巴西南部玉米（Zea mays L.）中的伏马菌素。

Fumonisins in corn (Zea mays L.) from Southern Brazil.

机构信息

a Laboratory of Mycotoxicology and Food Contaminants, Food Science and Technology Department, Center of Agricultural Sciences , Federal University of Santa Catarina , Florianopolis , Santa Catarina , Brazil.

出版信息

Food Addit Contam Part B Surveill. 2014;7(2):151-5. doi: 10.1080/19393210.2013.862745. Epub 2014 Jan 13.

DOI:10.1080/19393210.2013.862745

PMID:24914602

Abstract

A total of 232 samples of corn commercialised in Santa Catarina state, Southern Brazil (temperate zone climate), were evaluated from 2007 to 2012 for fumonisins (FBs: FB1 and FB2). Before performing this study, a FBs method with liquid chromatography and fluorescence detection (ex. 335; em. 440 nm) was validated first. FBs were detected in 46.6% (108 samples), with values ranging from 66 to 7832 µg kg(-1) for FB1 and 110 to 1201 µg kg(-1) for FB2. The number of contaminated corn samples for FB1 and FB2 varied and often presented contamination of FB1 only. Per year of analysis, the numbers were: n = 22/8(FB1/FB2), 44/5(FB1/FB2), 25/12(FB1/FB2), 4(FB1), 6(FB1) and 7(FB1) in 2007, 2008, 2009, 2010, 2011 and 2012, respectively. The contamination percentage was 42.3/15.4, 59.5/6.8, 43.8/21.1, 36.4, 35.3 and 33.3%, respectively, during these years. Consumers can be exposed to these mycotoxins and their health can be at risk through the consumption of contaminated corn.

摘要

2007 年至 2012 年，对产自巴西南部南里奥格兰德州（温带气候）的 232 份商业化玉米样本进行了伏马菌素（FBs：FB1 和 FB2）检测。在进行这项研究之前，首先对液相色谱和荧光检测法（激发波长 335nm，发射波长 440nm）进行了 FBs 方法验证。结果发现，46.6%（108 个样本）的玉米样本中检测到了 FBs，FB1 的含量范围为 66 至 7832μg/kg，FB2 的含量范围为 110 至 1201μg/kg。FB1 和 FB2 污染玉米样本的数量各不相同，且常常只受到 FB1 的污染。每年的分析结果如下：2007 年、2008 年、2009 年、2010 年、2011 年和 2012 年，FB1/FB2 比值分别为 n = 22/8、44/5、25/12、4、6 和 7；FB1 的污染率分别为 42.3/15.4、59.5/6.8、43.8/21.1、36.4、35.3 和 33.3%。在此期间，消费者可能会通过食用受污染的玉米而接触到这些霉菌毒素，从而使其健康面临风险。