Occurrence of aflatoxins and ochratoxin A in rice samples from six provinces in China
Occurrence of aflatoxins and ochratoxin A in rice samples from six provinces in China
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中国六省稻米样品中黄曲霉毒素和赭曲霉毒素A的含量
DOI：
10.1016/j.foodcont.2014.09.029
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发表时间：
2015-04-01
期刊：
影响因子：
6
通讯作者：
Liu, Chenglan
中科院分区：
文献类型：
--
作者：
Lai, Xianwen;Liu, Ruicen;Liu, Chenglan
在本研究中，采用分散液液微萃取结合液相色谱荧光检测技术，对从中国六个省采集的 370 个大米样品中黄曲霉毒素 (AF) 和赭曲霉毒素 A (OTA) 的存在情况进行了调查。本次调查结果显示，63.5%（235/370）和4.9%（18/370）的大米样品中分别含有可检测量的AF和OTA。阳性样品中AFB(1)、总AF和OTA的平均水平分别为0.60、0.65和0.85μg/kg。 AFB(1) 和 AFB(2) 存在于所有六个省份的样品中，并且分别可以在 87 个和 32 个样品中进行定量。 OTA 存在于四个省份的样本中，并且可以在 6 个样本中进行量化。大米样品中 AFB(1) 和 OTA 含量超出欧盟限值的百分比分别为 1.4% (5/370) 和 0.3% (1/370)。结果表明，大米中霉菌毒素含量低于监管限值，大米商品总体安全。它还表明需要建立持续监测计划来预防和管理这些污染物的发生。 (C) 2014 Elsevier Ltd. 保留所有权利。
In this study, a total of 370 rice samples collected from six provinces in China were surveyed for the presence of aflatoxins (AFs) and ochratoxin A (OTA) using dispersive liquid liquid microextraction coupled to liquid chromatography with fluorescence detection. The results obtained in this survey showed that 63.5% (235/370) and 4.9% (18/370) of rice samples contained detectable amounts of AFs and OTA, respectively. The average levels of AFB(1), total AFs and OTA in positive samples were 0.60, 0.65 and 0.85 mu g/kg, respectively. AFB(1) and AFB(2) were present in samples from all six provinces and could be quantified in 87 and 32 samples, respectively. OTA was present in samples from four provinces and could be quantified in 6 samples. The percentages of rice samples with AFB(1) and OTA levels above the EU limit were 1.4% (5/370) and 0.3% (1/370), respectively. The results show that the levels of the mycotoxins in rice are below regulatory limits and the rice commodities are generally safe. It also indicates the need to establish a continuous monitoring program to prevent and manage the occurrence of these contaminants. (C) 2014 Elsevier Ltd. All rights reserved.