alpha-Carotene
α-Carotene is a form of carotene with a β-ionone ring at one end and an α-ionone ring at the opposite end. It is the second most common form of carotene.
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β,ε-Carotene | |
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CompTox Dashboard (EPA) |
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| C40H56 | |
| Molar mass | 536.873 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Human physiology
In American and Chinese adults, the mean concentration of serum α-carotene was 4.71 μg/dL. Including 4.22 μg/dL among men and 5.31 μg/dL among women.[1][2]
Dietary sources
The following vegetables are rich in alpha-carotene:[1]
- Yellow-orange vegetables : Carrots (the main source for U.S. adults), Sweet potatoes, Pumpkin, Winter squash
- Dark-green vegetables : Broccoli, Green beans, Green peas, Spinach, Turnip greens, Collards, Leaf lettuce, Avocado
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References
- Li C, Ford ES, Zhao G, Balluz LS, Giles WH, Liu S (March 2011). "Serum α-carotene concentrations and risk of death among US Adults: the Third National Health and Nutrition Examination Survey Follow-up Study". Arch. Intern. Med. 171 (6): 507–15. doi:10.1001/archinternmed.2010.440. PMID 21098341. Archived from the original on 29 November 2010. Lay summary – Medical News Today (22 November 2010).
- Alpha-carotene Linked to Lower Mortality Rates Archived 2012-05-13 at the Wayback Machine, Tufts Health and Nutrition Letter, March 2011
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