Medical Parasitology and Mycology Department, School of Medicine, Hamadan University of Medical Sciences and Health Services, Hamadan, Iran.
Mycopathologia. 2011 Aug;172(2):153-60. doi: 10.1007/s11046-011-9405-y. Epub 2011 Mar 4.
Fifty-one maize samples, intended for animal feed and human consumption, were collected from the four main maize production provinces in Iran and analyzed by high-performance liquid chromatography (HPLC) for contamination by four naturally occurring aflatoxin analogues (AFB1, AFB2, AFG1, and AFG2). AFB1 was detected in 58.3, and 80% of the maize samples obtained from Kermanshah and Mazandaran provinces, respectively. The maximum AFB1 (276.3 μg/kg) and highest level of total aflatoxins (AFT) (316.9 μg/kg) were detected in a maize sample collected from Kermanshah province. The mean aflatoxin level from contaminated samples (52.60 μg/kg) from Kermanshah was significantly higher (P < 0.0001) than those in maize from the other three provinces and exceeded all the maximum tolerated levels (MTLs) set for AFT in maize. The level of AFB1 in 15.68% of the total samples was above the MTL (5 μg/kg) for AFB1 in maize in Iran. The mean contamination level of AFT (23.86 μg/kg) in the positive samples was higher than MTL for maize in Iran (20 μg/kg) intended for animal feed. The levels of AFB1, AFB2, AFG1, and AFG2 ranged between not detected (<0.1 μg/kg) and 276.3, 30.4, 9.1, and 1.1 μg/kg in maize grain, respectively.
从伊朗四个主要的玉米生产省份采集了 51 个玉米样本，用于动物饲料和人类消费，并通过高效液相色谱法（HPLC）对其进行了分析，以检测四种天然存在的黄曲霉毒素类似物（AFB1、AFB2、AFG1 和 AFG2）的污染情况。在从克尔曼沙阿省和马赞达兰省获得的玉米样本中，分别检测到 58.3%和 80%的样本中存在 AFB1。在从克尔曼沙阿省采集的一个玉米样本中，检测到的 AFB1 最高（276.3μg/kg），总黄曲霉毒素（AFT）含量最高（316.9μg/kg）。来自克尔曼沙阿省受污染样本的平均黄曲霉毒素水平（52.60μg/kg）明显高于其他三个省份（P<0.0001），超过了伊朗设定的玉米中 AFT 的最大允许水平（MTL）。在总样本中，有 15.68%的样本中 AFB1 的含量超过了伊朗设定的玉米中 AFB1 的 MTL（5μg/kg）。阳性样本中 AFT 的平均污染水平（23.86μg/kg）高于伊朗规定的用于动物饲料的玉米 MTL（20μg/kg）。在玉米中，AFB1、AFB2、AFG1 和 AFG2 的含量范围分别为未检出（<0.1μg/kg）到 276.3、30.4、9.1 和 1.1μg/kg。
