Concentration and Probabilistic Health Risk of Polychlorinated Biphenyls in Cheese Samples Collected From Tehran, Iran Publisher



Shariatifar N¹ ; Maftahi M² ; Tooryan F² ; Arabameri M^{3, 4}
Source: International Journal of Dairy Technology Published:2022

Abstract

This study focused on the measurement of non-dioxin-like polychlorinated biphenyls (NDL-PCBs) in cheese samples (traditional and commercial cheese) by a modified QuEChERS (quick, easy, cheap, effective, rugged and safe) method by gas chromatography (GC) coupled with triple-quadrupole (QqQ) tandem mass spectrometry (MS/MS). The recovery of NDL-PCBs was in the range of 93.22–109.19%, and relative standard deviation (RSD) was in the range of 4.24–9.04%. Also, the limit of detections (LODs) and the limit of quantifications (LOQs) for the PCB analytes ranged from 0.04 to 0.14 ng/g and 0.120 to 0.420 ng/g respectively. The results showed that the mean level of Ʃ6-NDL-PCBs in cheese samples was 9.83 ± 3.12 ng/g and maximum was 18.27 ng/g fat, which was lower than the European Union (EU) standard levels (40 ng/g fat in dairy products). The estimated daily intake of 6 NDL-PCBs through cheese consumption was lower than the tolerable daily intake. Incremental lifetime cancer risk for children and adults due to six PCBs was 7.03E-6 and 3.14E-5, which was lower than the acceptable risk level (10−4). © 2022 Society of Dairy Technology.