment composition of feathers has been quantified, the predominant red keto-carotenoid is 3-hydroxy-echinenone (Stradi et al. 1996 1997 ; Stradi 1998 ; Inouye et al. 2001 ; seefor the structure of 3-hydroxy-echinenone and other carotenoids).