英语词汇“carotene”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

carotene

/ˈkarətiːn

noun [mass noun] Chemistry

An orange or red plant pigment found in carrots and many other plant structures. It is a terpenoid hydrocarbon with several isomers, of which one (beta-carotene) is important in the diet as a precursor of vitamin A.In most cases, early spring grass will contain fairly high levels of carotene (precursor to vitamin A) and will adequately meet the cow's requirement....

The best defense then, is to provide a wide variety of fresh fruits and vegetables to gain as many nutrients as possible, while frequently offering those foods known to be high in carotene or vitamin A.
Laboratory tests only showed low carotene and vitamin A, indicating malabsorption.

Origin

Mid 19th century: coined in German from Latin carota (see carrot).

单词	carotene
释义	carotene /ˈkarətiːn / noun [mass noun] Chemistry An orange or red plant pigment found in carrots and many other plant structures. It is a terpenoid hydrocarbon with several isomers, of which one (beta-carotene) is important in the diet as a precursor of vitamin A.In most cases, early spring grass will contain fairly high levels of carotene (precursor to vitamin A) and will adequately meet the cow's requirement.... The best defense then, is to provide a wide variety of fresh fruits and vegetables to gain as many nutrients as possible, while frequently offering those foods known to be high in carotene or vitamin A. Laboratory tests only showed low carotene and vitamin A, indicating malabsorption. Origin Mid 19th century: coined in German from Latin carota (see carrot).
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