中文摘要：本研究采用23全因子设计方法，评价了O3浓度、暴露时间和谷物质量对小麦籽粒中脱氧雪腐镰刀菌烯醇、黄曲霉毒素水平和总真菌数量（TFC）的影响。本研究发现的数据有助于引起食品工业对臭氧作用的更大的兴趣，从而更广泛地向消费者推广臭氧处理产品。
外文摘要：The effects of O3 concentration, exposure time and grain mass were evaluated on the levels of deoxynivalenol, aflatoxins and total fungal count (TFC) in wheat grains, using a full 23 factorial design. Grain samples were contaminated with fungal conidia and spiked with mycotoxins standards and then submitted to ozonation treatments. The most significant reductions obtained for deoxynivaThe effects of O3 concentration, exposure time and grain mass were evaluated on the levels of deoxynivalenol, aflatoxins and total fungal count (TFC) in wheat grains, using a full 23 factorial design. Grain samples were contaminated with fungal conidia and spiked with mycotoxins standards and then submitted to ozonation treatments. The most significant reductions obtained for deoxynivalenol and total aflatoxins corresponded to 64.3 and 48.0%, respectively. TFC reduced approximately 3.0 cycles log cfu/g of wheat grain. O3 concentration and exposure time influenced (P 3 for 300 min, with 2 kg samples. Gaseous O3 can be considered an excellent method for remediation of these contaminants. Practical ApplicationsGaseous ozonation is an interesting nonthermal technology that can be applied to reduce fungal and mycotoxin contamination in wheat grains (Triticum aestivum L.). The O3 concentration and exposure time positively influence reductions in mycotoxins and fungi count, while grain mass has a negative effect on both variables. Using 60 mg/L of O3 at 300 min of exposure and 2 kg grain samples (11.3% moisture content) is possible to obtain reductions of 3.0 cycles log cfu/g in total fungal count, 64.3% in DON levels and 48.0% in total aflatoxin levels. Data found in this research should contribute in greater interest of ozonation by the food industry and consequently a wider popularization of ozonized products by consumers.
lenol and total aflatoxins corresponded to 64.3 and 48.0%, respectively. TFC reduced approximately 3.0 cycles log cfu/g of wheat grain. O3 concentration and exposure time influenced (P 3 for 300 min, with 2 kg samples. Gaseous O3 can be considered an excellent method for remediation of these contaminants.
作者：Trombete, FM；Porto, YD；Freitas-Silva, O；Pereira, RV；Direito, GM；Saldanha, T；Fraga, ME
作者单位：Univ Fed Rural Rio de Janeiro
期刊名称：JOURNAL OF FOOD PROCESSING AND PRESERVATION
期刊影响因子：0.894
出版年份：2017
出版刊次：3
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