New Method Dramatically improves Food Safety Testing for Cancer-Linked Chemicals

Seoul, South Korea – A groundbreaking new submission of the QuEChERS method is poised to revolutionize food safety testing, offering a faster, more accurate, and environmentally friendly way to detect possibly carcinogenic compounds in everyday foods. Researchers at Seoul National University of Science and Technology have successfully employed the technique to identify and quantify eight polycyclic aromatic hydrocarbons (pahs) – chemicals linked to increased cancer risk – with exceptional precision.

As health-conscious consumers increasingly prioritize nutrient-rich diets, concerns about contaminants in fruits, vegetables, and other foods are growing.PAHs, hydrophobic organic compounds, can enter the food chain through environmental exposure and are often exacerbated by cooking methods like grilling, roasting, and frying.

Traditional methods for PAH extraction and identification,such as solid-phase and liquid-liquid extraction,are known for being time-consuming,labor-intensive,and reliant on potentially harmful solvents. The QuEChERS method – standing for Fast, Easy, Cheap, effective, rugged, and Safe – offers a compelling alternative.

The SeoulTech team,led by Professor Joon-Goo Lee of the Department of Food Science and Biotechnology,meticulously tested the QuEChERS method across various food matrices. Their findings, published in food Science and Biotechnology, demonstrate the method’s remarkable consistency and accuracy.

“This method not only simplifies the analytical process but also demonstrates high efficiency in detection compared to conventional methods,” explains Prof. lee. “It can be applied to a wide range of food matrices.”

The study revealed impressive results: calibration curves exceeding 0.99 linearity,detection limits ranging from 0.006 to 0.035 µg/kg,and quantification limits between 0.019 and 0.133 µg/kg. Crucially, recovery rates were high – between 86.3% and 109.6% – indicating the method’s ability to accurately isolate and measure PAHs.

Impact on Industry and Public Health

The implications of this research are far-reaching. The streamlined QuEChERS method promises to significantly enhance food safety inspections, improve quality control within the food industry, and potentially reduce operational costs. Moreover, by simplifying the analytical process, it can contribute to a safer working habitat for food safety professionals.

This advancement arrives at a critical time, as public awareness of food safety and the potential health risks associated with chemical contaminants continues to rise. The ability to rapidly and accurately identify PAHs in food will empower both regulators and consumers, ultimately contributing to a healthier and more secure food supply.

What are the potential health risks associated with consuming foods containing acrylamide?

Cancer-Linked Compounds Discovered in Everyday Foods: What You Need to Know

Acrylamide: The Starchy Culprit

Acrylamide forms in starchy foods during high-temperature cooking, like frying, baking, and roasting. It’s not intentionally added; it’s a result of a chemical reaction between sugars and amino acids.

* Foods High in Acrylamide: French fries, potato chips, coffee, bread crusts, and even some breakfast cereals.

* Cancer Risk: The International Agency for Research on Cancer (IARC) classifies acrylamide as a “probable human carcinogen” based on animal studies.While human evidence is still evolving, minimizing exposure is prudent.

* Reducing Acrylamide Intake:

1. soak potatoes in water for 15-30 minutes before frying.
2. Don’t store potatoes in the refrigerator – this increases acrylamide formation during cooking.
3. Cook foods to a golden yellow color, not brown or burnt.
4. Choose lower-acrylamide coffee brands (some testing has shown variations).

Heterocyclic Amines (HCAs) & Polycyclic Aromatic Hydrocarbons (PAHs): The Grilled Danger

These compounds are created when muscle meat (beef, pork, poultry, fish) is cooked at high temperatures, especially grilling and frying. HCAs form from the reaction of amino acids and creatine, while PAHs form when fat drips onto hot surfaces, creating smoke.

* Foods High in HCAs & PAHs: Well-done grilled or fried meats, smoked meats, and charred foods.

* Cancer Risk: Both HCAs and PAHs are linked to increased risk of several cancers, including colorectal, breast, and prostate cancer.

* Minimizing HCA & PAH Exposure:

* Marinate meats – marinades can reduce HCA formation.

* Cook meat at lower temperatures for longer periods.

* Flip meat frequently during cooking.

* Trim excess fat to reduce dripping and smoke.

* Avoid charring food.

* Use indirect heat when grilling.

Phthalates: Hidden in Packaging & Processing

Phthalates are chemicals used to make plastics more flexible and are commonly found in food packaging, processing equipment, and even some food containers.They can leach into food, especially fatty foods.

* Foods Potentially Affected: Processed foods, packaged foods, dairy products, and fatty meats.

* Cancer Risk: Some phthalates are considered endocrine disruptors, meaning they can interfere with hormone function, potentially increasing the risk of hormone-related cancers.

* Reducing Phthalate Exposure:

* Choose fresh, whole foods over processed options.

* Store food in glass or stainless steel containers instead of plastic.

* Avoid heating food in plastic containers.

* Look for phthalate-free packaging when possible.

Bisphenol A (BPA): Another Plastic Concern

Similar to phthalates, BPA is a chemical used in the production of plastics and epoxy resins. It’s often found lining metal food cans and in some plastic containers.

* Foods Potentially Affected: Canned foods, beverages, and some plastic food containers.

* Cancer Risk: BPA is also an endocrine disruptor and has been linked to an increased risk of breast and prostate cancer in some studies.

* Reducing BPA Exposure:

* Choose BPA-free canned goods.

* Opt for fresh or frozen foods over canned options.

* Use glass or stainless steel containers for food storage.

Aflatoxins: The Mold-Related Threat

Aflatoxins are toxins produced by certain molds that can grow on crops like peanuts, corn, and tree nuts, especially in warm and humid climates.

* Foods Potentially Affected: Peanuts, corn, tree nuts (almonds, walnuts, pistachios), and spices.

* Cancer Risk: Aflatoxins are potent carcinogens, strongly linked to liver cancer.

* Reducing Aflatoxin Exposure:

* Purchase nuts and grains from reputable sources that test for aflatoxins.

* Properly store nuts and grains in a cool, dry place.

* Discard any nuts or grains that appear moldy or discolored.

Pesticide Residues: A Broad Spectrum of Concern

while not a single compound,pesticide residues on fruits and vegetables are a important concern. Some pesticides are known or suspected carcinogens.

* **Foods