Featured Research

from universities, journals, and other organizations

New Processing Method May Inactivate Norovirus In Foods

Date:
January 25, 2007
Source:
American Society For Microbiology
Summary:
High pressure processing may inactivate human norovirus strains in foods say researchers from the U.S. They report their findings in the January 2007 issue of the journal Applied and Environmental Microbiology.

High pressure processing may inactivate human norovirus strains in foods say researchers from the U.S. They report their findings in the January 2007 issue of the journal Applied and Environmental Microbiology.

Related Articles


Norovirus infection is a common problem worldwide with 40% of reported cases in the U.S. alone attributed to food borne outbreaks. Shellfish and produce are two sources most frequently associated with norovirus infections due to the fact that uncooked foods can often become contaminated following exposure to contaminated irrigation waters or after human handling in the case of produce. Currently, there is no adequate intervention for contaminated shellfish because viruses can remain live for several days. Lack of suitable laboratory animals and the ability to develop the virus in vitro has hampered many prior research attempts.

A recently identified strain of murine norovirus (MNV-1) was developed in vitro and has more biochemical, pathological, and molecular similarities to human noroviruses than any previously used for research. In the study MNV-1 was evaluated for susceptibility to high pressure processing ranging from 2 to 15 minutes at temperatures between 41 and 86 degrees Fahrenheit. Results showed that a 5 minute treatment differing in pressure range was sufficient to inactivate the virus at a variety of temperatures, however, researchers found that inactivation was enhanced when applied at refrigeration temperatures. This study also demonstrated that 5 minutes of high pressure processing at 41 degrees Fahrenheit completely inactivated the MNV-1 strain in oyster tissue.

"This work is the first demonstration that norovirus can be inactivated by high pressure and suggests good prospects for inactivation of nonpropagable human norovirus strains in foods," say the researchers.

(D.H. Kingsley, D.R. Holliman, K.R. Calci, H. Chen, G.J. Flick. 2007. Inactivation of a norovirus by high-pressure processing. Applied and Environmental Microbiology, 73. 2: 581-585)


Story Source:

The above story is based on materials provided by American Society For Microbiology. Note: Materials may be edited for content and length.


Cite This Page:

American Society For Microbiology. "New Processing Method May Inactivate Norovirus In Foods." ScienceDaily. ScienceDaily, 25 January 2007. <www.sciencedaily.com/releases/2007/01/070124120507.htm>.
American Society For Microbiology. (2007, January 25). New Processing Method May Inactivate Norovirus In Foods. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2007/01/070124120507.htm
American Society For Microbiology. "New Processing Method May Inactivate Norovirus In Foods." ScienceDaily. www.sciencedaily.com/releases/2007/01/070124120507.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) — The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Newsy (Nov. 25, 2014) — Need another reason to eat yogurt every day? Researchers now say it could reduce a person's risk of developing type 2 diabetes. Video provided by Newsy
Powered by NewsLook.com
Madagascar Working to Contain Plague Outbreak

Madagascar Working to Contain Plague Outbreak

AFP (Nov. 24, 2014) — Madagascar said Monday it is trying to contain an outbreak of plague -- similar to the Black Death that swept Medieval Europe -- that has killed 40 people and is spreading to the capital Antananarivo. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Are Female Bosses More Likely To Be Depressed?

Are Female Bosses More Likely To Be Depressed?

Newsy (Nov. 24, 2014) — A new study links greater authority with increased depressive symptoms among women in the workplace. Video provided by Newsy
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