Tag Archives: Food Labs

Susanne Kuehne, Decernis
Food Fraud Quick Bites

Crisp, But Not Clean

By Susanne Kuehne
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Susanne Kuehne, Decernis
Palm Oil, Food Fraud
Find records of fraud such as those discussed in this column and more in the Food Fraud Database, owned and operated by Decernis, a Food Safety Tech advertiser. Image credit: Susanne Kuehne

An especially perfidious type of edible oil fraud is the dissolution of inedible plastic material, such as polypropylene or polyethylene packaging material, in hot cooking oil during the frying process. This is supposed to prolong the shelf life and the crispness of deep-fried snack food, not surprisingly with serious health implications. Attenuated total reflectance fourier-transform infrared spectroscopy (ATR-FTIR) in combination with principal component analysis (PCA) provides a straightforward method to analyze samples directly with minimal preparation, to detect polymers in palm cooking oil, as done in this study.

Resource

  1. Ismail, D. et al. (2021). “Classification Model for Detection and Discrimination of inedible Plastic adulterated Palm Cooking Oil using ATR-FTIR Spectroscopy combined with Principal Component Analysis”. Vol 25 No 3. Malaysian Journal of Analytical Sciences (MJAS).
Susanne Kuehne, Decernis
Food Fraud Quick Bites

Today’s Pig Is Tomorrow’s…Beef?

By Susanne Kuehne
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Susanne Kuehne, Decernis
Pig, cow, food fraud
Find records of fraud such as those discussed in this column and more in the Food Fraud Database, owned and operated by Decernis, a Food Safety Tech advertiser. Image credit: Susanne Kuehne

Balkan countries are enduring their share of adulterated foods. In Kosovo, commercial samples of meat labelled as beef or chicken were investigated with ELISA (enzyme-linked immunoassay test) and PCR (polymerase chain reaction) in order to detect pork mitochondrial DNA. The test series looked into the efficiency and cost of different methods and showed a preference for commercial ELISA combined with real-time PCR. Almost a third of beef was adulterated with pork, as were 8% of the chicken samples.

Resource

  1. Gecaj, R.M., et al. (August 2021). “Investigation of pork meat in chicken and beef based commercial products by ELISA and real-time PCR sold at retail in Kosovo”. Czech Academy of Agricultural Science, Open Access CAAS Agricultural Journals.
Katie Banaszewski, NOW Foods
In the Food Lab

Making Supplements Safer: Tackling the Pesticide Problem

By Katie Banaszewski
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Katie Banaszewski, NOW Foods

Precise, accurate contaminant analysis is crucial to ensure that dietary supplements are of high quality and free from potentially harmful chemicals, such as heavy metals or pesticide residues. As supplements become an increasingly prevalent part of global health culture, with their global market forecast to reach a value of more than $230 billion by 2027, there is an urgent need to ensure their safety for consumers—but manufacturers face many challenges in this area.

Assuring that dietary supplements are free of pesticide contamination is especially difficult given their botanical ingredients, which can be more complex than other analytes. A prominent obstacle is matrix interference. As most botanical ingredients exist in the form of concentrated extracts, smaller sample sizes are needed to overcome heavy matrix interference, in turn requiring highly sensitive instrumentation to detect minute amounts of pesticide residues.

With this in mind, we adopted an analytical workflow comprising both gas and liquid chromatography (GC and LC) systems for orthogonal residue analysis. GC-MS/MS can achieve fast, robust separation of ~300 pesticide residues, while LC-MS/MS enables analysis of ~280 residues. The GC and LC instruments are sufficiently sensitive to allow dilution of samples to mitigate matrix interference— essential to determine potentially low residue levels in complex matrices, and ensure dietary supplements can confidently be certified safe.

Clearing Analytical Hurdles

Matrix complexity is only increased by the fact that botanical ingredients are sourced from across the world and, therefore, exposed to many different agricultural practices. As a wide range and great many of these botanical ingredients are used to produce supplements, it is challenging to develop sample preparation procedures that are suitable for all products.

To prevent frequent iterations of analytical procedures, we developed one sample preparation workflow for GC-MS/MS and another for LC-MS/MS. In both, samples are hydrated and extracted (using acetonitrile:water and the salts anhydrous magnesium sulfate and sodium chloride) before cleanup by solid-phase extraction (SPE). For LC, various defined combinations of dispersive SPE analysis are used to accommodate different matrices (pigmented, high-fat or high-protein, for example) before samples are diluted prior to analysis. Doing so allows us to optimize sample preparation for particular groups of botanical matrices and target specific matrix mitigation without needing to change the entire workflow.

In addition to the aforementioned analytical hurdles, some lesser-defined commodities lack maximum residue limits, complicating the interpretation of results and specification of acceptable criteria. To mitigate these difficulties, we opted to streamline our data processing and reporting by implementing integrated chromatography data system software for both LC-MS/MS and GC-MS/MS. This enables on-the-spot evaluation of QC criteria and rapid assessment of component presence (or absence) in data review and facilitates swifter and easier cGMP compliance.

Keeping Supplements Safe

Our chosen analytical approach has created robust, sensitive processes for optimized multi-residue analysis of dietary supplement samples in a regulated QC environment.

With uptake of supplements fast increasing, guaranteeing product safety is more important than ever. Improved pesticide screening, and quality control of food ingredients, holds great value for both individual organizations and the industry as a whole, while—crucially—enabling consumers to rest assured about the safety of the products available to them.

Susanne Kuehne, Decernis
Food Fraud Quick Bites

Sergeant Pepper On Duty

By Susanne Kuehne
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Susanne Kuehne, Decernis
Pepper, food fraud
Find records of fraud such as those discussed in this column and more in the Food Fraud Database, owned and operated by Decernis, a Food Safety Tech advertiser. Image credit: Susanne Kuehne

A Northern Ireland-based analytical lab added white pepper to its portfolio of food authenticity tests based on spectroscopy with chemometric analysis. White pepper, the ripe berries of the piper nigrum plant, is undergoing an additional production step, fetches a higher price than black pepper and therefore is a target for fraudsters. Often, bulking substances like skins, flour, husks and spent materials are used, but in some cases of pepper fraud, the substances used were hazardous to human health.

Resource

  1. Taylor, P. (August 24, 2021). “With white pepper fraud on the up, Bia unveils authenticity test”. Securing Industry.
Recall

McCormick & Company Initiates Voluntary Recall of Italian Seasoning Products and Frank’s RedHot Buffalo Ranch Seasoning

By Food Safety Tech Staff
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Recall

McCormick & Company, Inc. has initiated a voluntary recall of its McCormick Perfect Pinch Italian Seasoning, McCormick Culinary Italian Seasoning and Frank’s RedHot Buffalo Ranch Seasoning over concerns of Salmonella contamination. FDA uncovered the issue during routine testing.

The recalled products were shipped nationwide, as well as to Bermuda and Canada. between June 20 and July 21, 2021.

Thus far there have been no reports of illnesses related to this issue. McCormick has alerted customers and grocery retailers to remove and discard the product.

Attend the On-Demand Virtual Event:

Food Safety Hazards Series: Salmonella Detection, Mitigation, Control and Regulation

Food safety experts will discuss challenges and tangible best practices in Salmonella detection, mitigation and control, along with critical issues that the food industry faces with regards to the pathogen. This includes the journey and progress of petition to USDA on reforming and modernizing poultry inspections to reduce the incidence of Salmonella and Campylobacter; Salmonella detection, mitigation and control; and a case study on the pathogen involving crisis management.

Dollar

Developments in PCR Technology Boost Food Pathogen Testing Market Outlook

By Vinisha Joshi
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Dollar

In recent years, foodborne illness has ignited alarming concerns across the globe. Food products can become contaminated with pathogenic bacteria through exposure to inadequate processing controls, animal manure, improper storage or cooking, and cross contamination. The following is a look at some of the pivotal figures that illustrate the effects of food contamination:

  • • According to WHO, an estimated of 600 million people globally fall ill after consuming contaminated food, of which 420,000 succumb to death every year.
  • Children under 5 years of age carry 40% of the foodborne disease burden, with 125,000 fatalities recorded annually.
  • Regionally, CDC reports suggest that foodborne pathogens cause nearly 9.6 million illnesses, 57,500 hospital admissions, and 1,500 deaths yearly in the United States alone.
  • Considering the financial aspects, it is essential to note that about $110 billion is lost almost every year in productivity and medical expenses from unsafe food consumption in low-and middle-income economies.

With such daunting numbers taking over the globe, there stands an innate requirement of cost-effective, easy-to-use, and accurate testing methods that ensure the consumer is delivered nothing but the safest food.

It has been estimated that global food pathogen testing market size could potentially surge to $5.5 billion by 2024.

Why is pathogen testing necessary? Pathogen testing is generally carried out to decrease and remove foodborne illnesses. It is a technique implemented in the very nascent stage of food production to ensure proper sanitation and food safety. The testing can be done using conventional technologies or the cutting-edge methods, including Polymerase Chain Reaction (PCR) or an immunoassay test.

PCR technology: An ideal and convenient technology in use for pathogen detection in food industry

PCR is one of the most frequently used technologies. The test enables the detection of a single bacterial pathogen, including E. Coli, Salmonella and Listeria, present in food by detecting a specific target DNA sequence. Aiding to such advantages, various business conglomerates that are involved in the food pathogen testing industry are taking strategic measures to bring forth novel innovations and practices in the space. The following is a brief snapshot of some developments in the PCR based pathogen testing technology landscape:

  • Sanigen, Ilumina partnership for development of NGS panel
    Owing to the escalating demand for PCR testing technology for detecting the presence of food pathogens, South Korea-based Sanigen, recently announced standing as a channel partner in the region for Illumina. Both the companies, in unison, are expected to work towards the development of NGS panels that can robustly detect 16 types of foodborne pathogen from around 400 samples.
  • Thermo Scientific’s 2020 launch of SureTest PCR Assays
    Last year Thermo Scientific expanded its portfolio of foodborne pathogen detection with the launch of the SureTest PCR Assays. The testing technology is poised to offer various food producers an access to a more holistic range of tests for every step of the analysis process.

A look at one sector: How is the expanding dairy sector complementing the growth structure of food pathogen testing market?

The dairy production industry is rapidly expanding in various developing and developed economies, marking a significant contribution to health, environment, nutrition and livelihoods. According to a National Farmers Union report, the U.S. dairy industry accounts for 1% of the GDP, generating an economic impact of $628 billion, as of 2019. However, dairy products, although deemed healthy, can contribute to severe human diseases in umpteen ways, with dairy-borne diseases likely to top the list.

Milk and products extracted from the milk of dairy cows can house a variety of microorganisms, emerging as a source of foodborne pathogens. This has pushed the need for appropriate testing methods and technologies, which can eliminate the presence of dairy-borne bacteria, like Salmonella.

Today, various rapid pathogen testing solutions that are suitable for detecting the presence of distinct bacteria and organisms are available for dairy-based food companies. For instance, PCR-based solutions are available to test for mastitis in dairy, which is a common rudder infection caused by microorganisms in dairy cattle, affecting the quality of milk. Apparently, Thermo Fisher offers VetMAX MastiType qPCR kits for relatively faster, efficient and easier mastitis diagnostics. In fact, the kits are deemed to be reliable tools that would accurately detect all mastitis causing bacteria in frozen, fresh and preserved milk samples.

Meat Products

Consumption of raw or undercooked meat is also expected to generate a significant food pathogen testing kits demand in the coming years. Common contaminants found in these products are E. coli and Salmonella. One of the strains of E. coli, Shiga Toxin-producing E. coli (STEC), is expected to emerge as a fatal contaminant present in the meat products. Consider the following:

  • WHO reports estimate that up to 10% of patients with STEC infection are vulnerable to developing haemolytic uraemic syndrome (HUS), with a case-mortality rate ranging from 3 to 5%.
  • Moreover, it has the ability to cause neurological complication in 25% of HUS patients and chronic renal sequelae, in around 50% of survivors.

Under such circumstances, the demand for pathogen testing in meat products, for detecting E. coli and other contaminants is gradually expanding worldwide. In January this year, PerkinElmer introduced its new tool for detection of E. coli O157 in food products. The kit has been developed for generating rapid results while simultaneously putting them forth to support food safety efforts related to beef and its self-life.

The global food and beverage sector is subject to stringent safety requirements and a considerable part of the responsibility lies with food producers. As such, access to rapid testing technologies will enable the producers to fulfill their safety obligations without compromising on productivity and bottom lines. The consistent development of PCR-based tools will certainly outline the gradual progress of food pathogen testing industry, keeping in mind the high penetration of dairy and processed meat products worldwide.

Salmonella

July 15 Virtual Event Targets Challenges and Best Practices in Salmonella Detection, Mitigation and Control

By Food Safety Tech Staff
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Salmonella

Next week, Food Safety Tech is hosting the second event in its Food Safety Hazards Series, “Salmonella Detection, Mitigation, Control & Regulation”.

The event begins at 11:45 am ET on Thursday, July 15.

Presentations are as follows:

  • Get with the Program: Modernization of Poultry Inspections in the United States; A panel discussion with Mitzi Baum, STOP Foodborne Illness;
    Sarah Sorscher, Center for Science in the Public Interest; Martin Weidman, DMV, Ph.D., Cornell University; and Bruce Stewart-Brown, Perdue Foods
  • Detect, Deter, Destroy! A Discussion on Salmonella Detection, Mitigation and Control, with Elise Forward, Forward Food Solutions; Dave Pirrung, DCP Consulting; additional speaker TBA
  • A Case Study on Salmonella, with Rob Mommsen, Sabra Dipping Company
  • Sponsored TechTalks will be provided by Will Eaton of Meritech, Patrick Casey of BestSanitizer, Adam Esser of Sterilex, and Asif Rahman of Weber Scientific.

Register now for the Food Safety Hazards Series: Salmonella Detection, Mitigation, Control & Regulation.

Recall

JBS Recalls Nearly 5000 Pounds of Imported Australian Boneless Beef Due to Potential E. Coli Contamination

By Food Safety Tech Staff
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Recall
JBS Boneless Beef product
Label of recalled JBS Australia beef product. (Image from FSIS)

JBS USA Food Company is recalling about 4,860 pounds of imported raw and frozen boneless beef products over concern of contamination with E. coli O157:H7. The products were imported on or around November 10, 2020 and shipped to distributors and processors in New York and Pennsylvania.

The issue was uncovered during routine product sampling collected by FSIS, which confirmed positive for the presence of E. coli O157:H7, according to an FSIS announcement. “FSIS is concerned that some product may be frozen and in cold storage at distributor or further processor locations,” the announcement stated. “Distributors and further processors who received these products are urged not to utilize them.”

No illnesses or adverse reactions have been reported.

Susanne Kuehne, Decernis
Food Fraud Quick Bites

Embrace Those Curves

By Susanne Kuehne
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Susanne Kuehne, Decernis
Near infrared spectroscopy
Find records of fraud such as those discussed in this column and more in the Food Fraud Database, owned and operated by Decernis, a Food Safety Tech advertiser. Image credit: Susanne Kuehne

Lab methods for the analysis of adulterated food can be time-consuming, expensive and impossible to use in the field. A new study shows promising results for hand-held near infrared (NIR) spectroscopy tools. The investigated method proved to be very quick and highly accurate, and could open new possibilities for remote testing. This was shown in a study with oregano samples, a common target for food adulteration.

 

 

Resource

  1. Mc Grath, T.F., et al. (to be published on August 15, 2021) “The potential of handheld near infrared spectroscopy to detect food adulteration: Results of a global, multi-instrument inter-laboratory study”. Abstract. Science Direct.
Susanne Kuehne, Decernis
Food Fraud Quick Bites

Olive Oil Detectives in the Lab

By Susanne Kuehne
No Comments
Susanne Kuehne, Decernis
Olive tree, food fraud
Find records of fraud such as those discussed in this column and more in the Food Fraud Database, owned and operated by Decernis, an advertiser in Food Safety Tech. Image credit: Susanne Kuehne

Canola oil, sunflower oil or soybean oil, colorants and low-quality olive oil, anyone? Olive oil, especially extra virgin olive oil adulteration is rampant, since the risk of getting caught is low and the profits are huge. A new expert-reviewed Laboratory Guidance Document on olive oil, published by the Botanical Adulterants Prevention Program (BAPP), lists a variety of laboratory methods at different levels of complexity, as well as the most common methods of adulteration. This Laboratory Guidance Document is an indispensable guide for regulatory and research personnel in the food, supplement and cosmetics industries.

Resource

  1. Mailer, R.J. and Gafner, S. (March 2021). “Botanical Adulterants Prevention Program Publishes Olive Oil Laboratory Guidance Document”. Botanical Adulterant Prevention Program.