Ensure Food Safety, Quality, and Process Efficiency of Edible Oils
Quality and Process Control
- Toxicity testing for heavy metals and metals in the trace and ultra-trace range
- Detection of catalyst poisons and process inhibitors
- Detection of catalyst residues and other process by-products
- Prevention of the formation of 2- and 3-MCPD esters and other undesirable compounds
- S/N/X rapid screens for the detection of residues and targeted use
- Determination of macro minerals for nutritional value determination
- Determination of health-promoting ingredients in special oils
- Total chlorine, nitrogen and sulfur content
- Organic and inorganic chlorine, nitrogen and sulfur content
- Heavy metals
- Molecular compounds
- DOBI index
Norms and Regulations
- European Commission Regulation, No 2568/91: Determination of K-values
- ISO 17932:2011: Determination of DOBI index in palm oil
- Carotene content according to Malaysian Palmoil Board
- ISO 10540: Determination of phosphorus content in fats and oils
- ISO 21033: Determination of trace elements
- AOCS Ca 17-01: Determination of trace elements in oil
C/N/S/X Sum Parameter Analysis
- ASTM D5453-19a, ASTM D7183: Determination of sulfur
- ASTM D4929-B, ASTM D5808, UOP 779: Determination of chlorine
- ASTM D4629, ASTM D5762: Nitrogen determination
- ASTM D5453: Nitrogen determination
How can we support your edible oil analysis? Discover our products, tutorials and download our brand new e-book free of charge.
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Plant-based Oils and Fats - Challenges for Analysis
Edible oils are staple food worldwide and indispensible raw material for the food, oleochemical and consumer industry. Their taste, nutritional value and chemical properties make them unique. While the global production volume is enormous - 223 million metric tons are forecast for 2023/2024 crop year - supply chains are complex and can be rapidly changing. Furthermore, oils have usually travelled a long way before arriving at their destination - refineries or processing companies - and have been exposed to many contamination risks.
Exporters, importers and processors face the challenge of quickly analyzing a large number of samples while ensuring compliant, seamless, and efficient quality monitoring of their crude oil, intermediates, and final products. Speed is needed when large supplies arrive and have to be qualified for possible contaminations or quality deterioration before releasing them for processing or delivery to further places. Analysis secures that products are safe for human consumption and ready for processing, as many contaminations are not only potential health or quality hazards, but can also impair the refinery process as catalyst poisons or as a potential sources for the formation of unwanted compounds. This requires powerful analytical techniques suitable for high sample volumes, short measurement times, and analysis of viscous organic samples with minimal sample preparation. This requires powerful analytical techniques suitable for high sample volumes, short measurement times, and analysis of viscous organic samples with minimal sample preparation.
Our Solutions for Edible Oil Analysis Discover our Techniques for Your Applications
Analytik Jena devices offer short measurement times, precise measurement results and numerous options for automation and accessories facilitating the analysis of viscous, high carbon organic matrices.
- Minimal sample preparation,
- No microwave digestion
- Dilute-and-shoot for ICP-OES
- Short measurement times and high measurement precision
- Temperature-controlled sample feed systems for C/N/S/X analysis
- Automatization functions
- Maximum operational reliability and safety
Use Our Solutions Along the Value Chain of Edible Oils
Tutorials Learn How to Optimize Your Edible Oil Analysis with Analytik Jena Solutions in our Tutorials.
Tutorials: Combustion Elemental Analysis
Episode 1 - Challenges and Tools
Learn about matrix requirements and the selection of appropriate tools.
Episode 2 - Sample Preparation
Learn about sample preparation methods, including pre-treatment in a hot water bath, direct dosing into quartz sample boats or dilution.
Episode 3 - Instrument Configuration
Complete and soot-free combustion of the sample is important for reliable analytical results. Learn about sample introduction strategies and maintenance of your multi-element analyser.
Episode 4 - Calibration and Measurement
Find out in which cases calibration is recommended and what you should consider when calibrating your analyser. For measurement, samples are weighed into quartz sample boats or injected directly, depending on whether they are viscous or aqueous.
Tutorials: ICP OES
Episode 1 - Sample Preparation
Oils have different viscosities and states of crystallisation due to their different fatty acid compositions. Therefore, one of the first questions before analysing oils is how and whether they need to be prepared for measurement with ICP-OES. Options include microwave digestion and dilution in a suitable organic solvent.
Episode 2 - Instrument Configuration
Find out what settings should be made on the ICP-OES instrument, in this case a PlasmaQuant 9100, to take into account the specifics of oil samples and obtain accurate measurement results.
Episode 3 - Measurement and Data Evaluation
Learn about the criteria of successful method calibration, the benefits of using internal standards and the control criteria for measurement accuracy. We also show causes of errors and how to fix them.
Episode 4 - Maintenance and Optimization
A well-maintained system guarantees maximum uptime and accurate results. Regular inspections and correct method settings prevent contamination and extend the life of individual parts.
Tutorials: UV/Vis Analysis
Episode 1 – Sample preparation
UV/Vis spectroscopy is a proven tool in the food industry for process monitoring using standard parameters such as colour analysis. Some samples, for example crude palm oil (CPO), are solid at room temperature and therefore need to be pre-treated before further analysis. Find out about the necessary tools and suitable solvents.
Episode 2 – Instrument configuration and measurement
The episode shows blank and sample measurement on the UV/Vis analyser, here a SPECORD PLUS. Learn which settings should be made in the device software to obtain accurate measurement results and how to evaluate the oil using the DOBI value.
C/N/X/S-Analysis with multi EA 5100
The elemental analyser multi EA 5100 with temperature-controlled sampler enables fast and precise C/N/S/X analysis of viscous samples and saves time-consuming sample preparation. In chlorine analysis, the risk potential for processing, storage and consumption of the oil can additionally be better assessed by differentiating between organic and inorganic compounds. Rapid screens for total sulphur and total nitrogen provide a decision-making aid for the targeted use of specific chromatographic techniques.
- During processing (e.g. during deodorisation), chlorine compounds can contribute to the formation of harmful substances such as 3-monochloropropane-1,2-diol - 3-MCPD, which are suspected of increasing the risk of cancer. For this reason, the WHO has defined corresponding limit values. The 3-MCPD content is regulated in Regulation (EC) 1881/2006.
- Sulphur primarily influences taste, quality and processability, but can also be a desirable ingredient of pharmaceutically relevant oils in organic form.
- Elevated nitrogen, sulphur and chlorine contents may indicate residues from fertilisers and pesticides as well as mineral oils
UV/Vis Spectroscopy with SPECORD PLUS
The SPECORD PLUS spectrophotometer is robust and easy to maintain and features outstanding precision in a wide wavelength range and offers high resolution even in the short and long wavelength range. The pharmacopeia-compliant instrument is designed for use in highly regulated industries. Spectrophotometry is suitable for the determination of various parameters in oil and fat analysis.
- K-values as detection of conjugated diene and triene fatty acids for the determination of quality, oxidation status and composition, e.g. in olive oil according to European Commission Regulation, No. No 2568/91.
- Anisidine value for the determination of oxidation degradation and shelf life
- DOBI index, carotene and phosphorus content e.g. in palm oil according to ISO 17932:2011 and Malaysian Palm Oil Board (MPOB)
- Colour determination and chlorophyll content
ICP-OES with PlasmaQuant 9100 Elite
With the ICP-OES PlasmaQuant 9100 Elite, you can analyse up to 70 elements - including metals or heavy metals - in the trace and ultratrace range. The method is described in standard procedures ISO 10540-3, ISO 21033 and AOCS Ca 17-01.
The comprehensive elemental analysis in oils detects metals, heavy metals and other elements that have been taken up from the soil or have entered the oil via transport. These can be toxic to humans - like cadmium, lead or mercury - or interfere with the refinery process as catalyst poisons. Some accelerate oxidation and can endanger the quality and stability of the final product.
AAS with Analytik Jena Spectrometers
With atomic absorption spectrometry, you can determine elements in the ultra-trace range cost-effectively and robustly. Depending on the application, we offer AA spectrometers with graphite furnace and/or flame technology. For highest detection strength and flexibility we recommend the contrAA with the unique High-Resolution Continuum Source technology. For the best matrix robustness, the ZEEnit series is available with the powerful Zeeman background correction and a variable magnetic field for adapted sensitivity of the analytes (3-field mode).
Our brand new e-Book takes a closer look at t a series of quality and food safety parameters as well as process efficiency indicators for edible oils. Matrices are palm oil and soy bean oil as the two oils with the highest production volume, as well as a variety of other oils relevant for food and consumer products. Also the analysis of sulfur in mustard oil as part of pharmaceutically relevant compounds will be analyzed. The quantitative techniques CNSX-analysis, ICP-OES, and UV/Vis spectroscopy have been used. Parameters are levels of non-metals, element contents as well as the degradation at molecular level.
How elemental analysis contributes to food safety and quality. In this web seminar Analytik Jena experts present some new technological advancements and customer-oriented solutions in the field of elemental analysis that will support you in mastering application challenges of edible oils.
Margarine, spreads, chocolate, detergents, cosmetics, biofuels and much, much more - palm oil simply everywhere and in almost every food product. Hardly any other natural product is used as widely for industrial production as this tropical oil since it is relatively inexpensive to produce. Palm oil has to be refined in order to be processed. This often results in impurities that impair the quality and thus can affect the saftey of the respective end products. Some of the most common impurities in the refining process are chlorine compounds such as chlorpropanediols, which are harmful to the environment and health. In this article we highlight some reliable and efficient methods for the detection of chlorine in palm oil.
Determination of Total Chlorine in Palm Oil with the Elemental Analyzer multi EA 5100
Application NoteOpen PDF
Determination of Trace Elements and Mineral Contents in Edible Oils and Fats by HR ICP-OES-en
Application NoteOpen PDF