Risk assessment of dietary exposure to aflatoxins in nuts and spices. A pilot study in Yerevan, Armenia

Abstract

The study aimed to assess aflatoxin (AFB1, AFB2, AFG1, AFG2) exposure and potential health risks through nuts and spices consumption by adults (age 18-65, n = 554) in the capital city of Yerevan, where one-third of the Armenian population resides. AFs occurrence in nuts (peanut, almond, pistachio) and spices (black pepper, red pepper, mix of spices) was detected using HPLC. Daily consumption of products among the adult population was collected using a method of Food Frequency Questionnaire. The deterministic approach for risk assessment involved calculating the estimated daily intake and margin of exposure (MOE) of AFs, based on the EFSA benchmark dose of 0.4 μg/kg bw/day. AFs contents in products ranged from 0.011 μg/kg (mixed spices) to 0.391 μg/kg (ground red pepper), all below the EU regulatory limits. Ground black pepper was the main contributor to estimated exposure and a health concern (i.e. MOE<10000) was identified for high consumers in the worst-case scenario. Moreover, a health concern was present for individuals with a consumption of all studied food items (41% of the sample). Comparison with studies from neighboring countries and global data emphasizes the need for continuous monitoring and regulation to mitigate aflatoxin exposure risks in countries of the Caucasus area and globally.