SPOTLIGHT FEATURE Food & Beverage Analysis
Investigating food product stability through oxidative stability testing
high temperature and oxygen pressure to accelerate sample aging, thereby enabling fast results. RapidOxy 100’s measuring principle enables direct oxygen uptake measurement inside a sealed chamber, making it ideal for R&D, quality control, and efficient shelf-life testing across countless sample types.
Oxidative stability is a key factor affecting the quality and shelf life of food products. When oxygen reacts with product ingredients, it can cause degradation that may lead to off-flavours, nutrient loss, or worse – the formation of harmful byproducts. These effects reduce product quality and shorten shelf life. In many cases, antioxidants are essential to preserve product properties and maintain overall quality.
RapidOxy 100 is the only instrument that performs the Rapid Small-Scale Oxidation Test (RSSOT) according to ASTM D8206. The system automates precise, reproducible oxidation stability testing by applying
Typical method conditions include temperatures from 80°C to 140°C, and an initial oxygen pressure of 700 kPa. These conditions initiate a rapid oxidation process. The oxygen uptake of the sample during the measurement is monitored by recording the pressure until a predefined pressure drop or a specific measurement time is reached.
The elapsed time until the pressure drop occurs – or the extent of the pressure drop within a defined time – is directly related to the total oxygen consumption of the sample, enabling an assessment of the sample’s oxidation stability.
The setup and cleaning procedures are straightforward and take less than five minutes. Samples can be measured without prior sample preparation, which allows the
shelf life of a product to be investigated in its original state.
The resulting measurement curve can be further analysed using the OxyLogger 100 desktop software. The software adds convenience by allowing curves to be compared easily with a single click.
Additionally, the oxidation induction time (OIT) is automatically determined by applying tangents, providing one more evaluation option. Whether it’s the induction period or OIT, the Arrhenius dependence of the test results enables OxyLogger 100 to automatically calculate the activation energy or estimate the shelf life for fats and oils with just one mouse click. Furthermore, the oxygen uptake can be calculated for any point in time, providing a deeper understanding of the product’s oxidation behaviour.
“Oxidation is one of the main drivers of quality loss in food products, yet it is often difficult to evaluate reliably within practical timeframes,” said Dr. Carolin Edinger, Product Manager for RapidOxy 100 at Anton Paar.
“With RapidOxy 100, we empower food
manufacturers and researchers to investigate oxidative stability quickly and reproducibly – without complex sample preparation. This makes it much easier to compare formulations, assess the effectiveness of antioxidants, and make informed decisions about shelf life early in development and during routine quality control.”
More information online:
ilmt.co/PL/321W 66548pr@reply-direct.com
Edible oils: Flash point testing for safe consumption and regulatory compliance
Flash point testing plays an important role in ensuring safety and compliance in the edible oil industry, particularly in processes involving solvent extraction.
Hexane extraction, used to efficiently separate oil from raw materials, is a common step in edible oil production. After extraction, hexane is removed through multiple evaporation and distillation stages. Verifying that residual solvent levels remain within regulatory limits is essential to ensure product safety and suitability for consumption.
Even trace amounts of hexane can significantly influence the flash point of the final oil, making flash point testing a reliable indirect indicator for monitoring residual solvent content. Accurate and reproducible flash point data helps producers confirm that hexane concentrations remain below defined thresholds and supports compliance with food safety regulations.
Anton Paar addresses these requirements with its PMA 300 and PMA 500 Pensky-Martens flash point testers, which fully meet the requirements of EN ISO 15267 in accordance with AOCS Cc 9c-95, specifically developed for the analysis of fats, oils, and related products. PMA 300 provides a robust and cost-effective solution for routine quality control, offering automated closed-cup testing and reliable performance for daily laboratory workflows.
“In edible oil production, even minimal hexane residues can have a decisive impact on safety and regulatory compliance,” said Dr. Andjela Djordic, Product Manager for the PMA 300 and PMA 500 at Anton Paar.
“With PMA 300 and PMA 500, we provide laboratories with fast, reproducible flash point results that serve as a reliable indicator for residual solvent control. This allows producers to confidently verify product safety while maintaining efficient, routine quality control workflows.”
PMA 500 extends these capabilities with 20 % faster cooling performance, optional gas ignition, and a status light that provides clear visual feedback on test progress and instrument status. Both instruments feature automatic flash detection and comprehensive safety systems, including integrated fire extinguishing and optical flame detection, ensuring precise results while maintaining a high level of operator safety.
A key technological advantage of Anton Paar flash point testers is the patented ceramic-coated electric igniter, engineered to last up to 10 times longer than conventional igniters. It offers significantly extended durability, thereby reducing maintenance requirements, minimising downtime, and supporting consistent, repeatable testing over time.
With PMA 300 and PMA 500, Anton Paar empowers edible oil producers and quality control laboratories to confidently monitor hexane residue levels, ensuring regulatory compliance while reinforcing consumer trust in safe, high-quality edible oils.
More information online:
ilmt.co/PL/235D 66549pr@reply-direct.com
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INTERNATIONAL LABMATE - FEBRUARY 2026 - ADVERTORIAL
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