Definitions for carotenoids
carotenoids

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1. carotenoids

   Carotenoids (), also called tetraterpenoids, are yellow, orange, and red organic pigments that are produced by plants and algae, as well as several bacteria, and fungi. Carotenoids give the characteristic color to pumpkins, carrots, parsnips, corn, tomatoes, canaries, flamingos, salmon, lobster, shrimp, and daffodils. Carotenoids can be produced from fats and other basic organic metabolic building blocks by all these organisms. It is also produced by endosymbiotic bacteria in whiteflies. Carotenoids from the diet are stored in the fatty tissues of animals, and exclusively carnivorous animals obtain the compounds from animal fat. In the human diet, absorption of carotenoids is improved when consumed with fat in a meal. Cooking carotenoid-containing vegetables in oil and shredding the vegetable both increase carotenoid bioavailability.There are over 1,100 known carotenoids which can be further categorized into two classes, xanthophylls (which contain oxygen) and carotenes (which are purely hydrocarbons and contain no oxygen). All are derivatives of tetraterpenes, meaning that they are produced from 8 isoprene molecules and contain 40 carbon atoms. In general, carotenoids absorb wavelengths ranging from 400 to 550 nanometers (violet to green light). This causes the compounds to be deeply colored yellow, orange, or red. Carotenoids are the dominant pigment in autumn leaf coloration of about 15-30% of tree species, but many plant colors, especially reds and purples, are due to polyphenols. Carotenoids serve two key roles in plants and algae: they absorb light energy for use in photosynthesis, and they provide photoprotection via non-photochemical quenching. Carotenoids that contain unsubstituted beta-ionone rings (including β-carotene, α-carotene, β-cryptoxanthin, and γ-carotene) have vitamin A activity (meaning that they can be converted to retinol). In the eye, lutein, meso-zeaxanthin, and zeaxanthin are present as macular pigments whose importance in visual function, as of 2016, remains under clinical research.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Carotenoids

   The general name for a group of fat-soluble pigments found in green, yellow, and leafy vegetables, and yellow fruits. They are aliphatic hydrocarbons consisting of a polyisoprene backbone.

Anagrams for carotenoids »

1. coordinates

2. co-ordinates

3. coördinates

4. decorations

How to pronounce carotenoids?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say carotenoids in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of carotenoids in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of carotenoids in Pythagorean Numerology is: 6

Examples of carotenoids in a Sentence

1. William Keeton:

   The contrasting temperature between night and day speeds up the loss of chlorophyll from leaves, leaving behind the secondary photosynthetic pigments( carotenoids) that give us the yellow and orange colors.

2. 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. ^ Wikipedia
   https://en.wikipedia.org/wiki/Carotenoids