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Related to provitamin A carotenoids: lutein


Any of a class of yellow to red pigments, including the carotenes and the xanthophylls.
Of or relating to such a pigment.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(kəˈrɒtɪˌnɔɪd) or


(Biochemistry) any of a group of red or yellow pigments, including carotenes, found in plants and certain animal tissues
(Biochemistry) of or resembling carotene or a carotenoid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or ca•rot•i•noid

(kəˈrɒt nˌɔɪd)

1. any of a group of red and yellow pigments, chemically similar to carotene, contained in animal fat and some plants.
2. similar to carotene.
3. pertaining to carotenoids.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.carotenoid - any of a class of highly unsaturated yellow to red pigments occurring in plants and animals
carotene - yellow or orange-red fat-soluble pigments in plants
lycopene - carotenoid that makes tomatoes red; may lower the risk of prostate cancer
beta-carotene - an isomer of carotene that is found in dark green and dark yellow fruits and vegetables
lutein, xanthophyl, xanthophyll - yellow carotenoid pigments in plants and animal fats and egg yolks
zeaxanthin - yellow carotenoid (isomeric with lutein and occurs widely with it) that is the main pigment in yellow Indian corn
antioxidant - substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides
phytochemical - a chemical substance obtained from plants that is biologically active but not nutritive
pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n carotenoide m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
[beta]-carotene, [beta]-cryptoxanthin and [alpha]-carotene are provitamin A carotenoids or vitamin A precursors (Wurtzel et al., 2012).
drying, frying, roasting) result in higher losses of provitamin A carotenoids. Degradation also occurs during the storage of dried products (e.g.
Editor's Note: "These results suggest carotenoids may inhibit tumor initiation, which is compatible with hypothesized mechanisms, including the conversion of provitamin A carotenoids to retinol, which regulates cell growth, differentiation, and apoptosis, and the antioxidant capacity to scavenge reactive oxygen species and prevent DNA damage," stated authors Heather Eliassen of Harvard University and colleagues.
Conventional breeding is used to increase the level of zinc iron and provitamin A carotenoids in staple foods.
The first study investigated if fresh avocado, when eaten with high beta-carotene tomato sauce, would promote the absorption of provitamin A carotenoids, and the conversion of these carotenoids to an active form of vitamin A.
At this purpose, an inverse correlation between plasma levels of provitamin A carotenoids and matrix metalloproteinase-9 was found, suggesting that the benefits of these nutrients can be attributable to reduced degradation of the extracellular matrix in the arterial wall [33].
The vitamin A found in colorful fruits, vegetables, and herbs is called provitamin A carotenoid. Common provitamin A carotenoids found in plant-based foods include beta-carotene, alpha-carotene, and beta-cryptoxanthin.
Some plant foods contain orange pigments called provitamin A carotenoids that the liver can convert to retinol.
The panel also reevaluated the vitamin A activity of provitamin A carotenoids found in green leafy vegetables and dark-colored fruits.
As was the case for our controls, higher concentrations of provitamin A carotenoids in women than in men (Table 2) are also reported in other populations, regardless of dietary habits [17].
The identification of loci associated with provitamin A carotenoids and the development of DNA markers have led to accelerated genetic gain in breeding for increased provitamin A content.