BETA-CAROTENE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does beta-carotene mean? 

• BETA-CAROTENE (noun)
  The noun BETA-CAROTENE has 1 sense:

1. an isomer of carotene that is found in dark green and dark yellow fruits and vegetables

  Familiarity information: BETA-CAROTENE used as a noun is very rare.

 Dictionary entry details 

• BETA-CAROTENE (noun)

Sense 1

Meaning:

An isomer of carotene that is found in dark green and dark yellow fruits and vegetables

Classified under:

Nouns denoting substances

Hypernyms ("beta-carotene" is a kind of...):

carotenoid (any of a class of highly unsaturated yellow to red pigments occurring in plants and animals)

carotene; carotin; provitamin A (an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver)

 Context examples 

Carotenoid having a chemical structure similar to beta-carotene with addition of a hydroxyl group at the number 3 carbon atom.

(Beta-cryptoxanthin, NCI Thesaurus/CRCH)

Carotenoid having a chemical structure similar to beta-carotene with carbonyl (C=O) functions at the number 4 and 4' carbon atoms.

(Canthaxanthin, NCI Thesaurus/CRCH)

Co-ingestion of piperidine enhances the bioavailability of various nutrients, including beta-carotene, curcumin, selenium, pyridoxine and coenzyme Q10.

(Piperine Extract (Standardized), NCI Thesaurus)

Spinach is one of the most desirable leafy vegetables with high levels of beta-carotene (provitamin A), lutein, folate, vitamin C, calcium, iron, phosphorus, and potassium.

(World's First True Red Spinach Variety Released, U.S. Department of Agriculture)

The determination of the amount of beta-carotene present in a sample.

(Beta Carotene Measurement, NCI Thesaurus)

Antioxidants include beta-carotene, lycopene, vitamins A, C, and E, and other natural and manufactured substances.

(Antioxidant, NCI Dictionary)

For example, high doses of beta-carotene may increase the risk of lung cancer in smokers.

(Antioxidants, NIH: National Center for Complementary and Alternative Medicine)

Carotenoid having a chemical structure similar to beta-carotene with hydroxyl groups at the number 3 and 3' carbon atoms and carbonyl (C=O) functions at the number 4 and 4' carbon atoms.

(Astaxanthin, NCI Thesaurus/CRCH)

An arbitrary unit of measurement of the specific biological activity of vitamin A, defined by the International Conference for Unification of Formula as equal approximately to 0.30 micrograms of all-trans retinol or to 0.60 micrograms of the provitamin A, all-trans-beta-carotene.

(International Unit of Vitamin A, NCI Thesaurus)