carotenoid
Speech parts
1. carotenoid - Noun
2. carotenoid - Adjective
Meaning
any of a class of highly unsaturated yellow to red pigments occurring in plants and animals
Source: WordNetSynonyms
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Examples
Adverse effects Test tube containing a dichloromethane solution of lycopene Lycopene is non-toxic and is commonly found in the diet, but cases of excessive carotenoid intake have been reported.
After eight weeks, the group using both antioxidant plus carotenoid supplements and creams had the best results.
Omnivorous animal species which are relatively poor converters of coloured dietary carotenoids to colourless retinoids have yellowed-coloured body fat, as a result of the carotenoid retention from the vegetable portion of their diet.
However, use of the antioxidant cream without carotenoids, along with the antioxidant plus carotenoid supplement, gave poorer results than the supplement alone.
Bright yellow and red carotenoid pigments are commonplace in this family, and thus blue structural colours are rather rare, as the yellow pigments turn the blue color into green.
The carotenoid beta- cryptoxanthin possesses an ionone group and has vitamin activity in humans.