Biotechnology Department, Kuwait Institute for Scientific Research, 13109 Safat, Kuwait.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2010 Jun;27(6):869-78. doi: 10.1080/19440040903493793.
Concentrations of polycyclic aromatic hydrocarbons (PAHs) were determined in 115 samples of olive oil (extra virgin olive oil, virgin olive oil, olive oil, pomace olive oil and blended olive oil), cooking oil (corn oil, sunflower oil, sesame oil, palm olein oil, soya oil, canola oil, mustard oil, peanut oil and mixed vegetable oil) and fat (butter and table margarine) collected from retail stores in Kuwait. Carcinogenic benzo[a]pyrene (BaP) was detected in 43% of the samples analyzed. Benz[a]anthracene and chrysene were detected in 37 and 45% of the samples, respectively, that did not contain BaP. Of the individual non-carcinogenic PAHs, naphthalene showed the highest mean concentration (14 microg kg(-1)), while for the carcinogenic PAHs, BaP (0.92 microg kg(-1)) and chrysene (0.87 microg kg(-1)) showed the highest mean values. Approximately 20% of the samples within the olive oil and cooking oil sub-categories exceeded the EU maximum tolerable limit for BaP, with the highest level of 6.77 and 11.1 microg kg(-1), respectively. For the fat sub-category, 9% of the samples exceeded the tolerance limit, with the highest level of 3.67 microg kg(-1). The Kuwaiti general population's dietary exposure to the genotoxic PAHs (PAH8: benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene, dibenz[a,h]anthracene and benzo[ghi]perylene) was estimated to be 196 ng day(-1) (3.3 ng kg(-1) bw day(-1), assuming an average adult body weight of 60 kg). Results indicated that PAH8 and BaP(eq) (total sum benzo[a]pyrene equivalents) are more reliable measures of the concentrations of other carcinogenic PAHs in oil and fat samples, while BaP and PAHs alone are not good indicators of the occurrence or degree of contamination by carcinogenic PAHs in these food products.
在科威特的零售店采集了 115 份橄榄油（特级初榨橄榄油、初榨橄榄油、橄榄油、橄榄渣油和混合橄榄油）、食用油（玉米油、葵花籽油、芝麻油、棕榈油、大豆油、菜籽油、芥子油、花生油和混合植物油）和脂肪（黄油和人造黄油）样品，测定了其中多环芳烃（PAHs）的浓度。在所分析的样品中，有 43%检测出了致癌的苯并[a]芘（BaP）。在不含 BaP 的样品中，苯并[a]蒽和屈分别检出 37%和 45%。在非致癌的 PAHs 中，萘的平均浓度最高（14μg/kg），而在致癌的 PAHs 中，BaP（0.92μg/kg）和屈（0.87μg/kg）的平均浓度最高。橄榄油和食用油子类别的大约 20%的样品超过了欧盟对 BaP 的最大耐受限量，最高水平分别为 6.77μg/kg 和 11.1μg/kg。在脂肪子类别中，有 9%的样品超过了耐受限量，最高水平为 3.67μg/kg。科威特普通人群从饮食中摄入的致基因突变多环芳烃（PAH8：苯并[a]蒽、屈、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘、茚并[1,2,3-cd]芘、二苯并[a,h]蒽和苯并[ghi]苝）估计为 196ng/d（3.3ng/kg bw/d，假设平均成人体重为 60kg）。结果表明，PAH8 和 BaP(eq)（苯并[a]芘等效总量）是衡量油和脂肪样品中其他致癌多环芳烃浓度的更可靠指标，而 BaP 和 PAHs 本身并不能很好地指示这些食品中致癌多环芳烃的存在或污染程度。
