Navigation Links
Keeping oysters, clams and mussels safe to eat
Date:4/19/2011

This release is available in Spanish.

Eating raw or undercooked mollusks may pose a safety hazard if they are harvested from waters polluted with pathogenic microbes, so U.S. Department of Agriculture (USDA) scientists are studying ways to enhance the food safety of these popular shellfish.

For example, USDA molecular biologist David H. Kingsley at Delaware State University in Dover is exploring new techniques that will decontaminate mollusks while protecting the seafood's flavor, texture, and color.

Kingsley, with USDA's Agricultural Research Service (ARS), is investigating the use of a specialized commercial procedure known as high pressure processing, or HPP, to inactivate viruses. HPP is already used commercially to pasteurize some juices and meats, and by some shellfish processors to deactivate Vibrio bacteria. But Kingsley and colleagues are the first to show that HPP also can inactivate some foodborne viruses.

HPP equipment compresses water to create intense pressures as high as 90,000 pounds per square inch. Normal atmospheric pressure is about 15 pounds per square inch at sea level.

In tests targeting hepatitis A virus, the cause of a contagious liver disease, the team showed that an HPP treatment of 60,000 pounds per square inch of pressure for five minutes inactivated 99.9 percent of the virus in oysters that had been exposed to the pathogen in laboratory tanks.

The hepatitis A studies led to a collaboration with researchers in Italy, where raw or lightly cooked Mediterranean mussels, popular in European markets, are sometimes a vector for the virus. The ARS scientists and colleagues from Italy's University of Bari found that the 5-minute, HPP treatment inactivated 99.9 percent of the virus in North American blue mussels and in Mediterranean mussels.

HPP is not perfect. For instance, the pressure needed to inactivate hepatitis A virus may alter the taste and texture somewhat. Additional research may reveal ways to mitigate these changes.

Kingsley and his co-investigators have published these and other findings in Food and Environmental Virology, Virus Research and other scientific journals. The Dover team is part of the ARS Eastern Regional Research Center in Wyndmoor, Pa.


'/>"/>

Contact: Marcia Wood
marcia.wood@ars.usda.gov
301-504-1662
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

Related biology news :

1. Keeping chromosomes from cuddling up
2. Wistar scientists find key to keeping killer T cells in prime shape for fighting infection, cancer
3. Researchers unzip molecules to measure interactions keeping DNA packed in cells
4. Keeping golf courses green when fresh water is limited
5. Study on keeping nuclear bombs from US ports shows misplaced fear over cargo scanning cost
6. Study: Young Arctic muskoxen better at keeping warm than scientists thought
7. Keeping DNA all in the family
8. Eating right, not supplements, is best at keeping your good bacteria healthy, dietitian says
9. Time-keeping brain neurons discovered
10. Keeping the weight off after a very low-energy diet
11. Keeping an ear out for kin
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/2/2017)... 2017 Who risk to be deprived of ... full report: https://www.reportbuyer.com/product/4313699/ WILL APPLE AND ... Fingerprint sensors using capacitive technology represent a fast ... Idex forecasts an increase of 360% of the number ... the fingerprint sensor market between 2014 and 2017 (source ...
(Date:3/1/2017)... -- Aware, Inc. (NASDAQ: AWRE), a leading supplier of biometrics ... has resigned, effective March 3, 2017, as co-Chief ... Treasurer of Aware citing a desire to retire.  Mr. ... the Board of Directors of Aware. ... co-President, General Counsel has been named Chief Executive Officer, ...
(Date:2/28/2017)... DORTMUND, Germany , February 28, 2017 ... ... Amsterdam from 14 to 16 March, ... to destination, and show how seamless travel is a real benefit ... Materna has added biometrics to their passenger touch point solutions to ...
Breaking Biology News(10 mins):
(Date:3/30/2017)... 30, 2017  Jazz Pharmaceuticals plc (Nasdaq: ... license agreements with Nippon Shinyaku, Co., Ltd. for Defitelio ... and daunorubicin liposome injection), or CPX-351, in ... the agreements, Nippon Shinyaku will receive exclusive rights to ... Japan in return for an upfront payment ...
(Date:3/29/2017)... Washington, PA (PRWEB) , ... March 29, 2017 ... ... largest non-profit, voluntary, health organization dedicated to finding cures for inflammatory bowel diseases ... healthcare professionals, have partnered to deliver exclusive content to ReachMD learners. , ...
(Date:3/29/2017)... March 29, 2017 "Surging application of gesture ... the government are expected to drive the growth of ... gesture recognition market is expected to be worth USD ... 29.63% between 2017 and 2022. The touchless sensing market ... 2022, growing at a CAGR of 17.44% between 2017 ...
(Date:3/29/2017)... Addison, Tx (PRWEB) , ... March 29, 2017 ... ... is honored to announce that Nerium International Mexico has been approved as an ... AMVD works to achieve satisfaction and protection among distributers and consumers in relationship ...
Breaking Biology Technology: