中文摘要：本研究旨在调查上埃及三个地区动物饲料（n=77）和玉米（n=79）共156个样品中多重有毒真菌和细菌代谢物。目标分析物采用“直接进样”接LC-MS/MS分析法测定。研究发现，根据国际标准，除玉米中的AFB1外，调查地区的污染率不高。强烈推荐有必要进行进一步持续监测，以建立霉菌毒素发生的数据库。
外文摘要：BACKGROUND: This study was conducted to investigate the occurrence of multiple toxic fungal and bacterial metabolites in 156 animal feed (n = 77) and maize (n = 79) samples collected from three regions in Upper Egypt. The target analytes were quantified using the "dilute and shoot" approach followed by an LC-MS/MS analysis. RESULTS: A total number of 115 fungal and bacterial metabolites were detected in both matrices including the regulated mycotoxins in the EU in addition to the modified forms such as DON-3-G. Furthermore, some Fusarium, Alternaria, Aspergillus, and Penicillum metabolites beside other fungal and bacterial metabolites were detected for the first time in Egypt. All the samples were contaminated with at least four toxins. On average 26 different metabolites were detected per sample with a trend of more metabolites in feed than in maize. The maximum number of analytes observed per samples was 54 analytes at maximum concentrations ranging from 0.04 µg kg-1 for tentoxin to 25040 µg kg-1 for kojic acid. CONCLUSION: The contamination rates in the investigated regions according to the international standards, except for AFB1 in maize, were not alarming. The necessity of further and continuous monitoring is highly recommended in order to establish a database for mycotoxin occurrence.
外文关键词：mycotoxins；animal feed；maize；LC-MS/MS；Egypt
作者：Abdallah, MF；Girgin, G；Baydar, T；Krska, R；Sulyok, M
作者单位：Univ Nat Resources & Life Sci
期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
期刊影响因子：2.076
出版年份：2017
出版刊次：13
点击下载：用LC-MS/MS检测埃及动物饲料及玉米样品中多重霉菌毒素及其它真菌代谢物的发生情况