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:7/23/2014)... Springer will publish the International Journal of Fuzzy ... the Taiwan Fuzzy Systems Association (TFSA). The cooperation will ... the area of fuzzy research., The International Journal ... papers that deal with the theory, design and application ... extension theory systems ranging from hardware to software. Launched ...
(Date:7/23/2014)... , July 23, 2014   MedNet Solutions ... in clinical study management systems, is pleased to ... proven life sciences industry executive with over 25 ... Officer (COO).  Clareece will be responsible for MedNet,s ... operational efficiency and quality product/service delivery.  ...
(Date:7/23/2014)... the principal bacteria that cause dental caries, has ... time, possibly coinciding with dietary change linked to ... in a study by researchers from the Universitat ... de Genmica para la Biodiversidad (National Laboratory of ... first time, have sequenced genetic material from this ...
Breaking Biology News(10 mins):MedNet Appoints Clareece West As Chief Operating Officer 2Ancient genetic material from caries bacterium obtained for the first time 2
... For the first time, researchers at the University of ... to tap into nitrogen found in rocks, boosting the trees, ... the atmosphere. Given that carbon dioxide is the most ... how rapidly the earth will warm in the future, the ...
... CREEK, Calif.Understanding the flow and processing of carbon in ... surface, is central to understanding global climate cycles, with ... below the ocean surface exists a "twilight zone" where ... this, it is known that microbes resident at these ...
... Examining brain damage that occurs when fetuses in the ... Institute have discovered that damage does not occur randomly but ... fatty molecule called LPA, acting through a receptor that transfers ... mice suggests that LPA may also be linked to the ...
Cached Biology News:Bedrock nitrogen may help forests buffer climate change, study finds 2Bedrock nitrogen may help forests buffer climate change, study finds 3Up from the depths: How bacteria capture carbon in the 'twilight zone' 2Discovery suggests way to block fetal brain damage produced by oxygen deprivation 2Discovery suggests way to block fetal brain damage produced by oxygen deprivation 3
(Date:7/23/2014)... Israel , July 23, 2014 ... a portfolio company of Trendlines Agtech , ... of Israel,s leading agricultural ... , Valentis,s technology combines nanocrystalline cellulose ... pulp waste, with additional nanoparticles to produce highly ...
(Date:7/23/2014)... 2014 Shire plc (LSE: ... specialty biopharmaceutical company, and ArmaGen, a US privately ... and collaboration agreement for AGT-182, an investigational enzyme ... both the central nervous system (CNS) and somatic ... This collaboration strengthens Shire,s rare disease pipeline of ...
(Date:7/23/2014)... California (PRWEB) July 23, 2014 With the ... in HD resolution for more than 15 minutes, Fastec Imaging ... the world of high speed imaging. “Finally, a high speed ... camera we use in our everyday lives.” proclaims Matt Kearney, ... Fastec has always been to demystify and simplify the traditionally ...
(Date:7/23/2014)... 2014 Astra Nova Training ... consultancy and pharma training services, and the ... , a non-profit integrating the expertise and investments ... a global system for clinical trials, are pleased ... the expertise of industry professionals through improved and ...
Breaking Biology Technology:Valentis Nanotech Signs MOU to Integrate Technology in Thermoplastics Production 2Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 2Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 3Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 4Shire Enters Strategic Licensing and Collaboration Agreement With ArmaGen 5Fastec Imaging Introduces the First High Speed Camcorder 2Fastec Imaging Introduces the First High Speed Camcorder 3Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 2Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 3
... Mass., Sept. 17 Interleukin Genetics,(Amex: ILI ... Scientific,Officer, Kenneth Kornman, DDS, PhD, will present at ... Alexandria, VA. The conference will,focus on innovative methods ... Among a group of presenters that includes industry ...
... Bio IV NVS Strategic Fund L.P. invests $10 ... Radius Health ("Radius"),announced today that it has ... to,obtain an exclusive worldwide license (except Japan) to ... drug,candidate. BA058 is a proprietary analog of hPTHrP ...
... Medical School researchers have successfully synthesized a DNA-based memory ... step forward in the emerging field of synthetic biology. ... DNA, researchers in the lab of Professor Pamela Silver, ... Systems Biology, not only reconstructed the dynamics of memory, ...
Cached Biology Technology:Interleukin Genetics President and Chief Scientific Officer to Present at Immunotoxicology V Conference 2Interleukin Genetics President and Chief Scientific Officer to Present at Immunotoxicology V Conference 3Radius Grants Major Pharmaceutical Company Exclusive Option to License BA058 for Osteoporosis 2Scientists synthesize memory in yeast cells 2Scientists synthesize memory in yeast cells 3
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
Normal serum collected from healthy Kunming mice....
Request Info...
Biology Products: