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[3] [17] Vietnamese gac fruit contains the highest known concentration of the carotenoid lycopene. [18] Although green, kale, spinach, collard greens, and turnip greens contain substantial amounts of beta-carotene. [3] The diet of flamingos is rich in carotenoids, imparting the orange-colored feathers of these birds. [19]
β-Carotene (beta-carotene) is an organic, strongly colored red-orange pigment abundant in fungi, [7] plants, and fruits. It is a member of the carotenes , which are terpenoids (isoprenoids), synthesized biochemically from eight isoprene units and thus having 40 carbons .
The characteristic orange colour is from beta-carotene, making carrots a rich source of vitamin A. A myth that carrots help people to see in the dark was spread as propaganda in the Second World War, to account for the ability of British pilots to fight in the dark; the real explanation was the introduction of radar.
Beta-glucan. Chitin fungi includes other edible mushrooms. Lentinan fruit body of shiitake (Lentinula edodes mycelium (LEM)) and other edible mushrooms. Fructan. Inulins diverse plants, e.g. topinambour, chicory. Lignin stones of fruits, vegetables (filaments of the garden bean), cereals. Pectins fruit skin (mainly apple and, quince), vegetables.
β-Carotene is composed of two retinyl groups, and is broken down in the mucosa of the human small intestine by β-carotene 15,15'-monooxygenase to retinal,a form of vitamin A. β-Carotene can be stored in the liver and body fat and converted to retinal as needed, thus making it a form of vitamin A for humans and some other mammals.
Lutein (/ ˈ lj uː t i ɪ n,-t iː n /; [2] from Latin luteus meaning "yellow") is a xanthophyll and one of 600 known naturally occurring carotenoids.Lutein is synthesized only by plants, and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots.
Experts explain how hair growth vitamins are an easy—and natural—way to get stronger, fuller, and longer strands. Also, discover the best ones money can buy. These 11 Hair Growth Vitamins ...
These contain varying amounts of phytochemicals, including carotenoids for gold/yellow or polyphenols for red or blue cultivars. [45] Carotenoid compounds include provitamin A alpha-carotene and beta-carotene, which are converted to the essential nutrient, vitamin A, during digestion.