中文摘要：本研究按财政年度抽样和测试了2009-2014年加拿大生产销售的食品中赭曲霉素A（OTA）污染的情况。分析了谷物食品、水果食品和豆类食品样品（6857个），结果发现2.3%的样品超过了加拿大建议的OTA审管限制；2.7%超过了欧盟（EU）当前的OTA监管范围。与2010年发布的加拿大健康暴露评估相吻合，只是包含了更广泛的产品，并确定了在加拿大各地广泛使用的食品的安全性。
外文摘要：The extent of ochratoxin A (OTA) contamination of domestically produced foods sold across Canada was determined from 2009 to 2014 with sampling and testing occurring each fiscal year. Cereal-based, fruit-based, and soy-based food samples (n = 6,857) were analyzed. Almost half of the samples (3,200; 47%) did not contain detectable concentrations of OTA. The remaining 3,657 samples contained OTA at 0.040 to 631 ng/g. Wheat, oats, milled products of other grains (such as rye and buckwheat), and to a lesser extent com products and their derived foods were the most significant potential sources of OTA exposure for the Canadian population. Wine, grape juice, soy products, beer, dairy-based infant formula, and licorice candy were not significant contributors to OTA consumption. Spices had the highest OTA concentrations; but because so little is ingested, these foods are not considered to be a significant source of OTA. In contrast, infant formulas and cereals can be important dietary sources of OTA. Infant cereals containing oats and infant formulas containing soy had detectable concentrations of OTA, some of which exceeded the proposed Canadian guidelines. The prevalence and concentrations of OTA in major crops (wheat, com, and oats) varied widely across years. Because these foods were purchased at retail stores, no information was available on the OTA concentrations in the raw materials, the storage conditions before purchase of the samples, or the origin of the ingredients (may include blends of raw materials from different years and/or different geographical regions of Canada); therefore, impact of these factors could not be assessed. Overall, 2.3% of the samples exceeded the proposed Canadian OTA regulatory limits and 2.7% exceeded the current European Union (EU) OTA regulatory limits. These results are consistent with a Health Canada exposure assessment published in 2010, despite the inclusion of a wider range of products and confirm the safety of foods widely available across Canada.
外文关键词：Canada；Food contaminants；Ochratoxin A；Survey
作者：Kolakowski, B；O'Rourke, SM；Bietlot, HP；Kurz, K；Aweryn, B
作者单位：Canadian Food Inspect Agcy
期刊名称：JOURNAL OF FOOD PROTECTION
期刊影响因子：1.609
出版年份：2016
出版刊次：12
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