Occurrence and exposure to polycyclic aromatic hydrocarbons in kindling-free-charcoal grilled meat products in Taiwan

This study aimed to determine the contents of 16 PAHs in kindling-free-charcoal grilled meat and seafood products by GC-MS coupled with a QuEChERS method, and estimate the potential risk associated with consumption of those products in Taiwan. Results showed that the total PAHs contents ranged from 6.3 +/- 0.9 to 238.8 +/- 8.3 ng/g in poultry meat, 0.1 +/- 0.0-547.5 +/- 12.2 ng/g in red meat, and 6.6 +/- 1.4-249.7 +/- 6.4 ng/g in seafood products. Among various PAHs, the highly carcinogenic benzo[a]pyrene was detected in chicken breast grilled at 84 degrees C (30 min), chicken heart at 100 degrees C (26 min), chicken drumstick at 74 degrees C (20 min), duck drumstick at 85 degrees C (40 min), and lamb steak at 88 degrees C (12 min), with its level amounting to 1.3 +/- 0.0, 2.4 +/- 0.1, 4.0 +/- 1.3, 3.1 +/- 0.0, and 5.8 +/- 0.5 ng/g, respectively. The generation of PAHs was associated with grilling time, temperature and fat content. Risk assessment of dietary exposure to PAHs revealed toxicity equivalent to range from ND - 6.174 +/- 0.505 mu g/g and margin of exposure was >10,000, which agreed with the EFSA's definition of low public health concern. The lifelong average daily PAHs intake was higher for adults than for elderly people in Taiwan, however, consumption of kindling-free-charcoal grilled meat should not be a public health concern based on cancer risk potency. (c) 2014 Elsevier Ltd. All rights reserved.