Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Organic Acids, Plant Extracts and Irradiation Combine to Beat the Bacteria

28.05.2009
A mixture of some organic acids and some extracts from plants turns out to be enough to greatly reduce pathogenic bacteria on chicken breast meat. Add some irradiation to the mix and it makes a lethal combination against the bacteria.

Food Safety Consortium researchers at the University of Arkansas System’s Division of Agriculture found that they could greatly reduce E. coli O157:H7, Listeria monocytogenes and Salmonella Typhimurium in the chicken breast meat by infusing combinations of organic acids – acetic, citric, lactic, malic and tartaric – into the meat. The experiments were also performed with extracts from green tea and grape seeds in combination with the acids.

Three of the organic acids – malic, citric and tartaric – were most effective against S. Typhimurium and E. coli O157:H7, more than against L. monocytogenes. With irradiation factored in, the results were significant against all the pathogens.

“We want to determine the least amount of plant extracts that we can use and the least amount of irradiation dosage to get the best inhibitory effect,” said Navam Hettiarachchy, a UA food science professor who supervised the project.

Previous research by Hettiarachchy’s research team showed that extracts from grape seed and green tea reduced L. monocytogenes to undetectable levels when applied in combination with nisin, a bacteriocin recognized as a safe food preservative.

The researchers are also using the plant extracts to serve as antioxidants, which minimizes lipid oxidation. Lipid oxidation is a process that causes meat quality to deteriorate by adversely affecting characteristics such as flavor, color and texture.

Hettiarachchy said the research team has examined the effects of irradiation on the chicken’s color and texture and found no significant change.

The research is continuing, but Hettiarachchy said a poultry company has already expressed interest in the project’s findings. Irradiation, however, has not yet been applied widely in the United States as many companies have worried about potential resistance among consumers.

Hettiarachcy suggested that labels on irradiated products could have a brief explanation of irradiation to educate consumers.

“I am hopeful that with time the public will become aware of irradiation processing so that they accept irradiation in processing poultry and meat products for safety against pathogens,” Hettiarachchy said. “A new education component is very important and may be the key for acceptance for irradiated food products by the consumer.”

CONTACTS:

Navam Hettirachchy, Department of Food Science
479-575-4779 / nhettiar@uark.edu

Dave Edmark | Newswise Science News
Further information:
http://www.uark.edu

More articles from Life Sciences:

nachricht New procedure enables cultivation of human brain sections in the petri dish
19.10.2017 | Hertie-Institut für klinische Hirnforschung (HIH)

nachricht The “everywhere” protein: honour for the unravellor of its biology
19.10.2017 | Boehringer Ingelheim Stiftung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Osaka university researchers make the slipperiest surfaces adhesive

18.10.2017 | Materials Sciences

Space radiation won't stop NASA's human exploration

18.10.2017 | Physics and Astronomy

Los Alamos researchers and supercomputers help interpret the latest LIGO findings

18.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>