Navigation Links
Copper Alloys Surfaces Touted As Pathogen Killers

Three types of alloy surfaces containing at least 90 per cent copper completely eliminate E. coli O157:H7, according to an ongoing UK study of the pathogen-killing// properties of the metal.

The study gives machine makers a range of options when deciding on the mix of metals they use to coat the insides of their cooking surfaces, thus providing processors with a better means of eliminating E coli contamination in their products. E. Coli O157:H7 is a harmful bacterium primarily found in raw and undercooked ground beef or foods that come into contact with raw meat.

The study could counter a current trend in the food-processing sector to use equipment made of stainless steel in their plants. Stainless steel is believed to be easier to clean and does not corrode as easily as copper under the frequent chemical cleanings needed to remove harmful pathogens.

While FoodProductionDaily.com has previously reported on the general findings of the study, a press release issued yesterday by the University of Southampton found that silicon bronze, a mix of 95 per cent copper, significantly reduced the E. coli strain in 45 minutes and completely eradicated in 75 minutes.

Brass, which is 85 per cent copper killed the bacteria in three hours. Red brass, which is 93 per cent copper, eradicated it in 4.5 hours. Significant reductions were noted after six hours on Ni- Al bronze (81 per cent copper) and yellow brass (61 per cent copper), the scientists stated.

The tests were done at room temperature and the results compared with those obtained from using stainless steel surfaces. The stainless steel had no effect on the viability of the E. coli at room temperature, the scientists stated.

The tests were also repeated at refrigeration temperature, about 39F. While the stainless steel had no effect on the E. coli, the three alloys with the highest copper content -- silicon bronze, red brass and brass -- eliminated it within thre e hours.

Jonathan Noyce, the lead author of the study, said it shows that alloys with 90 per cent or more copper content are proven to have significant disinfection ability at both room and refrigerated temperatures.

"Although stainless steel is easily cleaned, it is not intrinsically effective at reducing bacteria," he said. "It would seem that the food processing and preparation environments would benefit from using materials, like copper, that are inherently antimicrobial."

The study was originally published in the June 2006 issue of Applied and Environmental Microbiology.

The Copper Development Association Inc. and the International Copper Association Ltd funded the study.

Escherichia coli O157 is one of the most serious food-borne pathogens worldwide, causing symptoms ranging from diarrhea to hemorrhagic colitis. Cattle is a major reservoir of E. coli O157, therefore outbreaks are primarily associated with consumption of undercooked ground beef, the researchers stated.

Source-Bio-Bio Technology
SRI
'"/>




Related medicine news :

1. Copper has antiflu properties
2. Higher-Dose Copper IUDs Provide Better Pregnancy Protection
3. High-Fat, Copper-Rich Diets Associated with Increased Rates of Cognitive Decline
4. Cancer Cells Forming Blood Vessels Send Their Copper to the Edge
5. Diet Rich in Copper- Good for Heart
6. Trial Run of Copper to Combat MRSA
7. Controversy Over The Fee Structure In Private Medical Colleges Surfaces Yet Again
8. Meningitis C Surfaces in Toronto:Public Alerted
9. Researchers Discover New Pathogen In Immune-compromised Patient
10. Research Shows That Money May Not Harbour Many Pathogenic Bacteria
11. New Approach Assesses Risk of Water-Borne Pathogen Disease
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/13/2016)... Angeles, California (PRWEB) , ... February 13, 2016 , ... ... help landing a date for the big day. A great outfit, flawless hair, and ... ashtray, they might as well resign themselves to a night at home with Rover. ...
(Date:2/13/2016)... Viejo, CA (PRWEB) , ... February 13, 2016 , ... ... ember particle overlays to footage all within Final Cut Pro X. Each user can ... control over 3D rotation, angle of view, blur, focus offset, hue, saturation, value, contrast, ...
(Date:2/13/2016)... ... February 13, 2016 , ... Christie Medical ... in-kind gift of a VeinViewer® Vision vein finder for the nursing ... start an IV and draw blood, combining technology with traditional technique. , “VeinViewer ...
(Date:2/13/2016)... ... , ... DDi , a Makro company, makes it ... expertise in eClinical Solutions. DDi has built its solution competency with a unique ... clients. DDi provides smarter technology for Clinical Development, Regulatory and Enterprise domains by ...
(Date:2/12/2016)... ... February 12, 2016 , ... The law firm of Morrow, Morrow, Ryan & ... purpose of these scholarships is to encourage applicants to pursue a degree in their ... these two parishes. , “We have available jobs in St. Landry and Evangeline ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... 2016  Kindred Biosciences, Inc. (NASDAQ: KIN ), ... lives of pets, today announced the submission to FDA ... Drug Application (NADA) for Zimeta™ (dipyrone injection, KIND-012).  Positive ... Zimeta for the control of pyrexia (fever) in horses ... --> --> The Chemistry, Manufacturing, and ...
(Date:2/11/2016)... , Feb. 11, 2016   Health 2.0 ... of new health technologies, announced today " 10 Year ... in health tech over the past ten years.   ... nearly a decade, Health 2.0 has served as the ... and connected with thousands of technologies, companies, innovators, and ...
(Date:2/11/2016)... 11, 2016  MiMedx Group, Inc. (NASDAQ: MDXG ... membrane and other birth tissues, human skin and bone, ... market advanced products and therapies, announced today that it ... Healthcare Conference in New York , ... Michael J. Senken , Chief Financial Officer and ...
Breaking Medicine Technology: