What is food adulteration and how can nuclear science detect it?

Translation. Region: Russian Federation –

Source: International Atomic Energy Agency –

An important disclaimer is at the bottom of this article.

Each element has its own chemical fingerprint. This fingerprint is based on its atomic composition: neutrons, protons, and electrons. Atoms with the same number of protons and different numbers of neutrons are called isotopes—they allow scientists to determine whether a product is genuine.

The ratio of stable isotopes in food products can vary depending on various factors, such as time, region, and environmental conditions in which the product was produced. For example, isotope analysis can be used to determine the isotopic composition of carbon contained in honey. This allows for the detection of adulterated honey containing added sugar or syrup. According to Russian research, isotope analysis of oxygen and hydrogen can serve as an indicator of the geographical origin of honey, since the biological materials (nectar) in honey are characterized by the same ratio of oxygen and hydrogen isotopes as local water.

Stable isotopes can be measured using specialized equipment that detects minute differences in the ratio of their heavy and light forms. This information can be used to determine the origin of food products. Stable isotope ratios act like nature's "fingerprint" on food products. This information allows us to determine whether the products we buy have been adulterated or whether they contain the genuine ingredients listed on the label. By tracking these isotopic fingerprints, scientists can also determine the geographical or botanical origin of foods.

Isotopes also make it possible to detect adulteration or complete substitution of food products with cheap ingredients that have identical chemical structures but different isotopic fingerprints. For example, they can help detect the use of synthetic flavors instead of natural ones; high-fructose corn syrup in honey; or orange juice made from concentrate instead of freshly squeezed.

Please note: This information is raw content obtained directly from the source. It represents an accurate account of the source's assertions and does not necessarily reflect the position of MIL-OSI or its clients.