Featured Research

from universities, journals, and other organizations

Data On Food Antioxidants Aid Research

Date:
November 30, 2007
Source:
US Department of Agriculture
Summary:
A new database provides easy access to antioxidant values for a wide variety of foods, many of which may be excellent sources of healthful compounds. The database will be used by scientists to help guide ongoing research into how antioxidants may correlate to health benefits. For example, many fruits and vegetables are known to be good sources of antioxidant vitamins, such as E, C, and beta carotene, a form of vitamin A. But these natural foods also contain other compounds, collectively known as phytonutrients, that may contribute to health.

Estimates of antioxidant capacities of selected foods. Micromole TE per household measure and grams.
Credit: USDA

Measures of the antioxidant capacities of 277 selected foods were released today by Agricultural Research Service (ARS) scientists. The new database provides easy access to antioxidant values for a wide variety of foods, many of which may be excellent sources of healthful compounds.

Related Articles


The database will be used by scientists to help guide ongoing research into how antioxidants may correlate to health benefits. For example, many fruits and vegetables are known to be good sources of antioxidant vitamins, such as E, C, and beta carotene, a form of vitamin A. But these natural foods also contain other compounds, collectively known as phytonutrients, that may contribute to health.

The database was prepared by ARS researchers at the Nutrient Data Laboratory, part of the agency's Beltsville Human Nutrition Research Center (BHNRC) at Beltsville, Md., in collaboration with colleagues at the ARS Arkansas Children's Nutrition Center in Little Rock. ARS is the U.S. Department of Agriculture's chief scientific research agency.

Many of the fruits, nuts, vegetables and spices listed were analyzed for their Oxygen Radical Absorbance Capacity, known as ORAC, at the Arkansas center. ORAC is one of a number of methods available to evaluate the antioxidant capacities of foods. The method was developed by ARS chemist Ronald Prior with colleagues. Prior also studies the ability of antioxidants to be absorbed and utilized within the human body.

Data on foods analyzed using the ORAC method were also gathered during an extensive search of peer-reviewed, scientific literature, and screened through a USDA-developed, data-quality-evaluation system. Both the screened data and the analyzed data are listed in the database, along with data quality indicators. Antioxidant capacity measures may vary due to factors such the type of cultivar studied and its growing and harvesting conditions, as well as the methods used for a food sample's preparation, processing, and/or analysis.

The new release expands upon the 2004 data release by ARS on estimates of the antioxidant capacity of 171 foods.

The new database is available at http://www.ars.usda.gov/nutrientdata/ORAC


Story Source:

The above story is based on materials provided by US Department of Agriculture. Note: Materials may be edited for content and length.


Cite This Page:

US Department of Agriculture. "Data On Food Antioxidants Aid Research." ScienceDaily. ScienceDaily, 30 November 2007. <www.sciencedaily.com/releases/2007/11/071126154052.htm>.
US Department of Agriculture. (2007, November 30). Data On Food Antioxidants Aid Research. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2007/11/071126154052.htm
US Department of Agriculture. "Data On Food Antioxidants Aid Research." ScienceDaily. www.sciencedaily.com/releases/2007/11/071126154052.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins