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Carotenosis is a benign and reversible medical condition where an excess of dietary carotenoids results in orange discoloration of the outermost skin layer. The discoloration is most easily observed in light-skinned people and may be mistaken for jaundice .
[9] [10] After absorbing a photon, the carotenoid transfers its excited electron to chlorophyll for use in photosynthesis. [9] Upon absorption of light, carotenoids transfer excitation energy to and from chlorophyll. The singlet-singlet energy transfer is a lower energy state transfer and is used during photosynthesis. [7]
The two primary isomers of carotene, α-carotene and β-carotene, differ in the position of a double bond (and thus a hydrogen) in the cyclic group at one end (the right end in the diagram at right). β-Carotene is the more common form and can be found in yellow , orange , and green leafy fruits and vegetables .
Select a broad spectrum sunscreen (ideally mineral-based) that’s at least 30 SPF, and be sure to reapply it every two hours. However, you shouldn’t rely on sunscreen alone to protect yourself ...
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Analysts say the mid-range pricing strategy aims to woo price-sensitive customers in countries like China and India and boost adoption in lower-end markets. But on a global scale, Apple still ...
Ocdnctx 02:10, 30 March 2013 (UTC) I disagree about changing name to carotenemia, or duplicating all content here to carotenemia. Elevated serum beta-carotene, if less than what is achieved by 20-30 mg/day, will not necessarily cause discoloration of the skin.David notMD 03:42, 14 January 2017 (UTC)
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