Prevalence and Risk Assessment of Aflatoxin in Iowa Corn during a Drought Year.

IF 2.7 Q2 FOOD SCIENCE & TECHNOLOGY

International Journal of Food Science Pub Date : 2023-11-20 eCollection Date: 2023-01-01 DOI:10.1155/2023/9959998

Emily H Branstad-Spates, Erin L Bowers, Charles R Hurburgh, Philip M Dixon, Gretchen A Mosher

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Abstract

Warm temperatures and drought conditions in the United States (US) Corn Belt in 2012 raised concern for widespread aflatoxin (AFL) contamination in Iowa corn. To identify the prevalence of AFL in the 2012 corn crop, the Iowa Department of Agriculture and Land Stewardship (IDALS) conducted a sample of Iowa corn to assess the incidence and severity of AFL contamination. Samples were obtained from grain elevators in all of Iowa's 99 counties, representing nine crop reporting districts (CRD), and 396 samples were analyzed by IDALS using rapid test methods. The statewide mean for AFL in parts per billion (ppb) was 5.57 ppb. Regions of Iowa differed in their incidence levels, with AFL levels significantly higher in the Southwest (SW; mean 15.13 ppb) and South Central (SC; mean 10.86 ppb) CRD (p < 0.05) regions of Iowa. This sampling demonstrated high variability among samples collected within CRD and across the entire state of Iowa in an extreme weather event year. In years when Iowa has AFL contamination in corn, there is a need for a proactive and preventive strategy to minimize hazards in domestic and export markets.

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干旱年份爱荷华州玉米黄曲霉毒素流行及风险评估。

2012年，美国玉米带的高温和干旱引发了人们对爱荷华州玉米中黄曲霉毒素(AFL)广泛污染的担忧。为了确定AFL在2012年玉米作物中的流行程度，爱荷华州农业和土地管理部(IDALS)对爱荷华州的玉米进行了取样，以评估AFL污染的发生率和严重程度。样本来自爱荷华州99个县的谷物升降机，代表9个作物报告区(CRD)，并通过IDALS使用快速测试方法对396个样本进行分析。以十亿分之一(ppb)计算的全州AFL平均值为5.57 ppb。爱荷华州不同地区的发病率不同，AFL的发病率在西南部(SW;平均15.13 ppb)和中南部(SC;平均10.86 ppb)的CRD (p < 0.05)。该采样表明，在极端天气事件年，在CRD和整个爱荷华州收集的样本之间存在高度变异性。在爱荷华州玉米受到AFL污染的年份，需要采取积极主动的预防策略，以尽量减少国内和出口市场的危害。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Food Science Agricultural and Biological Sciences-Food Science

CiteScore

6.20

自引率

2.50%

发文量

105

审稿时长

11 weeks

期刊介绍： International Journal of Food Science is a peer-reviewed, Open Access journal that publishes research and review articles in all areas of food science. As a multidisciplinary journal, articles discussing all aspects of food science will be considered, including, but not limited to: enhancing shelf life, food deterioration, food engineering, food handling, food processing, food quality, food safety, microbiology, and nutritional research. The journal aims to provide a valuable resource for food scientists, food producers, food retailers, nutritionists, the public health sector, and relevant governmental and non-governmental agencies.