Archive of December, 2021

Listeria monocytogenes is back in the News
Blue Bell Recall is due to Aspen Hill In October 2016, BioExpert reported that cookie dough contaminated with Listeria Listeria monocytogenes is back in the News from Aspen Hills (Garner, IA) has resulted in a number of recalls including Blue Bell ice cream. Recently, the FDA inspectors have confirmed that Listeria found in Blue Bell ice cream, prompting the recall of its products in October 2016, came from Aspen Hills. Federal inspections of the cookie dough maker Aspen Hill confirmed, using Whole Genome Sequencing (WGS) analysis, that the Listeria isolated from Aspen Hill was found in the Blue Bell product. This settled the dispute between the...
Rapid Methods for Food Pathogens- an Update
The USDA / FSIS recently updated the list of Foodborne Pathogen Test Kits Validated by Independent Organizations. The rapid detection of pathogens in food is important to ensure the safety of consumers. Traditional methods to detect foodborne pathogens rely on time-consuming growth in culture media, followed by isolation, biochemical identification, and sometimes serology. Recent advances in technology result in faster detection and identification of pathogens, more convenient, more sensitive, and more specific than conventional methods. These new methods are often referred to as “rapid methods”. It is important to remember that in most foods, rapid methods still lack sufficient sensitivity and specificity...
Food Fraud- Prevalence, Current Status, and Mitigation
What is Food Fraud Many cases of food fraud are reported both in the US and around the globe. For example, a year ago there were many reports about Parmesan cheese that contained fillers like wood pulp, cellulose, and cheddar. In Europe horse meat was labeled as beef. There is no universal definition of food fraud. The U.S. Pharmacopeial Convention maintains a Food Fraud Database and describes food fraud as a “deliberate substitution, addition, tampering or misrepresentation of food, food ingredients or food packaging, or false or misleading statements made about a product for economic gain.” Michigan State University in its Food...
Listeria contamination at Deutsch Käse Haus forced nationwide cheese recall
The recall of cheeses due to the presence of Listeria monocytogenes in Deutsch Käse Haus caused a snowball effect since Deutsch Käse Haus is a business–to-business provider of cheeses. Once a food recall is issued, each company that receives the contaminated products has to look at how contamination may have spread through its own plant. The situation becomes more complicated as supply chains grow longer and longer. The globalization of food supply chains makes widespread outbreaks more likely, and in some ways more difficult to track. It is hoped that the new FDA regulation as shown in the draft “Control of Listeria...