中文摘要:谷物暴露于真菌污染物的风险很高,且从植物生长开始,经收割、加工、储存到最终产品运输的任何阶段都可能发生。粮食中霉菌毒素的含量与存在的真菌生物量密不可分,真菌生物量代表了真菌的发生并间接代表其代谢产物的出现。本研究分析了2006、2007和2008年从波兰粮食收购站和磨粉厂采集的378个小麦、小黑麦、大麦、黑麦和燕麦样品。分析了单端孢霉烯族ERG和霉菌毒素的浓度及CFU数。研究发现单端孢霉烯族毒素含量与ERG浓度(高于总毒素浓度的相关性/log cfu/g)间高度显著的相关性表明粮食中这种代谢物的水平与霉菌毒素含量密不可分。
外文摘要:INTRODUCTION AND OBJECTIVE: The risk of cereal exposure to microbial contamination is high and possible at any time, starting from the period of plant vegetation, through harvest, up to the processing, storage and transport of the final product. Contents of mycotoxins in grain are inseparably connected with the presence of fungal biomass, the presence of which may indicate the occurrence of a fungus, and indirectly also products of its metabolism. MATERIALS AND METHOD: Analyses were conducted on 378 grain samples of wheat, triticale, barley, rye and oats collected from grain silos located at grain purchase stations and at mills in Poland in 2006, 2007 and 2008. The concentrations of ERG and mycotoxins from the group of trichothecenes, as well as CFU numbers were analysed. RESULTS: The tested cereals were characterised by similarly low concentrations of both the investigated fungal metabolites and the level of microscopic fungi. However, conducted statistical analyses showed significant variation between tested treatments. Oat and rye grain contained the highest amounts of ERG, total toxins and CFU. In turn, the lowest values of investigated parameters were found in grain of wheat and triticale. CONCLUSIONS: Chemometric analyses, based on the results of chemical and microbiological tests, showed slight differences between contents of analysed metabolites between the years of the study, and do not confirm the observations on the significance of the effect of weather conditions on the development of mycobiota and production of mycotoxins; however, it does pertain to treatments showing no significant infestation. Highly significant correlations between contents of trichothecenes and ERG concentration (higher than in the case of the correlation of the total toxin concentrations/log cfu/g), indicate that the level of this metabolite is inseparably connected with mycotoxin contents in grain.
外文关键词:CFU;ergosterol;trichothecenes;cereals
作者:Stuper-Szablewska, K;Perkowski, JL
作者单位:Univ Life Sci
期刊名称:ANNALS OF AGRICULTURAL AND ENVIRONMENTAL MEDICINE
期刊影响因子:0.895
出版年份:2017
出版刊次:1
点击下载:波兰2006-2008年收割的小麦、燕麦、大麦、黑麦和小黑麦籽粒中真菌及单端孢霉烯族霉菌毒素的污染水平