SERS Detection of Metanil Yellow in Turmeric – Protecting consumer safety with Misa

Metanil yellow (MY) is an azo dye used in the manufacture of external-use products such as textiles; however, it is prohibited from use as a food additive in many countries. Toxicology studies demonstrate that ingestion of MY results in significant neurological and multi-organ damage. Despite these hazards, MY is commonly used as an illicit colorant for enhancing the visual appeal of spices and legumes, most notably turmeric. Ideal tests for such food adulterants feature methods that are selective and sensitive, yet portable and convenient.

Misa (Metrohm Instant SERS Analyzer) achieves rapid and accurate detection of MY in a facile assay format.