Featured Research

from universities, journals, and other organizations

Culprit Compounds That Block Beans' Healthful Iron Probed

Date:
October 19, 2009
Source:
USDA/Agricultural Research Service
Summary:
Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health. But not all of the little legumes' treasure trove of iron is bioaccessible --- that is, available for our bodies to readily absorb.

Pinto beans.
Credit: Photo by Scott Bauer.

Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health. But not all of the little legumes' treasure trove of iron is bioaccessible—that is, available for our bodies to readily absorb.

Related Articles


In ongoing investigations, Agricultural Research Service (ARS) animal physiologist Raymond P. Glahn and Cornell University co-investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods. Glahn is based at the ARS Robert W. Holley Center for Agriculture and Health in Ithaca, N.Y.

Earlier this year, Glahn, along with former ARS research plant physiologist Ross M. Welch—now retired and working as a collaborator with the Ithaca laboratory—and their university collaborators began tests with poultry as a followup to experiments that relied on Caco-2 human digestive system cells, cultured in petri dishes.

One current study with poultry builds upon a Caco-2 study from several years ago in which Glahn, Welch and colleagues determined that a natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.

Kaempferol belongs to a class of natural substances known as polyphenols. Though scientists have known for decades that polyphenols interfere with absorption of iron from beans, the Ithaca study was apparently the first to pinpoint a specific polyphenol in beans as a possible major player.

There's another side to polyphenols, however. They are antioxidants, and thus are potentially important food components, according to Glahn. So, the scientists are investigating them further.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Culprit Compounds That Block Beans' Healthful Iron Probed." ScienceDaily. ScienceDaily, 19 October 2009. <www.sciencedaily.com/releases/2009/10/091002101318.htm>.
USDA/Agricultural Research Service. (2009, October 19). Culprit Compounds That Block Beans' Healthful Iron Probed. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2009/10/091002101318.htm
USDA/Agricultural Research Service. "Culprit Compounds That Block Beans' Healthful Iron Probed." ScienceDaily. www.sciencedaily.com/releases/2009/10/091002101318.htm (accessed October 30, 2014).

Share This



More Plants & Animals News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Galapagos Tortoises Bounce Back, But Ecosystem Lags

Galapagos Tortoises Bounce Back, But Ecosystem Lags

Newsy (Oct. 29, 2014) The Galapagos tortoise has made a stupendous recovery from the brink of extinction to a population of more than 1,000. But it still faces threats. Video provided by Newsy
Powered by NewsLook.com
Can Drinking Milk Lead To Early Death?

Can Drinking Milk Lead To Early Death?

Newsy (Oct. 29, 2014) Researchers in Sweden released a study showing heavy milk drinkers face an increased mortality risk from a variety of causes. Video provided by Newsy
Powered by NewsLook.com
Obama: The US Will Not 'run and Hide' From Ebola

Obama: The US Will Not 'run and Hide' From Ebola

AP (Oct. 29, 2014) Surrounded by health care workers in the White House East Room, President Barack Obama said the U.S. will likely see additional Ebola cases in the weeks ahead. But he said the nation can't seal itself off in the fight against the disease. (Oct. 29) Video provided by AP
Powered by NewsLook.com
Oatmeal Healthy Recipes and Benefits

Oatmeal Healthy Recipes and Benefits

Buzz60 (Oct. 29, 2014) Oatmeal is a fantastic way to start your day. Whichever way you prepare them, oats provide your body with many health benefits. In celebration of National Oatmeal Day, Krystin Goodwin (@krystingoodwin) has a few recipe ideas, and tips on how to kickstart your day with this wholesome snack! 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


Plants & Animals

Earth & Climate

Fossils & Ruins

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