Why is PFAS detection in textiles so difficucon

• Be present in ultra-trace amounts
• Be embedded in complex synthetic fibres
• Require extensive and delicate preparation before testing

• Delays in turnaround times
• Inconsistent results
• Potential non-compliance with regulations

Automation is transforming textile PFAS testing

• Faster processing of large sample volumes
• Minimised manual intervention
• Higher consistency and reproducibility
• Freed-up lab staff for data analysis rather than repetitive prep tasks

How does Raykol’s automated SPE system improve sample prep?

• Reduced contamination risk from human handling
• Faster preparation times for large volumes
• Seamless compatibility with LC/MS workflows
• Improved repeatability and lab efficiency

Agilent LC/MS: Trusted precision for PFAS detection

• Comply with global regulations (e.g. EU REACH, US EPA, SAICM)
• Process large test batches without compromising accuracy
• Stay competitive by delivering reliable, compliant results on time

PFAS testing protects more than compliance

• Consumer trust during peak sales seasons
• Brand differentiation as safety-conscious and transparent
• Supply chain resilience against new international bans or restrictions
• Preparedness for the expanding global push toward PFAS elimination

What’s next? Build a smarter PFAS detection strategy

The growing importance of Food Safety

Food safety is non-negotiable. Defined by the World Health Organization (WHO) as the prevention of hazards – both chronic and acute – that can harm consumer health, it forms the backbone of a trustworthy food supply chain. Hazards may include microbial contamination, pesticide residues, heavy metals, and even naturally occurring toxins, all of which can pose serious risks if left unchecked.

Food quality, while often considered alongside safety, addresses different concerns. It encompasses attributes such as flavour, texture, appearance, and even the origin of a product. While safety ensures a product is fit for consumption, quality determines its value and appeal to consumers.

For food producers, striking a balance between these two aspects is essential to building trust and maintaining competitiveness.

Why Mass Spectrometry?

Mass spectrometry has become a cornerstone of modern food safety testing, thanks to its unparalleled sensitivity, accuracy, and versatility. Unlike traditional methods, which may require separate tests for different contaminants, mass spectrometry can detect and quantify multiple analytes in a single run. This capability significantly enhances efficiency and reduces the time required for analysis – a critical advantage for laboratories handling high sample volumes.

Key Advantages of Mass Spectrometry in Food Safety

Unmatched sensitivity and precision

Mass spectrometry can detect contaminants at trace levels, often in parts per billion (ppb) or even parts per trillion (ppt). This is vital as regulatory agencies worldwide demand more stringent detection limits to protect public health.

Multi-analyte detection

With mass spectrometry, laboratories can analyse multiple contaminants simultaneously, including pesticides, heavy metals, mycotoxins, and allergens. This not only improves throughput but also reduces the cost and complexity of testing.

Simplified sample preparation

Advanced mass spectrometry systems streamline sample preparation, reducing the likelihood of human error while speeding up the testing process.

Adaptability across food matrices

From solid foods like grains and meats to liquids like milk and juices, mass spectrometry can handle diverse food matrices, making it a versatile solution for the food industry.

📚 Download the Food Safety Applications in Mass Spectrometry primer for a practical reference for applying current developments in Agilent MS technologies to food analysis: https://chemetrix.co.za/wp-content/uploads/2024/12/5989-1270EN-AGI_74_combined.pdf

Transforming Food Safety Testing

One of the most significant developments in mass spectrometry is the rise of inductively coupled plasma mass spectrometry (ICP-MS). Historically viewed as complex and challenging to operate, ICP-MS has undergone a transformation. Modern instruments now feature user-friendly interfaces, automated optimisation, and built-in diagnostic tools, making them accessible to labs of all sizes.

ICP-MS is particularly valuable for detecting heavy metals such as lead, cadmium, and mercury, which can have severe health consequences even at low concentrations. The technique’s sensitivity and specificity ensure that contaminants are accurately identified and quantified, enabling producers to meet regulatory requirements with confidence.

Another breakthrough is the integration of liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass spectrometry (GC-MS). These methods are widely used for detecting pesticide residues and volatile organic compounds in food products. The combination of chromatography and mass spectrometry allows for the separation and precise identification of compounds within complex mixtures, ensuring reliable results.

📚 Download the Improving Food Safety Analysis with LC/Q-TOF compendium of application notes and explore analysis of pesticides, nontargeted screening approaches for contaminants, and food authenticity testing: https://chemetrix.co.za/wp-content/uploads/2024/12/Improving_Food_Safety_Analysis-with-LC_Q-TOF-Feb2020.pdf

Addressing the challenges of a globalised food supply chain

In a globalised food economy, the complexity of supply chains adds another layer of risk. Ingredients sourced from diverse regions can introduce contaminants at various stages, making robust testing protocols indispensable. Additionally, the transportation and storage of food products can create opportunities for microbial growth or chemical alterations.

Regulatory bodies worldwide, such as the European Food Safety Authority (EFSA) and the United States Food and Drug Administration (FDA), have responded by tightening standards and lowering acceptable thresholds for contaminants. As a result, food manufacturers must adopt advanced technologies to stay ahead of compliance requirements.

Mass spectrometry provides the tools needed to address these challenges. Offering rapid, reliable testing, enables stakeholders to identify potential issues early in the supply chain. For example, a shipment of imported spices can be tested for pesticide residues before distribution, preventing contaminated products from reaching consumers.

Moreover, mass spectrometry supports traceability – a key component of modern food safety systems. By linking test results to specific batches or production lots, producers can quickly identify and recall affected products in the event of a safety breach. This level of accountability is essential for maintaining consumer trust and avoiding costly disruptions.

📚 Download the Multi-Residue Pesticide Analysis in Food Matrices poster to see how the screening and quantitation of 250 pesticides was done using the Agilent Ultivo Triple Quad: https://chemetrix.co.za/wp-content/uploads/2024/12/Multi-Residue_Pesticide_Analysis-_Food_Matrices_Ultivo_AOAC_2017_PW044.pdf

Chemetrix: Your partner in Food Safety

Chemetrix is at the forefront of delivering advanced mass spectrometry solutions tailored to the needs of the food industry. With a deep understanding of the unique challenges faced by producers, regulatory agencies, and testing laboratories, Chemetrix provides comprehensive support to ensure optimal performance and compliance.

Why choose Chemetrix?

• Cutting-Edge Instrumentation: Chemetrix offers state-of-the-art mass spectrometry systems, including ICP-MS, LC-MS, and GC-MS, designed for precision and efficiency.
• Expert Guidance: From installation to training and ongoing support, Chemetrix’s team of experts ensures that clients can fully leverage their technology investments.
• Tailored Solutions: Recognising that every client has unique requirements, Chemetrix works closely with stakeholders to develop customised workflows that meet their specific needs.

By partnering with Chemetrix, food producers and testing labs gain access to the tools and expertise needed to navigate the complexities of modern food safety testing with confidence.

The Future of Food Safety

As food systems evolve, so too must the methods used to ensure their safety. Mass spectrometry represents a critical step forward, offering the precision, speed, and adaptability needed to meet the challenges of an increasingly interconnected world.

For the food industry, adopting advanced testing technologies is not just about compliance – it’s about safeguarding public health, protecting brand reputation, and building trust with consumers. With partners like Chemetrix leading the way, the future of food safety is brighter, more secure, and more innovative than ever.

We start the LC Beginner webinar series with an overview of basic terms relevant to liquid chromatography.

Speaker

Laura Montis
Product Specialist Liquid Phase Separations
Agilent

Stationary Phases in HPLC – Part I

Reversed phase or normal phase?
Fully porous, partially porous, end capping?
In this webinar, we will cover different stationary phases (RP and NP) and the selection of the particle.

Speaker

Cecilia Mazza
Product Specialist, EMEA IDO – Chemistries & Suppliers
Agilent

Stationary Phases in HPLC – Part II

Speaker

Cecilia Mazza
Product Specialist, EMEA IDO – Chemistries & Suppliers
Agilent

LC Instrument Hardware

Speaker

Laura Montis
Product Specialist Liquid Phase Separations
Agilent

HPLC Detectors

Speaker

Ansuman Mahato
Product Specialist Liquid Phase Separations
Agilent Technologies, Inc.

Single Quad Mass Detection for Chromatographers

Speaker

Shaun Pritchard
Product Specialist Liquid Phase Separations
Agilent Technologies, Inc.

SingleQuad II

Speaker

Shaun Pritchard
Product Specialist Liquid Phase Separations
Agilent Technologies, Inc.

GPC/SEC Detector Selection

Speaker

Ansuman Mahato
Product Specialist Liquid Phase Separations
Agilent Technologies, Inc.

Sample Preparation

Speaker

Shaun Pritchard
Product Specialist Liquid Phase Separations
Agilent Technologies, Inc.

Method Development

Speaker

Laura Montis
Product Specialist Liquid Phase Separations
Agilent

Troubleshooting and Everyday Routine for the Instrument

Speaker

Ansuman Mahato
Product Specialist Liquid Phase Separations
Agilent Technologies, Inc.

Troubleshooting and Everyday Routine (Columns)

Speaker

Giorgio Ferlat
MSc, EMEAI IDO Product Specialist, Chemistries and Supplies
Agilent Technologies, Inc.

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Ensuring water quality and safety through analytical testing is crucial for public health and environmental protection. Comprehensive testing involves analysing regulated pollutants, including pesticides, semi-volatile organic compounds, metals, and disinfection byproducts. It also extends to emerging contaminants such as PFAS, microplastics, hormones, and various unknown chemicals.

As environmental challenges continue to evolve, detecting and identifying emerging contaminants in water has become a critical task for researchers. Advanced analytical technologies, such as high-resolution mass spectrometry (HRMS), gas chromatography-mass spectrometry (GC-MS), and liquid chromatography-tandem mass spectrometry (LC-MS/MS), play a pivotal role in this effort. These sophisticated instruments not only enhance the detection capabilities but also contribute to a deeper understanding of the toxicological impacts of unknown chemicals.

The role of advanced analytical technologies

High-Resolution Mass Spectrometry (HRMS)

HRMS provides unparalleled precision and accuracy in measuring the mass of chemical compounds. It allows for the detection of a wide range of contaminants, even those present at trace levels. This technology is particularly beneficial for non-targeted analysis, where the goal is to identify unknown compounds in water samples. By delivering high-resolution data, HRMS enables researchers to pinpoint the exact mass of contaminants, facilitating their identification and characterisation.

Watch our webinar on Using Liquid Chromatography with QTOF High-Resolution Mass Spectrometry to Identify Emerging Contaminants in Urban Waters >

Gas Chromatography-Mass Spectrometry (GC-MS)

GC-MS is a powerful tool for separating and analysing volatile and semi-volatile organic compounds. It combines the separation capabilities of gas chromatography with the detection prowess of mass spectrometry. This technology is essential for identifying contaminants that may not be detectable through other means. GC-MS excels in providing detailed information about the chemical composition of water samples, making it indispensable for comprehensive water quality assessments.

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

LC-MS/MS is renowned for its sensitivity and specificity in detecting and quantifying contaminants. This technology is particularly effective for analysing non-volatile and polar compounds that are challenging to detect with GC-MS. LC-MS/MS allows researchers to conduct multi-residue analysis, detecting multiple contaminants simultaneously. Its high throughput and precision make it a cornerstone in environmental monitoring and toxicological studies.

New threats emerging

Microplastics are tiny synthetic particles or polymeric matrices derived from plastic, ranging from 1 µm to 5 mm in size and insoluble in water. According to an article published by Agilent, current research believes that microplastics will also degrade into smaller particles on a nanoscale, called ‘nanoplastics’. Despite increasing analysis, their environmental risk remains unclear. The World Health Organisation (WHO) has called for more scientific research to better understand the potential toxicity of microplastics.

Download the infographic poster on Accurate Microplastics Analysis >

A recently published study* stated, “The prevalence of micro and nanoplastics (MNPs) in various environmental and human compartments has highlighted the need for analytical methods to accurately detect and quantify these contaminants. Pyrolysis-gas chromatography coupled with mass spectrometry (Py-GC-MS), one of the thermo-analytical methods, is evolving as an analytical technique to quantify MNPs in complex matrices.”

This study evaluated the impact of using diverse polystyrene (PS) standards with different molecular weights, polydispersity indexes, tacticity, end-capping, and chain branching, on quantifying the mass concentration of PS in various products. The results for the PS-based products showed inconsistencies across different standards, indicating that the measurements for a single product varied substantially when different polystyrene (PS) standards were applied.

The team behind the study made use of Agilent technologies for their research and found there is a need for refined calibration strategies and standardised reference materials to improve the reliability of the MNP analysis method.

From this example, it’s clear that advanced analytical technologies are not only about detection but also about understanding the broader implications of contaminants, like microplastics. By accurately identifying and understanding newer chemicals and contaminants, researchers can assess their toxicological impacts on human health and the environment. This knowledge is crucial for developing effective mitigation strategies and regulatory policies.

Watch our webinar on Microplastics Analysis Just Got Easier: Analysis Direct On-Filter >

Continuous improvement of water analysis

Chemetrix is at the forefront of providing state-of-the-art analytical instruments that empower researchers in their quest to safeguard water quality. By offering cutting-edge technologies such as HRMS, GC-MS, and LC-MS/MS, Chemetrix supports comprehensive environmental research. The instruments are designed to meet the rigorous demands of modern laboratories, ensuring reliable and accurate results.

A prime example of the application of these technologies is non-targeted analysis in water. This approach involves screening water samples for a wide array of contaminants without prior knowledge of their presence. By employing HRMS, GC-MS, and LC-MS/MS, researchers can detect and identify unknown compounds, providing a holistic view of water quality. This method is essential for uncovering emerging contaminants that may not be included in routine monitoring programs.

To preserve our planet’s resources for future generations, the scientific community has to be the trailblazers of today that’ll help find the solutions to protect our tomorrow. There is an incredible amount of passion and dedication among the researchers and scientists who are fighting the good fight against emerging water contaminants and providing valuable insights that everyone can use to make better choices. They can’t do this work without great analytical instruments.

These instruments enhance detection capabilities, provide valuable insights into toxicological impacts, and support informed decision-making. Chemetrix’s commitment to providing cutting-edge solutions underscores its vital role in environmental research. As we continue to face new environmental challenges, the adoption of these advanced technologies will be crucial in ensuring the safety and sustainability of our water resources.

*Quantitation of polystyrene by pyrolysis-GC-MS: The impact of polymer standards on micro and nano plastic analysis by M. Brits, B. van Poelgeest, W. Nijenhuis, M.J.M. van Velzen, F.M. B´een, G.J.M. Gruter, S.H. Brandsma, M.H. Lamoree

]]> https://chemetrix.co.za/unveiling-the-hidden-threats-researching-emerging-contaminants-in-water/feed/ 0 https://chemetrix.co.za/revolutionising-nutrition-the-rise-of-alternative-proteins/ https://chemetrix.co.za/revolutionising-nutrition-the-rise-of-alternative-proteins/#respond Fri, 28 Jun 2024 14:00:17 +0000 https://chemetrix.co.za/?p=6409 Continue reading "Revolutionising Nutrition: The Rise of Alternative Proteins"]]> The food industry is experiencing a significant shift as alternative proteins rise in popularity. These non-animal-based foods, ingredients, and beverages, including plant-based, cell culture-based, and fermentation-based proteins, offer a new frontier in nutrition and sustainability. Designed to mimic the taste, texture, and nutritional profiles of traditional animal proteins, alternative proteins have come a long way from the mock meats of the past. The market for these products is booming, projected to surpass $290 billion by 2030, driven by their nutritional benefits, environmental sustainability, and potential to enhance food security.

Today, the industry for alternative proteins has technology on their side and are continuously turning to data and analysis to find solutions that will make these increasingly popular food items more appealing to a wider consumer base. And while meat or burgers grown in a lab does grab headlines, it’s a far cry from the products found in grocery stores that are more practical and cost-effective. Making better alternative protein products isn’t as easy as throwing lentils into the mix and scientific methods are helping to expand the alternative protein offerings in the mainstream market.

Passing taste tests with lab innovation

As the market for alternative proteins expands, rigorous testing becomes crucial. Ensuring the safety, composition, health benefits, and sustainability of these products is essential for maintaining consumer trust and industry growth. For many consumers, concerns about contaminants like veterinary drugs and hormones in meat products make alternative proteins a preferred choice, perceived as a healthier option. However, with rising demand and sometimes limited supply, food fraud becomes a significant challenge. Fraudsters may substitute expensive plant-based proteins with allergens like wheat or soya, or engage in other deceptive practices such as mislabelling and counterfeiting.

To address these challenges and meet consumer expectations in terms of the sensory experience, food developers are turning to advanced analytical tools. These tools are essential for overcoming the biggest hurdles to mainstream acceptance of alternative proteins: taste and texture.

By using sensitive instruments to analyse and optimise the flavour, aroma, and nutritional profiles of these products, food scientists can ensure they meet the high standards expected by consumers.

The process begins with sample preparation to remove unwanted interferences such as fats, chlorophyll, and pigments, allowing researchers to accurately compare the alternative proteins to their animal-based counterparts. Tools like liquid chromatography and mass spectrometry systems are then used to analyse food on a molecular level. Liquid chromatography provides detailed characterisation of stable components such as amino acids, vitamins, and lipids, while gas chromatography examines volatile compounds to engineer desired smells and tastes.

Ensuring a quality composition of alternative proteins

Agilent’s workflow solutions exemplify the robust testing needed in the alternative protein industry. These solutions validate the authenticity, nutritional information, and safety of alternative protein products. For instance, Agilent’s LC-Q-TOF-MS/MS technology has been used to investigate non-meat proteins and peptide markers in ready-to-cook beef burgers, while GC/MS-based metabolomics approaches differentiate the chemical profiles of plant-based meat alternatives from grass-fed ground beef.

Watch our webinar on Metabolomics Profiling of Meat and Plant-based Meats >

Elemental analysis is another critical aspect of ensuring the quality of alternative proteins. During the production process, there is potential for elemental metals to contaminate the final products. Agilent’s atomic spectroscopy instruments, such as the 7850 inductively coupled plasma mass spectrometry (ICP-MS), enable the identification and quantification of these metal elements, ensuring product safety.

The future of food relies heavily on advancing research into alternative proteins. Technologies such as ICP-MS, triple quadrupole (QQQ) liquid or gas chromatography-mass spectrometry (LC/GC/MS), and high-performance liquid chromatography (HPLC) are recommended for robust testing purposes. These tools not only support the development of safer, healthier, and more sustainable food options but also influence the global food supply chain.

Chemetrix has the expert knowledge and innovative solutions required by the food industry to advance the safety and innovative product development of alternative proteins. As the food and agriculture industry faces ever-increasing demands for more sensitive, productive analytical solutions, Chemetrix leads the industry with products and services to help you deliver what your customers demand. Our instruments, systems, and supplies are used throughout the food production chain, including incoming inspection, new product development, quality control and assurance, and packaging. Contact us to find out how our team can assist you.

Specifically, Agilent automation offers intuitive workflows that provide high data reproducibility and increased throughput while reducing hands-on time. In this webinar, we describe key learnings revealed during the automation of several workflows that extract metabolites and/or lipids from plasma and mammalian cell samples.

Speakers

Genevieve Van de Bittner, Ph.D.
R&D Researcher
Agilent Research Laboratories
Agilent Technologies, Inc.

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This talk will cover Agilent’s efforts towards developing an ASTM Jet Fuel method. Many interesting elements that aren’t commonly requested, including Platinum (Pt) and Palladium (Pd), will be discussed with this new ICP-MS method. Preliminary data from the ASTM pilot study will be shared in this talk.

Speakers

Jenny Nelson, PhD
Application Scientist
Agilent Technologies, Inc.

Mark Kelinske
Application Scientist
Agilent Technologies, Inc.

Register and watch on demand >

But labs that use ICP-MS – or are thinking of installing one – can find it difficult to unlock the true potential of the technique. Unproductive and often unnecessary activities can eat into lab time, reducing productivity, increasing stress, and potentially impacting data quality. Open to all; this workshop will provide insights you can employ to improve efficiency in your laboratory while also reducing pressure on staff and increasing confidence in the results you report.

Speakers

Bert Woods
Application Scientist
Agilent Technologies, Inc.

Joined the Agilent ICP-MS team in 2004, with previous employment in the semiconductor industry with Dominion Semiconductor (IBM/Toshiba) and Micron. Bert is a 1997 Chemistry graduate of Radford University in Virginia and an avid Washington DC Sports fan.

L. Craig Jones
ICP-MS Application Scientist
Agilent Technologies, Inc.

Craig has been with Agilent for over 15 years as an ICP-MS applications scientist. He has been involved with multiple types of applications for ICP-MS, including environmental, pharmaceutical, nutraceutical, semiconductor, geologic, and clinical analyses, to name a few. Previous to Agilent, he worked in an environmental lab performing analysis and supervising both the inorganic and organic sections of the laboratory. In his spare time, Craig enjoys volunteering at the local marine science centre, mountain biking, hiking and relaxing at the beach. Craig obtained a bachelor of science degree in chemistry from Fort Lewis College in Durango, CO.

Register and watch on demand >

According to an article published by The Guardian, doctors, scientists and researchers have built an artificial intelligence model that can accurately identify cancer in a development they say could speed up diagnosis of the disease and fast-track patients to treatment. This is but one of many new developments that include AI technology in cancer diagnosis as well as treatment.

In this webinar, we learn the predictive powers of artificial intelligence combined with cutting-edge mass spectrometry to discover clinically relevant biomarkers that can only be revealed by high-resolution analysis of the glycoproteome. This presentation is for all who are interested to learn more about the real-world clinical application of glycoproteomics on cancer diagnosis.

Speaker

Dr. Low Ley Hian
Director of Development
InterVenn Biosciences

Register and watch on demand >

Although there’s a rising demand for honey, the honey bee population is also under threat. Another not-so-sweet issue is the number of products labelled as honey on retail shelves that don’t meet the criteria to be classified as pure honey.

The term “adulterated honey” means any honey to which has been added honeydew, glucose, dextrose, molasses, sugar, sugar syrup, inverted sugar, or any other similar product or products other than the nectar of floral exudations of plants gathered and stored in the comb by honey bees.

Food fraud is a significant concern for consumers and producers, with research indicating that fraud accounts for up to 25% of all globally reported food safety incidents. The growing demand for food authenticity means consumers regularly pay a premium for organic and sustainably produced goods like honey. Fraudsters have been flooding markets with adulterated, low-quality, or mislabeled foodstuffs, damaging the livelihoods of legitimate businesses and potentially risking consumer health.

Increasing demand

Consumers have become quite specific in their demand for honey, focusing on unifloral honey or monofloral honey obtained predominantly from bees that feed on a single species of plant flowers. This results in a unique colour, flavour, and fragrance exclusive to each type of unifloral honey. As consumers are willing to pay more for these products, protections must ensure that they purchase what they expect.

According to data from the Food and Agriculture Organization of the United Nations, China, Mexico, Russia, Turkey, and the United States are among the major honey-producing countries accounting for approximately 55 per cent of world production. The most common form of adulteration involves extending or diluting honey with other less expensive sweeteners. Commonly identified extenders are corn, cane, and beet syrups.

Testing for authenticity to mitigate honey fraud

Global e-commerce is placing honey sales outside regulatory oversight more frequently—a trend expected to continue. This, combined with increased fraudulent activities, makes tackling the problem critical. This is why it is important to identify these substances quickly, efficiently, and consistently. The food industry requires analytical instruments and testing techniques to consistently and rapidly analyze food and identify trace chemicals.

Analytical testing is essential for assessing food authenticity, which is important to protect consumers’ health, the brand, and producers’ income. Testing is a necessary part of an overall strategy to mitigate fraud risk, and methods for authenticity testing are rapidly evolving, with innovative technologies now available for developing robust food testing techniques.

Agilent 1290 Infinity II LC System

For example, it has been demonstrated in recent years that coupling high-performance liquid chromatography with quadrupole time-of-flight (LC/Q-TOF), such as the Agilent 1290 Infinity II LC System with Agilent 6545 LC/Q-TOF, provides a sensitive method to reveal the chemical composition of honey samples. Using this method with a non-targeted approach enables the identification of new types and sources of fraud through the chemical markers in the honey, highlighting which kind of fraudulent activity is occurring. Since this technique evaluates multiple markers in honey to determine authenticity, it is very difficult for fraudsters to cheat by adding one or a few adulterants. This innovative technique is called honey fingerprinting.

Agilent 6545 LC/Q-TOF

Determining honey’s unique chemical composition

Honey fingerprinting is the practice of using a suitable technique to record as much information as possible on the chemical composition of a particular honey sample. In the same way, a human fingerprint is unique to individuals, this fingerprinting method unlocks and records the unique molecular composition of authentic honey samples. This enables the mapping of food components in an unprecedented fashion that will revolutionize how honey is regulated for quality, safety, and authenticity.

Utilizing a non-targeted workflow begins with identifying other compounds, including pesticides, molecules that indicate freshness, like a compound called HMF (which suggests thermal processing or age if present in high numbers), and phenolic compounds, which are related to the floral origin of honey. The advantage of using LC/Q-TOF for this technique is its efficiency: higher molecular/trace information levels can be obtained from just one sample in less time versus targeted methods focusing on just a few parameters.

Standardising honey fingerprinting methods

Although previous work has been done developing case studies for fingerprinting foodstuffs, including honey, the approaches among laboratories have been different regarding sample preparation and instrumental condition. There are also differences in terms of data processing and analysis. As a result, two laboratories analyzing the same sample may obtain slightly different results. Ideally, developing a standardized fingerprinting method that could be used across all LC/MS-based workflows, enabling the same testing technique to be used across multiple laboratories, would be optimal and where future work is aimed.

When addressing the issues of food safety, product quality, and authenticity, each may be governed by separate sets of regulations. For example, looking at the residues of contaminants in honey, such as pesticides, there may be differences globally. Countries may have their own restrictions for the maximum limit for specific compounds. Contaminants are a part of the picture when considering fingerprinting for honey, but permitted levels may vary between countries.

Additionally, as samples come from the field to the lab for testing, there is potential interest in reversing this and bringing the lab out into the field instead. This interesting but not yet recognised capability would enable regulators and the global food industry to respond more quickly to honey contamination and food fraud.

Taking a global approach to ensure honey purity

As the food supply chain becomes increasingly globalized, raising the opportunity for food fraud, experts predict that testing, such as those described above, will become more accessible, increasingly automated, and easier to perform. Fingerprinting methods—in which the entire molecular profile of food can be obtained—will be a feature of future fraud prevention and identification systems.

A positive step forward is the focus on building a library of authentic honey samples and making it an accessible, open database so that honey fingerprinting information is available across multiple stakeholders in the global supply chain. With increased knowledge, more scientists will be able to adopt techniques such as LC/Q-TOF and could also use this testing for other types of food—for example, maple syrup.

The ultimate goal is for food testing laboratories to confidently measure contaminants that threaten the global food chain and tackle food fraud head-on to ensure that consumers can access authentic and safe honey.

(This article has been modified from its original appearance on the Agilent website)