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:8/20/2017)... (PRWEB) , ... August 20, 2017 , ... State Farm ... of 40 national causes up for a $25,000 grant. If the initiative wins, Gals ... bullying – will expand into the Tri-County area of St. Mary’s, Calvert and Charles ...
(Date:8/19/2017)... ... August 18, 2017 , ... President Donald Trump signed into ... provides for greater public access to over-the-counter (OTC) hearing aids. , The measure ... aids without being seen by a certified and licensed audiologist. , “The ...
(Date:8/19/2017)... ... August 19, 2017 , ... ... diverse community of over 1,000 passionate employees, caregivers, volunteers, thought leaders, researchers, educators ... Stonegate changed ownership, it was time to refresh the carpeting with the goal ...
(Date:8/18/2017)... , ... ... ... For Immediate Release                Contact: ... Shows Young Women Seek Sex and Relationship Advice from their ...
(Date:8/18/2017)... Ca (PRWEB) , ... August 18, 2017 , ... ... quality liquid handling handheld devices. Through an educational webinar, they will present the ... users a chance to learn how easy you can automate everyday pipetting tasks. ...
Breaking Medicine News(10 mins):
(Date:7/27/2017)... -- Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH) today reported ... The Company reported second quarter net sales of $1.954 ... period, and an increase of 2.1% on a constant ... from the LDR Holding Corporation acquisition, second quarter 2017 ... or 0.3% on a constant currency basis. ...
(Date:7/26/2017)... -- E.I. Medical Imaging (EIMI) has partnered with Dr. ... the worlds first ultrasound system to be used underwater to ... In preparation for a piece produced by Icon films ... Guttridge approached EIMI with the idea of an underwater ultrasound ... underwater. EIMI produces ...
(Date:7/26/2017)... RIVIERA BEACH, Fla. , July 26, 2017 /PRNewswire/ ... completion of enrollment of our clinical trial evaluating Altemia ... Sickle Cell Anemia (SCA) and Sickle Cell Disease (SCD). ... study to evaluate the efficacy and safety of Altemia ... This trial is conducted under US IND 125274. ...
Breaking Medicine Technology: