Accessory lipophilic photosynthetic pigments in plants and bacteria, including carotenes and xanthophylls; red, orange or yellow, with broad absorption peaks at 450-480nm. Act as secondary pigments of the light-harvesting system, passing energy to chlorophyll and as protective agents, preventing photoxidation of chlorophyll. Found in chloroplasts and also in plastids in some non-photosynthetic tissues, eg. carrot root.
A collection of plant pigments that are found in yellow, orange, red, and dark green fruits and vegetables and may lower the risk of heart disease and certain cancers. Examples are beta-carotene, lycopene, lutein, and zeaxanthin.Found on http://www.johnshopkinshealthalerts.com/reports/nutrition_weight_control/92
Generic term for a class of carotenes and their oxygenated derivatives (xanthophylls) consisting of 8 isoprenoid units joined so that the orientation of these units is reversed at the centre, placing the two central methyl groups in a 1,6 relationship in contrast to the 1,5 of the others. All carotenoids may be formally derived from the acyclic C40...Found on http://www.encyclo.co.uk/local/20973
Major group of accessory pigments in plants; includes beta carotene.
Found on http://www.superglossary.com/Glossary/Science/Biology/
pigments in plants responsible for yellow and orange colors.Found on http://www.butler.edu/herbarium/treeid/treeglossary.html
To the terpenes counting group of dyes with over 800 naturally occurring, different species. They are widespread in the animal and plant kingdom and cause there a yellow, green, orange to reddish color. The carotenoids are at the photosynthesis responsible for the protection against photo-oxidation as well as for energy transfer. The most common ca...Found on https://glossary.wein-plus.eu/carotenoids
Type: Term Pronunciation: ka-rot′e-noydz Definitions: 1. Generic term for a class of carotenes and their oxygenated derivatives (xanthophylls) consisting of 8 isoprenoid units (thus, tetraterpenes) joined so that the orientation of these units is reversed at the center, placing the two central methyl groups in a 1,6 relationship in contrast t...Found on http://www.medilexicon.com/medicaldictionary.php?t=14636
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