Mycotoxins Research Laboratory, Agricultural Research Education and Extension Organization (AREEO), Iranian Research Institute of Plant Protection, Tehran, Iran.
Department of Chemistry, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran.
IET Nanobiotechnol. 2020 Sep;14(7):623-627. doi: 10.1049/iet-nbt.2020.0107.
Agricultural commodities, particularly cereals can be contaminated with mycotoxins during the pre- and post-harvest stage. The main goal of this study was to evaluate the efficacy of magnetic zeolite nanocomposite (MZNC) as an adsorbent for the reduction of mycotoxins in barley flour. The MZNC is synthesised using an eco-friendly and efficient procedure and characterised by zeta potential, field emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The adsorbent amount that affects the adsorption capacity was optimised. Low amounts of the nanocomposite removed >99% of aflatoxins, 50% of ochratoxin A, 22% of zearalenone, and 1.8% of the deoxynivalenol from the contaminated sample and adsorption by MZNC was better than the natural zeolite; this phenomenon is related to the wide surface of nanocomposites. Results provide new insights into possible future research that could overcome the challenges of using nanotechnology to eliminate mycotoxins from agricultural products. It can be hoped that the presence of cheap and eco-friendly mycotoxin binders such as the MZNC that is synthesised and utilised in this research will help to produce secure food and feed products.
在农作物的产前和产后阶段，农业大宗商品，尤其是谷物，可能会受到霉菌毒素的污染。本研究的主要目的是评估磁性沸石纳米复合材料（MZNC）作为一种吸附剂用于减少大麦粉中霉菌毒素的功效。MZNC 是通过一种环保且高效的方法合成的，并通过动电位、场发射扫描电子显微镜和能量色散 X 射线光谱进行了表征。优化了吸附剂用量以影响吸附容量。少量的纳米复合材料可从污染样品中去除 >99%的黄曲霉毒素、50%的赭曲霉毒素 A、22%的玉米赤霉烯酮和 1.8%的脱氧雪腐镰刀菌烯醇，且 MZNC 的吸附效果优于天然沸石；这种现象与纳米复合材料的宽表面积有关。研究结果为未来可能的研究提供了新的见解，这些研究可能有助于克服使用纳米技术从农产品中消除霉菌毒素的挑战。希望像 MZNC 这样的廉价且环保的霉菌毒素结合剂的存在，将有助于生产安全的食品和饲料产品，而 MZNC 是在本研究中合成和使用的。
