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All Sweet Potatoes Are Not Equal

22.02.2011
Although all varieties of sweet potatoes are nutritious, those that are orange may be the best source for vitamin A.

An article in the February 2011 issue of Comprehensive Reviews in Food Science and Food Safety (CRFSFS) discussed how orange sweet potatoes could help prevent vitamin A deficiency in developing countries where this nutritional disease causes over 600,000 deaths per year--mostly of young children or pregnant women.

Most sweet potatoes in the United States are orange, but in developing countries sweet potatoes can also be white, cream, yellow and purple. According to the author, Betty J. Burri, of Western Human Nutrition Center at the United States Department of Agriculture, in these countries where vitamin A deficiency is common, it would help if the food industry could find ways to increase the production and consumption of orange-fleshed sweet potatoes.

Specifically, food companies could further this goal by developing improved varieties of prolific, hardy, disease and drought-resistant orange-fleshed sweet potatoes while developing and testing different food products made from sweet potatoes. For example, one of the sweet potato products that international programs are testing is sweet potato flour, which they can make into biscuits and buns.

There are many good sources of vitamin A and pro-vitamin A carotenoids in the American diet as well as access to orange sweet potatoes. However, in some parts of Africa the custom is to feed orange sweet potatoes to livestock and white sweet potatoes (which have very little pro-vitamin A carotenoids) to people. There are ongoing educational programs to guide these populations to eat more orange sweet potatoes and improve their vitamin A status. The food industry could help educate people about the types of sweet potatoes that are available, their nutrient content, and the best methods for storing, preparing, and cooking them.

Read the full article in Comprehensive Reviews in Food Science and Food Safety: http://onlinelibrary.wiley.com/doi/10.1111/j.1541-4337.2010.00146.x/abstract

Information from this press release used for online, print, or broadcast content must be attributed to Comprehensive Reviews in Food Science and Food Safety, a publication of the Institute of Food Technologists.

About IFT
The Institute of Food Technologists (IFT) is a nonprofit scientific society. Our individual members are professionals engaged in food science, food technology, and related professions in industry, academia, and government. IFT’s mission is to advance the science of food, and our long-range vision is to ensure a safe and abundant food supply, contributing to healthier people everywhere.

For more than 70 years, the IFT has been unlocking the potential of the food science community by creating a dynamic global forum where members from more than 100 countries can share, learn, and grow. We champion the use of sound science across the food value chain through the exchange of knowledge, by providing education, and by furthering the advancement of the profession. IFT has offices in Chicago, Illinois and Washington, D.C. For more information, please visit ift.org.

Mindy Weinstein | Newswise Science News
Further information:
http://www.ift.org

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