Co-occurrence of Deoxynivalenol and Zearalenone in Cereals and their Products
Co-occurrence of Deoxynivalenol and Zearalenone in Cereals and their Products
复制标题
谷物及其制品中脱氧雪腐镰刀菌烯醇和玉米赤霉烯酮的共存
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
H. Chun
中科院分区：
文献类型：
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作者：
H. Ok;Hyun;Sungwook Choi;Nari Lee;Hyun;M. Koo;H. Chun
脱氧雪腐镰刀菌烯醇（DON）和玉米赤霉烯酮（ZEN）是由可以生长在谷物上的镰刀菌属物种产生的天然存在的毒素。本研究的目的是确定谷物产品中DON和ZEN的发生率和污染水平。在2005年至2006年期间，食环署从零售店铺随机抽取了70个谷类产品样本。DON和ZEN分别采用高效液相色谱荧光检测器和紫外检测器进行分析。DON和ZEN的检测限分别为4.4 μg kg-1和3.4 μg kg-1。在70份样本中，分别有37份和17份检测到DON和ZEN，但发现的水平非常低。特别是，在70个样品中，12个玉米和大麦样品被DON和ZEN共污染，DON的水平范围为5.6至1842.3 µg kg-1，ZEN的水平范围为12.1至174.9 µg kg-1。然而，在早餐谷物和小麦粉中未检测到DON和ZEN。LC-MS证实，干玉米粒样品中的DON和ZEN含量最高。这项研究表明，DON和ZEN共污染，谷物产品中的含量较低。
Deoxynivalenol (DON) and zearalenone (ZEN) are naturally occurring toxins produced by Fusar- ium species, which may grow on cereals. The aims of this study were to determine the incidence and contamination levels of DON and ZEN in cereal products. Seventy samples of cereal products were randomly selected from retail outlets during 2005 and 2006. DON and ZEN were analyzed by using high performance liquid chromatography with fluorescence and UV-detector, respectively. Detection limits were 4.4 µg kg -1 for DON and 3.4 µg kg -1 for ZEN. DON and ZEN were detected in 37 and 17, respectively, of the 70 samples, but the levels found were very low. In particular, out of 70 samples, 12 samples of corn and barley were co-contaminated with DON and ZEN, with levels ranging from 5.6 to 1842.3 µg kg -1 for DON and 12.1 to 174.9 µg kg -1 for ZEN, respectively. However, DON and ZEN were not detected in breakfast cereals and wheat flour. The highest level was found in dried corn kernel samples that confirmed by LC-MS. This study show that DON and ZEN co-contaminate with low levels in cereal products.