Lead chromate, flour, curcuma, Metanil Yellow or Sudan Dye, anyone? These are just some of the possibly hazardous adulterants that may make their appearance in turmeric, a popular and pricey spice and ingredient in dietary supplements. The American Botanical Council published a laboratory guidance document to determine the proper methods for the analysis of a number of adulterants. The document gives lists of the methods with their pros and cons, grouped by type of adulterant.
- Cardellina II, J.H., Ph.D. (2020). “Turmeric Raw Material and Products Laboratory Guidance Document”. American Botanical Council.