Synonymer & Information om | Engelska ordet PROVITAMIN

Exempel på hur man kan använda PROVITAMIN i en mening

• The term "vitamin A" encompasses a group of chemically related organic compounds that includes retinol, retinyl esters, and several provitamin (precursor) carotenoids, most notably β-carotene (beta-carotene).
• Apricots contain various phytochemicals, such as provitamin A beta-carotene and polyphenols, including catechins and chlorogenic acid.
• β is also used in biology, for instance in β-Carotene, a primary source of provitamin A, or the β cells in pancreatic islets, which produce insulin.
• Al-Babili S, Ye X, Lucca P, Potrykus I, Beyer P (2001) Biosynthesis of beta-carotene (provitamin A) in rice endosperm achieved by genetic engineering.
• High intake of provitamin carotenoids (such as beta-carotene) from vegetables and fruits does not cause hypervitaminosis A.
• The seeds, which contain up to 21% oil, are rich in tocopherol (Vitamin E), carotinoides (provitamin A) and micronutrients.
• Vitamin C and vitamin E – which are ubiquitous among raw plant foods – are confirmed as dietary antioxidants, whereas vitamin A becomes an antioxidant following metabolism of provitamin A beta-carotene and cryptoxanthin.
• For example, vitamin A is the generic descriptor for the class of vitamin A vitamers which include retinol, retinal, retinoic acid, and provitamin carotenoids such as beta-carotene among others.
• Yellow-orange paprika colors derive primarily from α-carotene and β-carotene (provitamin A compounds), zeaxanthin, lutein and β-cryptoxanthin, whereas red colors derive from capsanthin and capsorubin.
• Dogs are able to synthesize and convert 7-dehydrocholesterol (provitamin form of vitamin D) to cholecalciferol (inactive form of vitamin D) following exposure to UV light from the sun.

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