Spices have been an ongoing hot target for fraudulent activity, whether it is the addition of inedible substances like dyes, or bulking agents, such as brick powder, other plant material, sawdust and many other, potentially hazardous substances. A relatively new technology, next-generation sequencing (NGS), enables to analyze the DNA of complex samples such as spices and herbs. The DNA findings are compared to a database and allow to detect many thousands of species in one test. Currently, working groups are developing standardized methods for such authenticity tests.
- Woolfe, M. (July 13, 2021). “NGS (Next Generation Sequencing) is Helping to Prevent Fraud in the Herb and Spice Trade”. Food Authenticity Network.