Mazaheri Mansooreh
Institute of Standard and Industrial Research of Iran (ISIRI), P.O. Box 31585-163, Karaj, Iran.
Food Chem Toxicol. 2009 Aug;47(8):2064-6. doi: 10.1016/j.fct.2009.05.027. Epub 2009 May 27.
Aflatoxins (AFs) are highly toxic and carcinogenic secondary fungal metabolites and have been detected in various food commodities including cereals. Rice were imported to Iran during March 2006-March 2007 analyzed for aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), aflatoxin G1 (AFG1) and aflatoxin G2 (AFG2) using immunoaffinity column and quantitated by HPLC. In this regard, 71 rice samples were collected. After dividing samples to sub-samples, AF analyses were done. Among 71 samples analyzed, AFB1 was detected in 59 samples (83% of the total). The mean of AFB1 was 1.89 ng/g for all samples (with the not detected samples taken as zero). Total AF (AFT) was detected in 59 samples (83% of the total). The mean of AFT was 2.09 ng/g for all samples. AFB1 level in two samples (2.8%) was above the maximum tolerated level (MTL) of AFB1 in Iran (5 ng/g). Regarding AFT, the mean contamination level (2.09 ng/g) was lower than MTL of AFT in rice in Iran as well as lower than maximum level of EU for AFT (4 ng/g), and only nine samples had levels above the MTL of EU in AFT.
黄曲霉毒素(AFs)是剧毒且具有致癌性的次生真菌代谢产物,已在包括谷物在内的各种食品中被检测到。对2006年3月至2007年3月期间进口到伊朗的大米进行了分析,使用免疫亲和柱检测黄曲霉毒素B1(AFB1)、黄曲霉毒素B2(AFB2)、黄曲霉毒素G1(AFG1)和黄曲霉毒素G2(AFG2),并通过高效液相色谱法进行定量。在此方面,收集了71份大米样品。将样品分成子样品后,进行了AF分析。在分析的71个样品中,59个样品(占总数的83%)检测到AFB1。所有样品中AFB1的平均值为1.89纳克/克(未检测到的样品计为零)。59个样品(占总数的83%)检测到总AF(AFT)。所有样品中AFT的平均值为2.09纳克/克。两个样品(2.8%)中的AFB1水平高于伊朗AFB1的最大耐受水平(MTL)(5纳克/克)。关于AFT,平均污染水平(2.09纳克/克)低于伊朗大米中AFT的MTL,也低于欧盟AFT的最大限量(4纳克/克),只有9个样品的AFT水平高于欧盟的MTL。