|Time Required||Short (2-5 days)|
|Material Availability||Readily available|
|Cost||Low ($20 - $50)|
|Safety||Adult supervision is recommended. Use caution when using sharp knives and do not eat any of your experiments.|
AbstractAntioxidants have become very popular in the news lately for their potential health and anti-aging properties. Antioxidants work by preventing oxidation reactions that produce free-radicals which can cause harm to the body. Try testing different vitamins for antioxidant activity. How do vitamins A, B, C, and E compare? Do some vitamins have more antioxidant activity than others? What are some other sources of antioxidants? Try testing extracts from proposed sources of antioxidants like coffee, tea, tomatoes, carrots, grapes, and berries (MedlinePlus, 2006). Do nuts contain antioxidants? Does roasting or processing affect the antioxidant properties of nuts? (Hopkins and Watts, 2003) A simple way to test for antioxidant activity is to see if the reagent can keep an apple slice from browning.
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Last edit date: 2017-07-28
- Hopkins, Z., and Watts, R. (2003). Nuts and the Dark Side of Oxygen. Retrieved May 1, 2006, from http://www.sciencenewsforkids.org/articles/20040630/ScienceFairZone.asp
- MedlinePlus. (2006). Antioxidants. Retrieved May 1, 2006, from the Washington, DC: U.S. National Library of Medicine and the National Institutes of Health (NIH) website, http://www.nlm.nih.gov/medlineplus/antioxidants.html
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