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:3/24/2017)... , ... March 24, 2017 , ... The Radiology ... Quest Awards . The annual awards, now in their 12th year, are among the ... the winners. , In 2016, the awards were retooled to recognize achievements in both ...
(Date:3/24/2017)... ... March 24, 2017 , ... ... Premier Center for Shamanic Healing and Spiritual Awakening, proudly presents her Sacred ... 2017. This sacred and spiritual journey during the Summer Solstice will also ...
(Date:3/24/2017)... ... 2017 , ... The law firm of Enea, Scanlan & Sirignano, LLP, ... resident Lauren C. Enea has joined the firm as an associate attorney. Ms. Enea, ... in elder law, Medicaid planning and applications, and Wills, Trusts and Estates. Samantha ...
(Date:3/24/2017)... ... 2017 , ... “Finding Christ Through Social Media: Year One ... the writer’s path toward true communion with God. “Finding Christ Through Social Media: ... creation of published author Lea Michelle Johnson, a follower of Christ, wife and ...
(Date:3/23/2017)... (PRWEB) , ... March 23, 2017 , ... In 2016 ... now estimates that there could be four million Zika-related cases in the Americas within ... with numbers of US cases reported per year skyrocketing to an estimated 329,000. Yet, ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... 2017   The Accreditation Council for Medical ... in the pharmaceutical industry has appointed Dr. ... newly formed scientific advisory board. Dr. Chin will ... first ever medical affairs think tank within the ... the ACMA, please visit  www.medicalaffairsspecialist.org .  Connect ...
(Date:3/24/2017)... DUBLIN , Mar. 24, 2017 Research and ... (IPF) Pipeline Analysis, 2016" report to their offering. ... The IPF pipeline is very strong with ... Corporation, Merck & Co., Inc., Biogen and Sanofi are involved in the ... candidates, of which one is in Phase III stage, 15 are in ...
(Date:3/24/2017)... , March 24, 2017 Today ... Equipment stocks, which are: Neovasc Inc. (NASDAQ: NVCN), Hologic Inc. ... Inc. (NASDAQ: SSH ). These companies are part ... prior gains on Thursday, March 23 rd , 2017, with ... while shares of health care companies in the S&P 500 ...
Breaking Medicine Technology: