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:5/24/2017)... Lehi, Utah (PRWEB) , ... May 24, 2017 , ... ... “Super Sick Kids: The Surprising Truth about Pediatric Septic Shock” hosted by the Journal ... 31, 2017, at 2 p.m. Eastern time, will be presented by Captain Rommie Duckworth, ...
(Date:5/24/2017)... , ... May 24, 2017 , ... Rob Lowe is ... “Informed,” developed for Public Television. “Informed” brings the public important topics from all aspects ... treatment of the feet and issues surrounding feet and ankles. , Podiatry is essential ...
(Date:5/24/2017)... ... May 24, 2017 , ... ... based sleep diagnostics sensors, announced today it had completed the first phase of ... mix of domestic and rest of world (ROW) authorized dealers specializing in polysomnography ...
(Date:5/23/2017)... ... May 23, 2017 , ... PM360, the premier information ... announced the winners of its 3rd Annual ELITE Awards. The ELITE (Exceptional • ... the healthcare industry today. , Out of more than 500 submissions, 100 winners ...
(Date:5/23/2017)... ... May 23, 2017 , ... The ... professionals, is pleased to announce the organization’s Certified Strength Coach credential has earned ... Strength Coach (CSC) program validates the competency of qualified candidates for jobs in ...
Breaking Medicine News(10 mins):
(Date:5/6/2017)...  May is Stroke Awareness Month and Omron Healthcare ... methods to prevent a stroke: monitor and manage your ... and Prevention, undetected and uncontrolled hypertension is a leading ... leader in personal heart health technology, recently evolved its ... and stroke and is advancing a national public education ...
(Date:5/4/2017)... and SAN DIEGO , May 4, ... (ACOG) 2017 Annual Clinical and Scientific Meeting— OBP Medical ... medical devices, today announced the launch of a new ... OfficeSPEC and ER-SPEC vaginal specula. Already ... extra-small and extra-large sizes makes OBP Medical,s line of ...
(Date:5/3/2017)... , May 3, 2017  Kalorama Information notes ... nine percent next year and this is projected ... hematopoietic stem cell (HSCT) or bone marrow transplants ... technologies are well-suited for this task. This according ... publisher Kalorama Information. The various PCR-based methodologies, Sanger ...
Breaking Medicine Technology: