beta-carotene


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beta-carotene:

see carotenecarotene
, long-chained, unsaturated hydrocarbon found as a pigment in many higher plants, particularly carrots, sweet potatoes, and leafy vegetables. Carotene is thought to assist in trapping light energy for photosynthesis or to aid in chemical reduction.
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; antioxidantantioxidant,
substance that prevents or slows the breakdown of another substance by oxygen. Synthetic and natural antioxidants are used to slow the deterioration of gasoline and rubber, and such antioxidants as vitamin C (ascorbic acid), butylated hydroxytoluene (BHT), and
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; Vitamin A under vitaminvitamin,
group of organic substances that are required in the diet of humans and animals for normal growth, maintenance of life, and normal reproduction. Vitamins act as catalysts; very often either the vitamins themselves are coenzymes, or they form integral parts of coenzymes.
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References in periodicals archive ?
Beta-carotene in pumpkins supply the body with enough vitamin A to improve eyesight as well.
The report predicts the global beta-carotene market to grow with a CAGR of 3.5% over the forecast period from 2019-2025.
Nazari, "Beta-carotene, vitamin E, MDA, glutathione reductase and arylesterase activity levels in patients with active rheumatoid arthritis," Iranian Journal of Public Health, vol.
First, the researchers measured the beta-carotene concentrations found in commercial sweet potato puree and sweet potato flour produced in their lab from fresh Covington sweet potatoes, as well as in three sweet potato bread formulations, using hexane extraction and absorption at 450 nm.
The primary focus of breeding programs to date has been to identify varieties that are rich in beta-carotene, which has roughly twice the VA activity of other PVA-carotenoids based on its chemical structure.
As compared to other antioxidative agents which prevent the establishment of lipid peroxidation, beta-carotene traps free radicals and thus stop chain reaction.
Effects of alpha-tocopherol and beta-carotene supplementation on cancer incidence and mortality: 18-year postintervention follow-up of the Alpha-tocopherol, Beta-carotene Cancer Prevention Study.
Many oncologists are concerned about the possibility that beta-carotene or other antioxidants might interfere with the anticancer effects of chemotherapy or radiation therapy.
The 2013 AREDS2 study found that replacing beta-carotene with lutein plus zeaxanthin and cutting zinc (to 25 mg a day) worked just as well (with no difference in hospitalizations), and that omega-3 fats (EPA and DHA) didn't help.
The first study investigated if fresh avocado, when eaten with high beta-carotene tomato sauce, would promote the absorption of provitamin A carotenoids, and the conversion of these carotenoids to an active form of vitamin A.
Two excellent sources of beta-carotene are cantaloupe and the orange-fleshed honeydew melon, which is a cross between cantaloupe and green-fleshed honeydew.
Kalsec[R] carrot extracts are an excellent replacement for Yellow 5 & 6, mixed carotenoids and synthetic beta-carotene.