Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 28, Pages 8094-8098Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201702120
Keywords
biosensors; colorimetric methods; DNA barcoding; food authentication; nanotechnology
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Funding
- Italian Flagship Project NanoMax
- Italian Ager 12 Project Fine Feed For Fish-4F [2016-0101]
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Food trade globalization and the growing demand for selected food varieties have led to the intensification of adulteration cases, especially in the form of species substitution and mixing with cheaper taxa. This phenomenon has huge economic impact and sometimes even public health implications. DNA barcoding represents a well-proven molecular approach to assess the authenticity of food items, although its use is hampered by analytical constraints and timeframes that are often prohibitive for the food market. To address such issues, we have introduced a new technology, named Nano-Tracer, that allows for rapid and naked-eye molecular traceability of any food and requires limited instrumentation and cost-effective reagents. Moreover, unlike sequencing, this method can be used to identify not only the substitution of a fine ingredient, but also its dilution with cheaper ones.
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