Science Current Events | Science News | Brightsurf.com
 

Short, sharp shock treatment for E. coli

January 12, 2012
A short burst of low voltage alternating current can effectively eradicate E. coli bacteria growing on the surface of even heavily contaminated beef, according to a study published in the International Journal of Food Safety, Nutrition and Public Health. The technique offers an inexpensive and easy to implement approach to reducing the risk of food poisoning, which can occur despite handlers complying with hygiene standards.

Food poisoning is a serious public-health issue, especially with the emergence of lethal and highly virulent strains of Escherichia coli (E. coli O157:H7, for example). Infection with this bacterium causes serious diarrhea, dehydration, kidney problems and can lead to serious long-term problems or even be fatal in children, the elderly and people with pre-existing health problems. Tens of thousands of people are affected by E. coli infection each year through eating contaminated beef and other food products. The US Centers for Disease Control and Prevention (CDC) estimates that about 2500 people are hospitalized and there are several dozen deaths each year.

Now, Ajit Mahapatra and colleagues at Fort Valley State University, in Georgia and Virginia Tech have demonstrated that applying a low-voltage alternating current to beef samples inoculated with large numbers of the potentially lethal E. coli O157:H7 can almost completely deactivate the bacterium, which is usually present on the surface of contaminated meat. The team points out that the level of contamination used in their tests far exceeded the contamination that would be seen in commercial carcasses after slaughter.

Previous researchers had demonstrated that electricity can kill bacteria effectively. The study by Mahapatra and colleagues proves efficacy against E. coli O157:H7 at low voltage and low alternating current. It offers a quick and easy way to decontaminate at-risk, but otherwise safe beef without recourse to microbicidal chemicals or other more complicated treatment processes.

Inderscience Publishers


Related E Coli Current Events and E Coli News Articles


Bacteria network for food
Bacteria usually live in species-rich communities and frequently exchange nutrients and other metabolites.

Study: Listeria pathogen is prevalent, persistent in retail delis
Purdue University research shows that standard cleaning procedures in retail delis may not eradicate Listeria monocytogenes bacteria, which can cause a potentially fatal disease in people with vulnerable immune systems.

Bacteria's hidden traffic control
Not unlike an urban restaurant, the success of a bacterial cell depends on three things: localization, localization and localization.

UCI, fellow chemists find a way to unboil eggs
UC Irvine and Australian chemists have figured out how to unboil egg whites - an innovation that could dramatically reduce costs for cancer treatments, food production and other segments of the $160 billion global biotechnology industry, according to findings published today in the journal ChemBioChem.

Rainfall can release aerosols, study finds
Ever notice an earthy smell in the air after a light rain? Now scientists at MIT believe they may have identified the mechanism that releases this aroma, as well as other aerosols, into the environment.

Forget the selfish gene -- the evolution of life is driven by the selfish ribosome
Since the discovery of how DNA encodes genetic information, most research on the evolution of life has focused on genes.

New version of common antibiotic could eliminate risk of hearing loss
On Christmas Eve, 2002, Bryce Faber was diagnosed with a deadly cancer called neuroblastoma. The 2-year-old's treatment, which, in addition to surgery, included massive amounts of radiation followed by even more massive amounts of antibiotics, no doubt saved his life.

Predicting superbugs' countermoves to new drugs
With drug-resistant bacteria on the rise, even common infections that were easily controlled for decades -- such as pneumonia or urinary tract infections -- are proving trickier to treat with standard antibiotics.

Probing bacterial resistance to a class of natural antibiotics
Antimicrobial peptides are a distinctive class of potent, broad-spectrum antibiotics produced by the body's innate immune system-the first line of defense against disease-causing microbes.

Predicting antibiotic resistance
Treating bacterial infections with antibiotics is becoming increasingly difficult as bacteria develop resistance not only to the antibiotics being used against them, but also to ones they have never encountered before.
More E Coli Current Events and E Coli News Articles

Microcosm: E. Coli and the New Science of Life

Microcosm: E. Coli and the New Science of Life
by Carl Zimmer (Author)


A Best Book of the YearSeed Magazine • Granta Magazine • The Plain-DealerIn this fascinating and utterly engaging book, Carl Zimmer traces E. coli's pivotal role in the history of biology, from the discovery of DNA to the latest advances in biotechnology. He reveals the many surprising and alarming parallels between E. coli's life and our own. And he describes how E. coli changes in real time, revealing billions of years of history encoded within its genome. E. coli is also the most engineered species on Earth, and as scientists retool this microbe to produce life-saving drugs and clean fuel, they are discovering just how far the definition of life can be stretched.

E.coli 0157

E.coli 0157
by Mary Heersink (Author)


In this fast-paced, emotionally charged true-life medical drama which verges on science fiction, a mother fights to save her son from a deadly bacteria.

At camp, eleven-year-old Damian Heersink suddenly becomes ill. Within days, an infection ravages through his bloodstream and attaches his organs one by one. A confusion of diagnosis and treatment ensues. Damian is rushed into surgery seven times in the battle to save his life.

Meanwhile the killer microbe, which has attached Damian like the virus in Richard Preston's The Hot Zone, is the cause of epidemics elsewhere. Tough investigators and heroic doctors work around the clock trying to stop its advance.

E.coli 0157 is a powerful human drama about a mother waging a desperate fight for her child's life, grappling with...

E. Coli (Epidemics)

E. Coli (Epidemics)
by Chris Hayhurst (Author)


Book by Hayhurst, Chris

Poisoned: The True Story of the Deadly E. Coli Outbreak That Changed the Way Americans Eat

Poisoned: The True Story of the Deadly E. Coli Outbreak That Changed the Way Americans Eat
by Jeff Benedict (Author)


"Your perfect beach book has arrived. With Poisoned, Jeff Benedict manages to deliver the full literary experience of a medico-legal thriller in a work of nonfiction that, fortuitously enough, could not be more relevant to recent headlines."—The New York TimesIn this riveting work of narrative nonfiction, award-winning journalist and best-selling author Jeff Benedict chronicles the events surrounding the biggest food-poisoning epidemic in US history and how this unprecedented crisis sparked public awareness about unsanitary practices in the fast food industry. Poisoned draws on access to confidential documents and exclusive interviews with the real-life characters at the center of the drama.Jeff Benedict is considered one of America's top nonfiction writers. He is the author of nine...

Kaplan SAT Subject Test Biology E/M 2015-2016 (Kaplan Test Prep)

Kaplan SAT Subject Test Biology E/M 2015-2016 (Kaplan Test Prep)
by Kaplan (Author)


Essential strategies, practice, and review to ace the SAT Subject Test Biology E/M.

Getting into a top college has never been more difficult. Students need to distinguish themselves from the crowd, and scoring well on a SAT Subject Test gives students a competitive edge. Kaplan SAT Subject Test: Biology E/M is the most up-to-date guide on the market with complete coverage of both the content review and strategies students need for success on test day.

Kaplan SAT Subject Test: Biology E/M features:
A full-length diagnostic test2 full-length practice testsFocused chapter summaries, highlights, and quizzesDetailed answer explanationsProven score-raising strategiesEnd-of-chapter quizzes

Kaplan is serious about raising students’ scores—we guarantee students will...

  E. Coli
by Randall McPartland (Author)




Andrew Wyeth: A Secret Life/The Sea Hunters/The Cult at the End of the World/E. Coli 0157 (Reader's Digest Today's Best Nonfiction, Volume 42: 1997)

Andrew Wyeth: A Secret Life/The Sea Hunters/The Cult at the End of the World/E. Coli 0157 (Reader's Digest Today's Best Nonfiction, Volume 42: 1997)
by Richard Meryman (Author), Clive Cussler (Author), David E. Kaplan & Andrew Marshall (Author), Mary Heersink (Author)




EXTERMINATING E.COLI NATURALLY : Discover awesome  herbs and supplements that destroy chronic E.coli gut infection

EXTERMINATING E.COLI NATURALLY : Discover awesome herbs and supplements that destroy chronic E.coli gut infection


This e-book has been written to share how I was able to conquer a chronic E.coli infection in my gut which had tormented me ceaselessly for years and years. For twenty-five years it went undetected, perhaps because the doctors who treated me (unfortunately) always looked for bigger cause for my distressing symptoms like Irritable Bowel Syndrome( caused by “stress”), Ulcers, H.pylori, and even Tuberculosis of the intestine. It was by sheer stroke of luck that the E.Coli was finally detected. But even then it was difficult to treat it since it would invariably return once the course of the Antibiotics ended. The antibiotics were actually making the situation worse, since they were not only destroying the E.Coli, they were also destroying the all-important flora in my gut, thus making it...

E. Coli Infections: Causes, Treatment and Prevention (Bacteriology Research Developments)

E. Coli Infections: Causes, Treatment and Prevention (Bacteriology Research Developments)
by Morgan C. Rogers (Author), Morgan C. Rogers (Editor), Nancy D. Peterson (Editor)


This book presents topical research in the study of E. coli infections, including urinary tract infections caused by E. coli; aptamer-based detection and therapeutics to prevent and treat E. coli infections; Lactoferrin as a novel natural host defence protein; enterotoxigenic escherichia coli colonisation factors; and, the prevention of E. coli using organic acids.

E. coli Plasmid Vectors: Methods and Applications (Methods in Molecular Biology)

E. coli Plasmid Vectors: Methods and Applications (Methods in Molecular Biology)
by Nicola Casali (Editor), Andrew Preston (Editor)


A comprehensive collection of readily reproducible techniques for the manipulation of recombinant plasmids using the bacterial host E. coli. The authors describe proven methods for cloning DNA into plasmid vectors, transforming plasmids into E. coli, and analyzing recombinant clones. They also include protocols for the construction and screening of libraries, as well as specific techniques for specialized cloning vehicles, such as cosmids, bacterial artificial chromosomes, l vectors, and phagemids. Common downstream applications such as mutagenesis of plasmids, recombinant protein expression, and the use of reporter genes, are also described.

© 2015 BrightSurf.com