Navigation Links
Simple device can ensure food gets to the store bacteria free
Date:3/2/2009

WEST LAFAYETTE, Ind. - A Purdue University researcher has found a way to eliminate bacteria in packaged foods such as spinach and tomatoes, a process that could eliminate worries concerning some food-borne illnesses.

Kevin Keener designed a device consisting of a set of high-voltage coils attached to a small transformer that generates a room-temperature plasma field inside a package, ionizing the gases inside. The process kills harmful bacteria such as E. coli and salmonella, which have caused major public health concerns.

Keener's process is outlined in an article released online early in LWT - Food Science and Technology, a journal for the Swiss Society of Food and Technology and the International Union of Food Science and Technology.

"Conceptually, we can put any kind of packaged food we want in there," said Keener, an associate professor in the Department of Food Science. "So far, it has worked on spinach and tomatoes, but it could work on any type of produce or other food."

By placing two high-voltage, low-watt coils on the outside of a sealed food package, a plasma field is formed. In the plasma field, which is a charged cloud of gas, oxygen has been ionized and turned into ozone. Treatment times range from 30 seconds to about five minutes, Keener said.

Ozone kills bacteria such as E. coli and salmonella. The longer the gas in the package remains ionized, the more bacteria that are killed. Eventually, the ionized gas will revert back to its original composition.

The process uses only 30-40 watts of electricity, less than most incandescent light bulbs. The outside of the container only increases a few degrees in temperature, so its contents are not cooked or otherwise altered.

Other methods of ozone treatment require adding devices to bags before sealing them to create ozone or pumping ozone into a bag and then sealing it. Keener's method creates the ozone in the already sealed package, eliminating any opportunity for contaminants to enter while ozone is created.

"It's kind of like charging a battery. We're charging that sample," Keener said. "We're doing it without electrode intrusion. We're not sticking a probe in the package. We can do this in a sealed package."

Keener said testing has worked with glass containers, flexible plastic-like food-storage bags and rigid plastics, such as strawberry cartons and pill bottles. He said the technology also could work to ensure pharmaceuticals are free from bacteria.

According to the Centers for Disease Control and Prevention, about 40,000 cases of Salmonellosis, an infection caused by salmonella, are reported each year in the United States, causing 400 deaths. The CDC reports that about 70,000 E. coli infections are reported each year, causing dozens of deaths.


'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert  

Related medicine news :

1. I Count(TM): 10 Simple Steps to a Healthy Life: Time and Money-Strapped Americans Find Balance, Better Health with New Book
2. Study Shows Simple Measures May Help Prevent Sudden Death Event in Young Athletes
3. Expert Hypnotherapist Dr. Olga Stevko Offers Clients Simple and Powerful Tools for Lasting Weight Loss; Dr. Olga Combines Hypnotherapy and NLP to Transform Clients' Limi
4. Waking Up And Getting Ready: New Green Guide Advocates Simple Living and Earth-Centered Spirituality
5. Simple Exercise Keeps Brain at Top of Its Game
6. College of American Pathologists Offers Tips on Simple Diabetes Prevention in the New Year
7. One Simple Step to Obtain Health, Happiness, and Longevity in 2009
8. Simple model predicts those at risk for chronic kidney disease
9. A simple questionnaire to replace a doctors exam
10. Donate Blood - A Simple and Precious Lifegiving Gift
11. 10 Minutes at a Time: Simple Steps to Get Moving and Reduce Your Risk of Diabetes and Heart Disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Simple device can ensure food gets to the store bacteria free
(Date:2/12/2016)... ... 12, 2016 , ... Mystic Buddha Publishing House presents Valentine’s Day tips on ... of Rama - Dr. Frederick Lenz. , According to Publisher Roger Cantu, ... teacher for teaching and helping others. Valentine’s Day celebrates love in all its ...
(Date:2/12/2016)... Church, VA (PRWEB) , ... February 12, 2016 , ... CDRH Enforcement Trends: , Back ... http://www.fdanews.com/cdrhenforcementtrends , As Winston Churchill said, “Those who don’t learn from ... will show what to expect when they come knocking this year. But that takes time. ...
(Date:2/12/2016)... CITY, California (PRWEB) , ... February 12, 2016 , ... ... announce their participation in Red Carpet Events LA GRAMMY’s Style Lounge Event. Coco Libre ... healthy way to stay hydrated before the big event. The invitation-only gifting suite, held ...
(Date:2/12/2016)... ... 2016 , ... Every winter, someone is killed, injured or loses a home ... Center, part of the Allegheny Health Network, has partnered with Etna Volunteer Fire ... Need Space” campaign. , “Space Heaters Need Space” aims to bring awareness ...
(Date:2/12/2016)... ... February 12, 2016 , ... Vail knee specialist Robert ... to Know in 2016 . The list consists of physicians establishing, leading and partnering ... this list. , An Ambulatory Surgery Center, also known as an ASC, is ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... , Feb. 12, 2016  Eli Lilly and Company (NYSE: ... decided the Alimta® (pemetrexed disodium) vitamin regimen patent would not ... UK, France , Italy ... dilute the product only with dextrose solution.  ... the UK Court of Appeal held that Lilly,s patent would ...
(Date:2/12/2016)... 12, 2016 Indiso ... den ungedeckten medizinischen Bedarf bei Lungen- und ... klinischen Forschungsprogramms bekannt. Das Programm, das sich ... ihrer respiratorischen Funktionen und anderer klinischer Parameter. ... Medizintechnikunternehmen, das sich auf den ungedeckten medizinischen ...
(Date:2/11/2016)... PRO-DEX, INC. (NasdaqCM: PDEX) today announced financial results ... The Company also filed its Quarterly Report on Form 10-Q ... Securities and Exchange Commission today. --> ... --> --> Net sales for the ... 95%, to $5.4 million from $2.8 million for the three ...
Breaking Medicine Technology: