Archives
-
Join 343 other subscribers
KSWFoodWorld
Blog Stats
- 431,683 Views
Tag Archives: science
Research Copper Kills Salmonella
Preparing food on copper surfaces may significantly reduce the risk of spreading foodborne pathogens, according to a study by researchers at the University of Arizona.
The study, funded in part by the International Copper Association and published in the May issue of Food Microbiology, compared the ability of various Salmonella strains to survive on both copper and stainless steel surfaces. It comes on the heels of research by co-author Christopher Rensing demonstrating the antimicrobial properties of copper.
Posted in Research, Salmonella
Tagged food safety news, salmonella strains, science, stainless steel surfaces
NZ – Two Dead – Hospital Food – Listeria
Two people have died and three others have become ill in a listeria outbreak believed to have originated in hospital food in two different regions.The affected products have also been recalled from shops as they may contain the bacteria causing the disease.The two elderly women died after contracting listeria, a food-transmitted illness found in meat supplied to the Hawkes Bay Hospital.Two other people contracted the disease but recovered.
Listeria Challenge Test Protocol Evaluation
A comparison was made of two approaches to microbiological challenge testing. Sliced cooked ham was challenge tested with Listeria monocytogenes using the protocol detailed in the Technical Guidance Document on shelf life studies for L.monocytogenes in ready-to-eat foods produced by Agence Française de Securité Sanitare des Aliments (AFSSA now known as ANSES) which required testing of three batches of product, an inoculum level of no more than 100 cfu/g, cultures pre-adapted to chill conditions and a storage regime of 7 d at 8 °C followed by 14 d at 12 °C. This was compared to a more standard industry type of approach using a single batch of product, an inoculum level of between 100 and 1000 cfu/g, cultures grown overnight at optimal temperature and a storage regime of 21 d at 8 °C. The results of the trial showed that the standard Industry approach gave similar results to that of the more complex AFSSA approach with regards to growth potential, lag time and time for a 2 log increase.
Poultry Irradiation ?
CANADA – A microbiologist with the University of Manitoba suggests the widespread adoption of irradiation of poultry could potentially reduce the number of incidents of foodborne illness in Canada by 25 per cent, writes Bruce Cochrane.
Food irradiation is the process of exposing food to ionizing radiation to kill any microorganisms or insects that might be present.
Dr Rick Holley, a food safety and food microbiology professor with the University of Manitoba, observes the association between poultry and campylobacter and salmonella is pretty significant.
Posted in Bacteria, Food Hygiene, Food Safety, Food Testing, Irradiation, Microbiology, Pathogen
Tagged environment, science
US – Shigella Outbreak 45 Cases
Almost three weeks after health officials in Upstate New York announced they were investigating a Shigella outbreak affecting 25 people, the estimated victim count has grown to 45.
The outbreak is affecting residents of Onondaga County, which includes the city of Syracuse and is located in the northern central part of the state.
“There are currently 45 cases of Shigella,” reported the Onondaga County Health Department in a statement to Food Safety News. “This includes confirmed, probable, and what New York State Department of Health is considering suspect (cases). We continue to investigate each and every case for linkages but the source remains unknown.”
Posted in Bacteria, Eurofins Laboratories, Food Hygiene, Food Illness, Food Safety, Pathogen, Shigella
Tagged science
FSAI – Mussel Recall – Possible Illness
Mussels from Cromane Mussels trading as Skellig Seafoods, withdrawn due to a possible association with human illness
Posted in Bacteria, Food Safety, Food Safety Alert, Foodborne Illness, FSAI, Pathogen, Recall
Tagged science
USDA – Recall Ready to Eat Meat Products – Listeria monocytogenes
WASHINGTON, July 7, 2012 – Buona Vita, Inc., a Bridgeton, N.J. establishment, is recalling approximately 324,770 pounds of various frozen, ready-to-eat meat and poultry products due to possible contamination with Listeria monocytogenes, the U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS) announced today.
The packages bear the establishment number “P-954” or “Est. 954” inside the USDA mark of inspection. The products were sold to distribution facilities nationwide. When available, the retail distribution list will be posted on FSIS’ website at www.fsis.usda.gov/FSIS_Recalls/
Open_Federal_Cases/index.asp.
The problem was discovered through microbiological testing by FSIS and the Ohio Department of Agriculture (ODA). FSIS, ODA, and the company have not received reports of illesses due to consumption of these products. Anyone concerned about an illness should contact a healthcare provider.
China Vows to Stamp Out Food Safety Scandals
China has vowed to stamp out major food safety scandals in three years after fears surfaced that athletes might underperform at the Olympics because they were avoiding eating potentially contaminated meat.
Reports about shocking and often bizarre cases of contamination or adulteration appear in the Chinese media on an almost daily basis.
On Tuesday the Legal Daily newspaper reported that police in northeast China had arrested 6 people behind a £1.3m “fake beer” racket. Police claim the gang used hydrochloric acid and formaldehyde to produce counterfeit beer, including the country’s flagship Tsingtao lager.
Posted in Eurofins Laboratories, Food Hygiene, Food Inspections, Food Safety, Food Safety Alert, Hygiene, Research, Uncategorized
Tagged science
US – Recall Cheese Expanded – Listeria monocytogenes
New York State Agriculture Commissioner Darrel Aubertine today warned consumers in the metropolitan New York area, including Queens, the Bronx, and Brooklyn, to not consume certain cheese products made by Mexicali Cheese Corp. located at 91-52 87th Street in Woodhaven, New York due to possible Listeria contamination. This alert, originally issued on Friday, June 29, 2012, has been expanded to include two additional product names that are noted below.
The product is packaged in a rigid 14 oz. plastic tub that displayed the plant number 36-0128 and a code of 071512. This consumer warning affects all packages with this code. The product was packaged in containers bearing the following product names:
- Mexicali Queso Fresco Mexicano, Mexican Style Fresh Cheese;
- Acatlan Queso Fresco, Fresh Cheese;
- Mi Quesito Mexicano, Mexican Cheese; and
- Quesillo Ecuatoriano, Ecuadorian Style Cheese.
A routine sample of the cheese, taken by an inspector from the Division of Milk Control and Dairy Services on June 20, 2012, was subsequently tested by the Department’s Food Laboratory and discovered to be contaminated with Listeria monocytogenes. On June 25, 2012 the manufacturer was notified of a preliminary positive test result and voluntarily recalled the product from their customers. Test results were confirmed on June 29, 2012. Subsequent samples will be taken to verify that the product is free of pathogens.
Listeria monocytogenes is an organism which can cause serious and sometimes fatal infections in young children, frail, or elderly people and others with weakened immune systems. Although healthy persons may suffer only short-term symptoms such as high fever, severe headaches, stiffness, nausea, abdominal pain and diarrhea, Listeria can cause miscarriages and stillbirths among pregnant women.
To date, no illnesses are known by the Department to be associated with this product.
Food Standards Agency – New Q&A E.coli O157
The Food Standards Agency has today published the third edition of the Q&A on its guidance document E.coli O157: control of cross-contamination.
This new version of the Q&A addresses a number of issues that have arisen since the publication of the second edition in November 2011.
Among the issues addressed are:
- an update on the extension of Remedial Action Notices as an enforcement power
- advice on the use of the same food preparation sink for raw and ready-to-eat foods
- clarification of when worktops are considered to be non-food contact surfaces
- whether a change of use from raw to ready-to-eat foods is possible for ‘complex equipment’
- advice on the cleaning of probes






