Navigation Links
Study shows electron-beam irradiation reduces virus-related health risk in lettuce, spinach
Date:2/6/2012

p>"Fresh produce can be contaminated by enteric viruses through irrigation water containing fecal matter or by wash water that has become contaminated, plus the wild-type poliovirus is a health threat in many parts of the world," he said.

He added that to date the U.S. Food and Drug Administration has approved the use of ionizing irradiation on fresh produce for use on only lettuce and spinach, so the research team studied only those specific leafy greens.

"We selected electron-beam processing as this is the technology that has the potential for worldwide use because it is based on electricity and is basically a switch-on, switch-off type technology," Pillai said.

For their experiments, the team obtained iceberg lettuce and baby spinach samples from local grocery stores, then inoculated the samples with rotavirus and poliovirus and exposed the samples to defined electron-beam doses.

Pillai said results showed that electron-beam irradiation was able to inactivate both rotavirus and poliovirus on lettuce and spinach. The team's quantitative health-risk estimates showed that even if a serving size of about 14 grams of lettuce contained 140 polio virus particles, electron-beam irradiation at 3 kilograys (kGy) will reduce the risk of infection from greater than two in 10 persons, or 20 percent, to approximately six in 100 persons, or six percent. A kilogray is measurement unit of an absorbed ionizing radiation dose.

Similarly, according to study results, for a serving size of spinach contaminated with approximately 10 rotavirus particles, electron-beam irradiation at 3 kilograys will reduce infection risks from about three in 10 persons, or 30 percent, to about five in 100 persons, or five percent.

Pillai, however, noted that electron-beam irradiation is not meant to be used as a "stand-alone" or "clean-up" technology.

"The technology has to be used in conjunction with good agricultural practices in the fiel
'/>"/>

Contact: Dr. Suresh Pillai
spillai@poultry.tamu.edu
979-845-2994
Texas A&M AgriLife Communications
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/29/2014)... its kind to date, researchers have used DNA sequencing ... for autism. Joseph Buxbaum, Ph.D., Icahn School of Medicine ... Broad Institute of Harvard and MIT, and their colleagues ... parents and unrelated people. They identified changes in 107 ... for autism spectrum disorder (ASD) – a jump from ...
(Date:10/29/2014)... have been blamed for increasing the risk of ... family history of schizophrenia, are widely accepted. Others, ... a parasite transmitted by soil, undercooked meat and ... A new study by Gary Smith, professor of ... Pennsylvania,s School of Veterinary Medicine, used epidemiological modeling ...
(Date:10/29/2014)... all the rage. Thousands of scientists worldwide are conducting ... titanium dioxide nanoparticles from sun creams can get through ... from electronic products are as hazardous for the lungs ... food can get into the blood via the intestinal ... are flowing – and the number of scientific projects ...
Breaking Biology News(10 mins):Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3Nanosafety research: The quest for the gold standard 2Nanosafety research: The quest for the gold standard 3
... Researchers at the RIKEN Plant Science Center (PSC) have ... in the model plant Arabidopsis protects cells from harmful ... the journal PLoS Genetics , the finding contributes ... biological processes in both plants and animals, opening the ...
... seals often encounter murky water that impedes their vision; ... Extending their vibration-sensitive whiskers, the mammals are almost as ... if guided by sight. Wolf Hanke and his colleagues ... how harbour seals perceive the world through their flow-sensitive ...
... 2011 UT Southwestern Medical Center researchers have discovered a ... to a treatment to keep cancer cells from spreading. ... 1 (Rasip1) is so specific and central to so many ... form, said Dr. Ondine Cleaver, assistant professor of molecular biology ...
Cached Biology News:Discovery of DNA silencing mechanism reveals how plants protect their genome 2Seals sense shapes using their whiskers to feel wakes 2UT Southwestern researchers find protein that might be key to cutting cancer cells' blood supply 2
(Date:10/31/2014)... , Oct. 31, 2014  Tavistock Development ... by Tavistock Group, celebrated the groundbreaking of the ... City. The 92,000-square-foot, three-story facility ... Central Florida designed specifically for life ... the heart of the 650-acre Lake Nona Medical ...
(Date:10/30/2014)... 30, 2014  Ardelyx, Inc. (NASDAQ: ... cardio-renal, gastrointestinal and metabolic diseases, today announced that ... on Thursday, November 6, 2014. Following the announcement, ... conference call and webcast at 4:30pm ET to ... business update. The live webcast can ...
(Date:10/30/2014)... SoundConnect , an industry leading ... end users the key to turning this already ... adding voice enablement and hybrid audio conferencing. , ... communication tool that includes presence, instant messaging and ... becomes a comprehensive unified communications solution. Adding the ...
(Date:10/30/2014)... 30, 2014 Whitehouse Laboratories has formally ... Stability Testing and Package Test Capacity. Responding to growing ... a dramatic increase in environmental chamber storage space that ... and aging samples to be securely held on site ... capital expenditure has already taken place with the recent ...
Breaking Biology Technology:GuideWell Innovation Center Groundbreaking Hosted by Tavistock Development Company at Lake Nona Medical City 2GuideWell Innovation Center Groundbreaking Hosted by Tavistock Development Company at Lake Nona Medical City 3Ardelyx to Report Third Quarter 2014 Financial Results on November 6, 2014 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3
... researchers have analyzed how the placement of metallic contacts ... material as a factor of junction length, width and ... first quantitative study of electron transport through metal-graphene junctions ... Information on the ways in which attaching metal contacts ...
... have managed to manufacture new polymer-stabilised silver nanoparticles. The ... are used in textiles, floor coatings and paints even ... not entirely known. Finnish researchers now think that exposure ... nanoparticles to polymers. The research results will soon be ...
... , ... ... , , , ... ...
Cached Biology Technology:Study quantifies the electron transport effects of placing metal contacts onto graphene 2Study quantifies the electron transport effects of placing metal contacts onto graphene 3The toxicity of antimicrobial silver in products can be reduced 2The toxicity of antimicrobial silver in products can be reduced 3Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 2Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 3Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 4Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 5Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 6