Featured Research

from universities, journals, and other organizations

Is green sheen on bacon harmful? Nitrites in bacon and other meats explored

Date:
May 2, 2012
Source:
University of Oklahoma
Summary:
As with many concerned consumers, researchers wondered if the green color sometimes seen in bacon is, in fact, harmful to human health. Recently, these scientists took an important first step in answering this question by determining the structure of the green pigment responsible for this "nitrite burn."

As with many concerned consumers, a team of University of Oklahoma researchers wondered if the green color sometimes seen in bacon is, in fact, harmful to human health. Recently, these OU scientists took an important first step in answering this question by determining the structure of the green pigment responsible for this 'nitrite burn.'

The research team led by George Richter-Addo and Jun Yi, Department of Chemistry and Biochemistry in the OU College of Arts and Sciences, discovered that the green pigment seen in nitrite-cured bacon and other meats is due to an unusual chemical reaction of nitrites with the meat protein myoglobin. But more research is needed on the effects of 'nitrite burn,' particularly on the physiological function of myoglobin and other proteins.

"No one really knows if 'nitrite burn' is bad for you or not because there is so little information about the physiological effects on humans," remarks Richter-Addo. "But, we have discovered that a simple chemical process, which inhibits the flow of oxygen in the blood and degrades the blood protein hemoglobin, causes the blood to turn from red to green. Identifying the degraded blood components allowed us to characterize the related green pigment seen in bacon and other meats."

For centuries, nitrites have been used as a preservative to keep meats fresh, but very little is known about the harmful effects of nitrites on the body. While nitrites give meat its fresh color, add flavor and kill toxic bacteria, when used improperly, nitrites create cancer-causing chemicals. Naturally, consumers are concerned with the discoloration seen in bacon -- a concern OU researchers share, says Richter-Addo.

He and his team will continue to look for answers through research to determine if the discoloration of bacon and other meats, such as chicken, beef and pork, is an indication of a cancer-causing component. In the future, the OU research group will collaborate with agencies, such as the U.S. Department of Agriculture, to study nitrites in plants and vegetables.


Story Source:

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


Cite This Page:

University of Oklahoma. "Is green sheen on bacon harmful? Nitrites in bacon and other meats explored." ScienceDaily. ScienceDaily, 2 May 2012. <www.sciencedaily.com/releases/2012/05/120502123433.htm>.
University of Oklahoma. (2012, May 2). Is green sheen on bacon harmful? Nitrites in bacon and other meats explored. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2012/05/120502123433.htm
University of Oklahoma. "Is green sheen on bacon harmful? Nitrites in bacon and other meats explored." ScienceDaily. www.sciencedaily.com/releases/2012/05/120502123433.htm (accessed July 30, 2014).

Share This




More Plants & Animals News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rodents Rampant in Gardens Around Louvre

Rodents Rampant in Gardens Around Louvre

AP (July 29, 2014) Food scraps and other items left on the grounds by picnickers brings unwelcome visitors to the grounds of the world famous and popular Louvre Museum in Paris. (July 29) Video provided by AP
Powered by NewsLook.com
Jane Goodall Warns Great Apes Face Extinction

Jane Goodall Warns Great Apes Face Extinction

AFP (July 29, 2014) The world's great apes face extinction within decades, renowned chimpanzee expert Jane Goodall warned Tuesday in a call to arms to ensure man's closest relatives are not wiped out. Duration: 00:58 Video provided by AFP
Powered by NewsLook.com
How Your Face Can Leave A Good Or Bad First Impression

How Your Face Can Leave A Good Or Bad First Impression

Newsy (July 29, 2014) Researchers have found certain facial features can make us seem more attractive or trustworthy. Video provided by Newsy
Powered by NewsLook.com
Rat Infestation at Paris' Tuileries Garden

Rat Infestation at Paris' Tuileries Garden

AFP (July 29, 2014) An infestation of rats is causing concern among tourists at Paris' most famous park -- the Tuileries garden next to the Louvre Museum. Duration: 00:54 Video provided by AFP
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:
from the past week

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