At Chem Nutri Analytical, we offer a comprehensive, ISO-accredited oil testing service tailored for both food and feed applications. Our lab sets itself apart by combining scientific precision with deep industry understanding—delivering a level of insight that goes beyond routine testing.
We are proud to offer fully validated and ISO-accredited methods for:
These foundational analyses are essential for measuring oil quality and shelf stability, and are supported by a broader suite of advanced tests.
Unlike many routine labs, Chem Nutri Analytical provides a holistic oil profiling service. Our testing includes:
This ensures that our clients benefit from a single-source solution that is robust, reliable, and built for regulatory and nutritional decision-making across the supply chain.
To support long-term oil stability, we provide antioxidant analysis to quantify the inclusion and activity of key preservatives. Our tests cover commonly used antioxidants such as:
Understanding antioxidant levels allows clients to verify efficacy, avoid overdosing or underdosing, and comply with product safety standards.
Oil degradation progresses through three critical stages:
1. Primary Oxidation: Characterised by hydroperoxide formation, measured by Peroxide Value (PV). These compounds are early markers and degrade quickly.
2. Secondary Oxidation: Hydroperoxides break down into aldehydes and ketones, measured using p-Anisidine Value (p-AV).
3. Tertiary Oxidation: Advanced stages involve deeper decomposition, notably malondialdehyde, detected via the TBA (Thiobarbituric Acid) test.
Important: Because PV breaks down over time, relying on it alone may overlook deeper oxidation. A multi-parameter approach is essential.
This graph illustrates:
• A bell curve for PV—rising early and tapering off as it breaks down
• A gradual increase in p-AV, capturing secondary products
• A late rise in TBA, highlighting advanced rancidity
Let us help you achieve confidence and clarity in your oil quality decisions.
Through extensive internal validation, we have tested a range of solvents with varying polarities for the extraction of oils from complex protein-rich matrices, including:
Our findings confirm that the selected solvent system—tailored for optimal polarity—ensures comprehensive extraction of the full lipid fraction, even from challenging substrates.
This enables precise analysis of oxidation markers, total fat content, and other oil quality indicators, ensuring robust, reproducible results across a diverse range of sample types.
