Survey of ochratoxin a in UK retail coffees

摘要

A new method providing sensitivity to low concentra- tions was developed for the analysis of ochratoxin A in roast and ground and soluble coffee and a survey has been carried out to determine levels of ochratoxin A (OTA) in 100 samples of retail coffees available in the UK. The surfvey covered 80 soluble coffees (granulated, Powdered, freeze-dried), of which nine products were Decaffeinated, and 20 roast and ground retail coffee Samples. OTA was detected (≥0.1 μg|kg) in 64 Samples of soluble coffee at levels ranging from 0.1 to 8 μg|kg. Seventeen samples of roast and ground coffee contained OTA at levels between 0.2 and 2/1 μg/kg.