Determination of Total Polar Substance (TPC) in Oils: Quality and Safety Analysis

Why analyze total polar matter (TPC)?

What is Total Polar Content (TPC)?

During frying, oil undergoes oxidative and thermal degradation processes when exposed to high temperatures. These processes lead to the formation of degradation products called polar substances. Polar substances include free fatty acids, oxidation products (peroxides, aldehydes, ketones) and polymerized triglycerides.

• Total Polar Substance (TPC): The percentage of polar compounds present in the oil, usually expressed as % by weight.
• Critical Threshold: Most countries and standards set a maximum TPC limit of 24-27% in frying oils. Oils exceeding this limit are considered hazardous to health.

Why is TPC Determination Important?

1. Reducing Health Risks: Polar substances contain components that can have harmful effects on human health. These substances can cause gastrointestinal disorders and chronic diseases in the long term. Especially oxidation products such as aldehydes and ketones can be toxic.
2. Food Safety and Quality: High TPC can cause adverse changes in the taste, odor and texture of fried foods. The use of low quality oil reduces consumer satisfaction.
3. Regulatory Compliance: The amount of TPC is subject to food safety regulations in many countries. This analysis is important to ensure compliance with the law.
4. Economic Efficiency: TPC analysis provides a benchmark for determining when oil needs to be changed. This helps to keep costs under control by using the oil in the optimum time.

Application Areas for TPC Determination

• Frying Industry: Fast-food chains and restaurants use TPC analysis to optimize oil change times.
• Food Production: Monitoring the quality of oils used in prepared foods, snacks and frozen products.
• Regulation and Audit: Food safety audits use TPC measurements to determine whether oils comply with legal limits.

The following recommendations can improve the effectiveness of TPC analysis:

1. Routine Controls: Regular TPC analysis of oils during the frying process is recommended.
2. Appropriate Method Selection: Selecting an analysis method that is appropriate for the intended use is important to obtain accurate and reliable results.
3. Compliance with Regulations: Manufacturers and restaurants need to consider TPC limits in accordance with local and international standards.

Nano-lab Laboratories Group continues to provide services within the scope of Total Polar Substance (TPC) Determination in Oils. We also provide services in Olive Oil Analysis.

Contact us for more information.

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