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In plants, the xanthophyll lutein is the most abundant carotenoid and its role in preventing age-related eye disease is currently under investigation. [5] Lutein and the other carotenoid pigments found in mature leaves are often not obvious because of the masking presence of chlorophyll. When chlorophyll is not present, as in autumn foliage ...
In higher plants, there are three carotenoid pigments that are active in the xanthophyll cycle: violaxanthin, antheraxanthin, and zeaxanthin. During light stress, violaxanthin is converted, i.e. reduced, to zeaxanthin via the intermediate antheraxanthin, which plays a direct photoprotective role acting as a lipid-protective anti-oxidant and by ...
The term carotene (also carotin, from the Latin carota, "carrot" [1] [2]) is used for many related unsaturated hydrocarbon substances having the formula C 40 H x, which are synthesized by plants but in general cannot be made by animals (with the exception of some aphids and spider mites which acquired the synthesizing genes from fungi). [3]
This nutrient-packed winter squash is loaded with carotenoids, a group of pigments that are responsible for its signature orange color. While carotenoids are best known for promoting healthy ...
Cucurbita fruits, including squash and pumpkin, typically have high content of the phytochemical pigments called carotenoids. Phytochemicals are chemical compounds produced by plants , generally to help them resist fungi, bacteria and plant virus infections, and also consumption by insects and other animals.
Chlorophyll is the primary pigment in plants; it is a chlorin that absorbs blue and red wavelengths of light while reflecting a majority of green. It is the presence and relative abundance of chlorophyll that gives plants their green color. All land plants and green algae possess two forms of this pigment: chlorophyll a and chlorophyll b.
Spaghetti squash or vegetable spaghetti is a group of cultivars of Cucurbita pepo subsp. pepo. [3] They are available in a variety of shapes, sizes, and colours, including ivory, yellow and orange, with orange having the highest amount of carotene. Its center contains many large seeds. When raw, the flesh is solid and similar to other raw squash.
Like plants, the cyanobacteria use water as an electron donor for photosynthesis and therefore liberate oxygen; they also use chlorophyll as a pigment.In addition, most cyanobacteria use phycobiliproteins, water-soluble pigments which occur in the cytoplasm of the chloroplast, to capture light energy and pass it on to the chlorophylls.
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