Navigation Links
Manual dishwashing study digs up dirt on dish cleanliness

New research at Ohio State University answers an infectious question about eating at restaurants: How clean are manually washed dishes?

Jaesung Lee and Melvin Pascall found that even when they washed dishes in cooler-than-recommended water, numbers of bacteria on the dishware dropped to levels accepted in the Food and Drug Administration's Food Code. They also found that certain foods—especially cheese and milk—can be safe havens for bacteria when dried onto dishware. Lipstick, however, proved to be dangerous to bacteria.

"After washing, there were lipstick stains still left on a few glasses, but it was the least hospitable substance for bacteria," Pascall said. "It seems to have antimicrobial properties, which was a big surprise to us."

Lee, a doctoral candidate of food, agricultural and biological engineering, and Pascall, assistant professor of food science and technology, published their findings in the Journal of Food Engineering.

When restaurants manually wash dishes, they follow a three-step process: Dishes are washed and scrubbed in soapy water, rinsed with clean water, and finally soaked in water containing germ-killing sanitizers. But employees often use water that is cooler than 110 degrees Fahrenheit—the minimum washing temperature recommended by the FDA—because it is uncomfortably hot. The FDA also requires that washing cause a 100,000-fold drop in amounts of bacteria on those dishes.

To investigate effective lower-temperature dishwashing tactics, the researchers coated dishes individually with cheese, eggs, jelly, lipstick, and milk, and then added Escherichia coli and Listeria innocua bacteria. Contaminants like E. coli and L. innocua can survive for long periods of time if they make their way into food dried onto dishes. If those dishes aren't thoroughly washed, they can sometimes cause food-borne disease outbreaks.

After letting the food dry on to the dishes for an hour—a plausible wait in a b
'"/>

Source:Ohio State University


Page: 1 2 3

Related biology news :

1. Bioartificial kidney under study at MCG
2. W.M. Keck Foundation funds study of friendly microbes
3. Yellowstone microbes fueled by hydrogen, according to U. of Colorado study
4. Genome-wide mouse study yields link to human leukemia
5. Clam embryo study shows pollutant mixture adversely affects nerve cell development
6. New imaging method gives early indication if brain cancer therapy is effective, U-M study shows
7. Same mutation aided evolution in many fish species, Stanford study finds
8. Sequencing of marine bacterium will help study of cell communication
9. Genetically modified rice in China benefits farmers health, study finds
10. A new study examines how shared pathogens affect host populations
11. NYU study reveals how brains immune system fights viral encephalitis
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Manual dishwashing study digs dirt dish cleanliness

(Date:8/27/2014)... LAKE CITY, Aug. 27, 2014 University of Utah ... his native Turkey, has won that nation,s highest science ... of Science. , Sekercioglu is among five researchers picked ... and Technical Research Council of Turkey. Three researchers won ... won the Special Award, which is equivalent to the ...
(Date:8/27/2014)... the greatest risk to Europe based upon a proxy ... researchers using a ,big data, approach to scientific research. ... and Global Health ranked the top 100 pathogens affecting ... a system which, they believe, will help governments across ... of infectious diseases, including as a result of climate ...
(Date:8/27/2014)... 27, 2014 /PRNewswire-iReach/ -- The IEEE Engineering in Medicine ... Annual International Conference (EMBC,14), this year being held ... Chicago, Illinois , from Tuesday, August 26 ... students, and industry professionals in science, medicine, and engineering ... http://photos.prnewswire.com/prnh/20140827/140333 This year,s conference theme ...
Breaking Biology News(10 mins):University of Utah biologist wins Turkey's top science prize 2Big data approach identifies Europe's most dangerous human and domestic animal pathogens 2Global Leaders In Science, Medicine, And Engineering Gather For The 36th Annual International Conference Of The IEEE Engineering In Medicine And Biology Society, August 26-30 In Chicago 2Global Leaders In Science, Medicine, And Engineering Gather For The 36th Annual International Conference Of The IEEE Engineering In Medicine And Biology Society, August 26-30 In Chicago 3
... the year,s end-of-life refrigerators, TVs, mobile phones, computers, monitors, ... cord worldwide could fill a line of 40-ton trucks ... Equator. That forecast, based on data compiled by ... of UN organizations, industry, governments, non-government and science organizations ...
... many of the harmful physiological effects of short-term overeating and ... The Journal of Physiology , which is well timed with ... even a few days of energy surplus where you ... impacts. This new study shows that a daily bout of ...
... organisms evolved from earlier life forms. At the ... help complete chemical processessuch as converting food into energyin ... University of Iowa researcher and his colleagues describe the ... as it occurred from bacteria to humans. Their paper, ...
Cached Biology News:World e-waste map reveals national volumes, international flows 2World e-waste map reveals national volumes, international flows 3World e-waste map reveals national volumes, international flows 4World e-waste map reveals national volumes, international flows 5Exercise counters the physiological effects of Christmas excess 2UI researcher studies evolution on the molecular level 2
(Date:8/27/2014)... YORK , Aug. 27, 2014 ... is available in its catalogue: Global ... http://www.reportlinker.com/p02316662/Global-Chelating-Agents-Market-2014-2018.html About Chelating Agent A ... form covalent bonds with metal ions, thereby forming ... that some metal-ions have on chemical processes, formulations, ...
(Date:8/27/2014)... 27, 2014 Guggenheim Securities, the investment banking ... the hiring of veteran equity analyst Charles "Tony" Butler ... Butler will focus on the biotech/biopharma sector. ... of experience and a broad network of relationships in ... Director and Head of Equities at Guggenheim Securities. "His ...
(Date:8/27/2014)... -- ARCH Venture Partners, one of the largest U.S. ... seed and early-stage advanced technology companies, today announced ... than $400 million in subscriptions. ARCH Venture Fund ... more than $150 million. "The enthusiasm ... of our approach to finding and funding new ...
(Date:8/27/2014)... (PRWEB) August 27, 2014 According to ... continues to reshape the look and feel of markets ... demand for higher-quality ingredients will push for more branded, ... market have experienced strong market growth in the last ... in their food and cosmetics to fit a more ...
Breaking Biology Technology:Global Chelating Agents Market 2014-2018 2Global Chelating Agents Market 2014-2018 3Global Chelating Agents Market 2014-2018 4Guggenheim Securities Hires Analyst Charles "Tony" Butler to Expand Healthcare Coverage 2Latest ARCH Venture Partners Fund Closes Above $400 Million 2Latest ARCH Venture Partners Fund Closes Above $400 Million 3Daring to be Different Raw Materials & Ingredient Supply Shortage Fuels Vital Force™ Technology New Ingredient Enhancements 2Daring to be Different Raw Materials & Ingredient Supply Shortage Fuels Vital Force™ Technology New Ingredient Enhancements 3
... BUFFALO, N.Y. -- A novel device, developed by ... simply and conveniently traps, detects and manipulates the ... obstacles that have prevented progress toward spintronics and ... Physical Review Letters, the research paper brings closer ...
... 28 PPD, Inc. (Nasdaq:,PPDI) will release its third ... market closes. The earnings release will be available,on the ... PR Newswire. On Wednesday, October 24, at 9 ... audio webcast to discuss financial results and the,overall business ...
... LAVAL, QC, Sept. 28 /PRNewswire-FirstCall/ - Neptune Technologies ... report its,financial results for the fiscal year ended ... improved its productivity and operational,profitability while continuing its ... Asian markets, resulting in,sustainable sales growth. Financial ...
Cached Biology Technology:Quantum device traps, detects and manipulates the spin of single electrons 2PPD Announces Third Quarter 2007 Earnings Release, Webcast and Conference Call 2Neptune Reports Year End Financial Results - Neptune Records 18% Sales Increase and 43% EBITDA Increase in Year End Results 2Neptune Reports Year End Financial Results - Neptune Records 18% Sales Increase and 43% EBITDA Increase in Year End Results 3
... Validation Service enables early selection of ... by providing quantitative data for sensitivity, ... each antibody. Furthermore quantitative antibody fingerprints ... activity of your antibodies., The full-service ...
... fluorescent microscopy-based imaging system that accurately counts ... calculates cell viability, in a single test. ... variability associated with the subjective interpretation of ... EasyCount ViaSure Kit, up to six tests ...
... new generation of microarrays to detect alternative ... to rapidly elucidate alternatively spliced events in ... drug discovery. The service combines ExonHits proprietary ... customized analysis with Agilents robust microarray platform. ...
... The new Adept CE 4100 ... provides superb flow precision, with software drive ... rates from 0.001-10mL/min are selectable in 0.001mL ... inserts, are inert and bio-compatible., Pumps may ...
Biology Products: