HOME >> BIOLOGY >> NEWS
Study At UNC-CH Shows Chlorinated Water Dramatically Cuts Strawberry Contamination

CHAPEL HILL - Washing strawberries with chlorinated water significantly cuts levels of bacteria, hepatitis A virus and other viruses that indicate possible contamination by animal or human wastes, according to a new study.

The research, conducted at the University of North Carolina at Chapel Hill, showed that after five minutes' exposure to water containing 10 parts per million of chlorine, between 90 and 99 percent of the disease-causing contaminants had disappeared.

Graduate student Michael J. Casteel and his mentor, Dr. Mark Sobsey, professor of environmental microbiology at the UNC-CH School of Public Health, performed the study. They presented their findings Thursday (May 21) at an American Society for Microbiology meeting in Atlanta.

"Contaminated produce has become an important source of food-borne disease in the United States and worldwide," Sobsey said. "Many produce commodities that could become contaminated with human and animal wastes are eaten raw and unprocessed."

Raspberries, strawberries, lettuce and basil leaves have caused outbreaks of food-borne viral and parasitic diseases such as gastroenteritis and infectious hepatitis, he said. Last spring, for example, contaminated strawberries, distributed through U.S. Department of Agriculture-sponsored school lunch programs, caused an outbreak of infectious hepatitis A that sickened more than 150 children and school workers in Calhoun County, Mich.

In their experiments, the UNC-CH researchers washed strawberries in the chlorine solution and then used a simple but efficient method of recovering any remaining microbes to determine how effective washing had been. They found their method "highly successful" in eliminating most viruses and bacteria.

"Our work is important because it demonstrates for the first time that hepatitis A virus can be inactivated on strawberries by a simple chlorination procedure," Sobsey said. "This will mak
'"/>

Contact: David L. Williamson
rdtokids@email.unc.edu
919-962-8596
University of North Carolina at Chapel Hill
21-May-1998


Page: 1 2

Related biology news :

1. Study: Emission of smog ingredients from trees is increasing rapidly
2. Study explores gene transfer to modify underlying course of Alzheimers disease
3. Study reveals why eyes in some paintings seem to follow viewers
4. Study by Israeli scientists provides insight on DNA code
5. Study reveals first genetic step necessary for prostate cancer growth
6. Study of flu patients reveals virus outsmarting key drug
7. Study in Science reveals recreational fishing takes big bite of ocean catch
8. Study suggests cell-cycle triggers might be cancer drug targets
9. Study narrows search for genes placing men at increased risk for prostate cancer
10. Study links high carbohydrate diet to increased breast cancer risk
11. Study explains spatial orientation differences between sexes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/10/2020)... Va. (PRWEB) , ... July 08, 2020 , ... ... Latest on Cell and Gene Therapy Regulation, An FDAnews Webinar, Wednesday, July 22, ... need a comparability study, but what is the most effective way to complete ...
(Date:7/2/2020)... ... July 01, 2020 , ... ... 1a findings of Neihulizumab, a biologic for the treatment of steroid-refractory acute graft-versus-host ... by hemato-oncologist Dr. Paul J Martin of the Fred Hutchinson Cancer Research Center, ...
(Date:7/1/2020)... ... July 01, 2020 , ... Cure Glioblastoma, ... glioblastoma—the most common and aggressive adult brain cancer—announced today the appointments of its ... are charged with supporting the organization’s initiatives and overall vision. , "Senior Fellows ...
Breaking Biology News(10 mins):
(Date:8/3/2020)... Ky. (PRWEB) , ... August 03, 2020 , ... Introducing ... products for transformative growth, , Known as MediVet Biologics since ... brand. , The new Ardent Animal Health will build on its base ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the leading global provider of advanced delivery technologies, development, and manufacturing solutions for ... they have entered into a strategic partnership whereby Catalent will provide support for ...
(Date:7/18/2020)... ... July 16, 2020 , ... After research model surgery and catheter ... great surgery is only the beginning of a successful study, while protecting and accessing ... Brad Gien, Global Head of Surgery from Envigo in a live ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... Technology (MIT) has expanded the company’s exclusive license to include clinical applications ... point-of-care diagnostic market, focusing initially on the SARS-CoV-2 biosensor. CANARY’s™ fast ...
Breaking Biology Technology:
Cached News: