Definitions for carotene
ˈkær əˌtin; -tɪncarotene

Princeton's WordNetRate this definition:0.0 / 0 votes

1. provitamin A, carotene, carotinnoun

   an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver

2. carotenenoun

   yellow or orange-red fat-soluble pigments in plants

WiktionaryRate this definition:0.0 / 0 votes

1. carotenenoun

   A class of tetraterpene plant pigments; they vary in colour from yellow, through orange to red, this colour originating in a chain of alternating single and double bonds.

2. carotenenoun

   Specifically, a number of isomers of tetraterpene hydrocarbons, CH, (especially beta-carotene), present in carrots etc, which are converted into vitamin A in the liver.

WikipediaRate this definition:0.0 / 0 votes

1. Carotene

   The term carotene (also carotin, from the Latin carota, "carrot") is used for many related unsaturated hydrocarbon substances having the formula C40Hx, which are synthesized by plants but in general cannot be made by animals (with the exception of some aphids and spider mites which acquired the synthesizing genes from fungi). Carotenes are photosynthetic pigments important for photosynthesis. Carotenes contain no oxygen atoms. They absorb ultraviolet, violet, and blue light and scatter orange or red light, and (in low concentrations) yellow light. Carotenes are responsible for the orange colour of the carrot, after which this class of chemicals is named, and for the colours of many other fruits, vegetables and fungi (for example, sweet potatoes, chanterelle and orange cantaloupe melon). Carotenes are also responsible for the orange (but not all of the yellow) colours in dry foliage. They also (in lower concentrations) impart the yellow coloration to milk-fat and butter. Omnivorous animal species which are relatively poor converters of coloured dietary carotenoids to colourless retinoids, such as humans and chickens, have yellow-coloured body fat, as a result of the carotenoid retention from the vegetable portion of their diet. Carotenes contribute to photosynthesis by transmitting the light energy they absorb to chlorophyll. They also protect plant tissues by helping to absorb the energy from singlet oxygen, an excited form of the oxygen molecule O2 which is formed during photosynthesis. β-Carotene is composed of two retinyl groups, and is broken down in the mucosa of the human small intestine by β-carotene 15,15'-monooxygenase to retinal, a form of vitamin A. β-Carotene can be stored in the liver and body fat and converted to retinal as needed, thus making it a form of vitamin A for humans and some other mammals. The carotenes α-carotene and γ-carotene, due to their single retinyl group (β-ionone ring), also have some vitamin A activity (though less than β-carotene), as does the xanthophyll carotenoid β-cryptoxanthin. All other carotenoids, including lycopene, have no beta-ring and thus no vitamin A activity (although they may have antioxidant activity and thus biological activity in other ways). Animal species differ greatly in their ability to convert retinyl (beta-ionone) containing carotenoids to retinals. Carnivores in general are poor converters of dietary ionone-containing carotenoids. Pure carnivores such as ferrets lack β-carotene 15,15'-monooxygenase and cannot convert any carotenoids to retinals at all (resulting in carotenes not being a form of vitamin A for this species); while cats can convert a trace of β-carotene to retinol, although the amount is totally insufficient for meeting their daily retinol needs.

ChatGPTRate this definition:0.0 / 0 votes

1. carotene

   Carotene is a type of pigment that is found in many different plants. It belongs to a class of pigments called carotenoids, which are responsible for the yellow, orange, and red colors of many fruits and vegetables. Carotene is an antioxidant and can be converted into vitamin A in the body, which is essential for healthy skin, immune function, and vision. There are different types of carotene, including alpha-carotene and beta-carotene.

WikidataRate this definition:0.0 / 0 votes

1. Carotene

   The term carotene is used for several related unsaturated hydrocarbon substances having the formula C40Hx, which are synthesized by plants but cannot be made by animals. Carotene is an orange photosynthetic pigment important for photosynthesis. Carotenes are all coloured to the human eye. They are responsible for the orange colour of the carrot, for which this class of chemicals is named, and for the colours of many other fruits and vegetables. Carotenes are also responsible for the orange colours in dry foliage. They also impart the yellow coloration to milk-fat and butter. Omnivorous animal species which are relatively poor converters of coloured dietary carotenoids to colourless retinoids have yellowed-coloured body fat, as a result of the carotenoid retention from the vegetable portion of their diet. The typical yellow-coloured fat of humans and chickens is a result of fat storage of carotenes from their diets. Carotenes contribute to photosynthesis by transmitting the light energy they absorb from chlorophyll. They also protect plant tissues by helping to absorb the energy from singlet oxygen, an excited form of the oxygen molecule O2 which is formed during photosynthesis.

Editors ContributionRate this definition:0.0 / 0 votes

1. carotene

   A type of pigment and matter existing in a variety of colors and forms.

   Carotene is found in some animals, plants, fruits and vegetables.

   
   

   Submitted by MaryC on February 4, 2017  

Matched Categories

1. • Carotenoid
   • Provitamin

How to pronounce carotene?

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How to say carotene in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of carotene in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of carotene in Pythagorean Numerology is: 9

Examples of carotene in a Sentence

1. Jim White:

   Beta-carotene has been proven to improve a person’s skin and decrease wrinkles, it’s also converted to vitamin A in the body. Vitamin A is essential for healthy vision. 1 cup of pumpkin contains 200 percent more vitamin A than the RDI (recommended dietary intake).

2. Alyssa Burnison:

   Your body converts the beta-carotene to vitamin A, which has been known to support immune function and eye health.

3. Whitney English:

   The not-so-secret healthy ingredient here is sweet potatoes! Instead of refined flour, sugar and butter, these chewy brownies use whole food ingredients like beta-carotene packed sweet potatoes and fiber-rich flaxseeds to create a nutritious, delicious, chocolatey dessert.

4. Alyssa Burnison:

   Carrots are commonly known for their rich sources of vitamin A and carotenoids, specifically beta-carotene, your body converts the beta-carotene to vitamin A, which has been known to support immune function and eye health.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=carotene
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Carotene
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Carotene
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=carotene