β-Carotene (beta-carotene) is an organic, strongly colored red-orange pigment abundant in fungi, plants, and fruits. It is a member of the carotenes, which...

which: α-carotene is β,ε-carotene; β-carotene is β,β-carotene; γ-carotene (with one β ring and one uncyclized end that is labelled psi) is β,ψ-carotene; δ-carotene...

contain unsubstituted beta-ionone rings (including β-carotene, α-carotene, β-cryptoxanthin, and γ-carotene) have vitamin A activity (meaning that they can...

carotenoids α-carotene (alpha-carotene), β-carotene, γ-carotene (gamma-carotene), and the xanthophyll beta-cryptoxanthin (all of which contain β-ionone rings)...

produce carotenoids, particularly, β-carotene and lycopene. β-carotene is a vitamin A precursor and both of β-carotene and lycopene play a significant role...

Ninlayarn, Thanyanun; et al. (22 May 2012). "Comparative Analysis of β-Carotene Hydroxylase Genes for Astaxanthin Biosynthesis". Journal of Natural Products...

evaporation ponds. To survive, these organisms have high concentrations of β-carotene to protect against the intense light, and high concentrations of glycerol...

following chemical reaction beta-carotene + O2 → 2 all-trans-retinal This is a cleavage reaction which cleaves β-carotene, utilizes molecular oxygen, is...

apples, and bovine blood serum. In terms of structure, β-cryptoxanthin is closely related to β-carotene, with only the addition of a hydroxyl group. It is...

(Oryza sativa) produced through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of the rice. It is intended...

is synthesized from the breakdown of β-carotene. First, the β-carotene 15,15'-monooxygenase cleaves β-carotene at the central double bond, creating an...

{hc}{\Delta E}}} A common example of this phenomenon is in β-carotene.[citation needed] β-carotene (C40H56) is a conjugated polyene with an orange color and...

presence of the carotenoid-producing algae Dunaliella salina, a source of β-carotene, a food-colouring agent and source of vitamin A. The lagoon contains the...

α-Carotene (alpha-carotene) is a form of carotene with a β-ionone ring at one end and an α-ionone ring at the opposite end. It is the second most common...

forms γ-carotene by converting one of the ψ acyclic ends of the lycopene as a β-ring, then subsequently converts the other to form β-carotene. From β-carotene...

their scent. The carotenes α-carotene, β-carotene, γ-carotene, and the xanthophyll β-cryptoxanthin, can all be metabolized to β-ionone, and thus have vitamin...

the cyclization of lycopene to β-carotene is shown in Scheme 2. Next β-carotene reacts with O2 and the enzyme β-carotene ring hydroxylase producing zeaxanthin...

Harvest Plus Project) in Nigeria for their high concentrations of β-carotene. β-carotene is a precursor to Vitamin A. Vitamin A deficiency is a major issue...

ζ-Carotene (zeta-carotene) is a carotenoid. It is different from α-carotene and β-carotene because it is acyclic. ζ-Carotene is similar in structure to...

carotenoid derivatives which elute immediately after β-carotene and γ-carotene. Additional analysis of γ-carotene can be accomplished through the use of an isotope...

Lycopene is an organic compound classified as a tetraterpene and a carotene. Lycopene (from the Neo-Latin Lycopersicon, the name of a former tomato genus)...

contain sporopollenin in some species. Sporopollenin is formed out of β-carotene and is very resistant to biological and chemical degradation. Zygomycete...

principal natural stereoisomer of lutein is (3R,3′R,6′R)-beta,epsilon-carotene-3,3′-diol. Lutein is a lipophilic molecule and is generally insoluble in...

Carrot Carrots can be eaten in a variety of ways. Only 3 percent of the β-carotene in raw carrots is released during digestion: this can be improved to 39%...

food colorings, fabric dyes (azo compounds), pH indicators, lycopene, β-carotene, and anthocyanins. Various factors in a chromophore's structure go into...

name for β-carotene, which has only about 1/6 the biological activity of retinol (vitamin A); the body uses an enzyme to convert β-carotene to retinol...

from carotenoids — either from α-carotene or β-carotene — both of which are carotenes. They also produce it from β-cryptoxanthin, a type of xanthophyll...

A (all-trans-retinols, all-trans-retinyl-esters, as well as all-trans-β-carotene and other provitamin A carotenoids) Vitamin B1 (thiamine) Vitamin B2 (riboflavin)...

high in fat and protein, and has a golden-yellow tinge due to its high β-carotene content. The Guernsey is one of three Channel Island cattle breeds; the...

(registered as 160d) and the EU. Sunless-tanning pills often contain β-carotene. The American Cancer Society states that "Although the US Food and Drug...