Fast New Method Enhances Detection of Hidden Food Contaminants

Researchers have introduced a rapid and cleaner technique to identify harmful chemicals that may be present in commonly consumed foods. As more people focus on health, fitness, and nutrient-rich diets, concerns persist about polycyclic aromatic hydrocarbons (PAHs), which can enter foods through environmental exposure or cooking processes such as grilling, frying, roasting, smoking, or heating. Some PAHs are carcinogenic, making accurate detection essential for food safety.

Traditional extraction methods work but are often slow, labor intensive, and less eco-friendly. To improve efficiency, a Seoul National University of Science and Technology team applied the QuEChERS method to analyze eight PAHs in various food matrices. The approach used acetonitrile extraction, sorbent-based purification, and GC–MS testing, demonstrating strong linearity, low detection limits, and high recovery with good precision.

According to the researchers, this technique simplifies analysis, lowers operational burdens, and supports safer, more sustainable food testing practices.

01-12-2025