|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.
Cite This PageGeneral citation information is provided here. Be sure to check the formatting, including capitalization, for the method you are using and update your citation, as needed.
Last edit date: 2018-05-05
- 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
News Feed on This Topic
Ask an ExpertThe Ask an Expert Forum is intended to be a place where students can go to find answers to science questions that they have been unable to find using other resources. If you have specific questions about your science fair project or science fair, our team of volunteer scientists can help. Our Experts won't do the work for you, but they will make suggestions, offer guidance, and help you troubleshoot.
Ask an Expert
If you like this project, you might enjoy exploring these related careers:
Dietitian or NutritionistEver wondered who plans the school lunch, food for patients at a hospital, or the meals for athletes at the Olympics? The answer is dietitians and nutritionists! A dietitian or nutritionist's job is to supervise the planning and preparation of meals to ensure that people—like students, patients, and athletes—are getting the right foods to make them as healthy and as strong as possible. Some dietitians and nutritionists also work to educate people about good food choices so they can cook and eat their own healthy meals. Read more
BiochemistGrowing, aging, digesting—all of these are examples of chemical processes performed by living organisms. Biochemists study how these types of chemical actions happen in cells and tissues, and monitor what effects new substances, like food additives and medicines, have on living organisms. Read more
Food Scientist or TechnologistThere is a fraction of the world's population that doesn't have enough to eat or doesn't have access to food that is nutritionally rich. Food scientists or technologists work to find new sources of food that have the right nutrition levels and that are safe for human consumption. In fact, our nation's food supply depends on food scientists and technologists that test and develop foods that meet and exceed government food safety standards. If you are interested in combining biology, chemistry, and the knowledge that you are helping people, then a career as a food scientist or technologist could be a great choice for you! Read more
Food Science TechnicianGood taste, texture, quality, and safety are all very important in the food industry. Food science technicians test and catalog the physical and chemical properties of food to help ensure these aspects. Read more
News Feed on This Topic
Looking for more science fun?
Try one of our science activities for quick, anytime science explorations. The perfect thing to liven up a rainy day, school vacation, or moment of boredom.Find an Activity