karotenoidler

listen to the pronunciation of karotenoidler
التركية - الإنجليزية
carotenoids
plural of carotenoid
A type of oil-soluble pigment having a yellow or orange colour
Yellow and orange pigments that complement the green pigments of chlorophyll by abosrbing wavelengths of light that chloropyhll can not
a group of plant pigments occurring in vegetables: carrots; tomatoes, & in fruits & flowers
pigments in plants responsible for yellow and orange colors
The source of vitamin A activity in tomatoes Carotenoids are plant pigments, responsible for the bright rosy color of tomatoes Carotenoids are fat-soluble, which means they are better absorbed in the presence of oil or fat There are a number of different carotenoids in tomatoes including BETA-CAROTENE and LYCOPENE
provitamin A molecules, found primarily in plant products; there are at least 600 carotenoids found in nature but only about 50 carotenoids have provitamin A activity
are isoprenoid compounds, biosynthesized by tail-to-tail linkage of two C20 geranylgeranyl diphosphate molecules This produces the parent C40 carbon skeleton from which all the individual variations are derived This skeleton can be modified 1) by cyclization at one end or both ends of the molecule to give different end groups, 2) by changes in hydrogenation level and 3) by addition of oxygen-containing functional groups Carotenoids that contain one or more oxygen atoms are known as xanthophylls, the parent hydrocarbons as carotenes For clarity, and to avoid confusion in nomenclature, the use of both end-group prefixes for a carotene is now recommended For example, -carotene is referred to as ,-carotene (in review by Britton, 1995)
Red and orange pigments found in carrots and other vegetables They are precursors of vitamin A