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Lycopene dietary supplements (in oil) may be more efficiently absorbed than lycopene from food. [4] Lycopene is not an essential nutrient for humans, but is commonly found in the diet mainly from dishes prepared from tomatoes. [4] The median and 99th percentile of dietary lycopene intake have been estimated to be 5.2 and 123 mg/d, respectively ...
To date, no X-ray crystal structure of lycopene has been reported. UV spectra of lycopene in hexane. A typical carotenoid, lycopene displays three absorbance maxima. A peak at 360 nm would indicate the presence of certain cis-isomers
Lycopene is abundantly present in marine photosynthetic organisms; possibly it is the precursor in a lycopene-to-lycopane pathway. [15] The detection of lycopa-14(E),18(E)-diene in the green alga Botryococcus braunii strengthens this theory, as the conversion of lycopadiene to lycopane would be simpler and more feasible than that of lycopene to ...
Lycopenemia is a harmless skin condition caused by excessive ingestion of red foods containing lycopene, such as tomatoes, red cabbage, chili beans, and various fruits and berries, which leads to a reddish discoloration of the skin.
Phytoene desaturase (lycopene-forming) (CrtI, four-step phytoene desaturase) (EC 1.3.99.31, 15-cis-phytoene:acceptor oxidoreductase (lycopene-forming)) are enzymes found in archaea, bacteria and fungi that are involved in carotenoid biosynthesis. [2]
All other carotenoids, including lycopene, have no beta-ring and thus no vitamin A activity (although they may have antioxidant activity and thus biological activity in other ways). Animal species differ greatly in their ability to convert retinyl (beta-ionone) containing carotenoids to retinals. Carnivores in general are poor converters of ...
Lycopene β-cyclase (EC 5.5.1.19, CrtL, CrtL-b, CrtY) is an enzyme with systematic name carotenoid beta-end group lyase (decyclizing). [1] [2] [3] [4] [5] [6] This ...
The following other wikis use this file: Usage on ast.wikipedia.org Carotenoide; Usage on bs.wikipedia.org Likopen; Usage on cs.wikipedia.org Lykopen