Department of Food Safety and Quality, Lithuanian University of Health Sciences, Kaunas, Lithuania.
Department of Food Science and Technology, Kaunas University of Technology, Kaunas, Lithuania.
J Sci Food Agric. 2019 Mar 30;99(5):2348-2355. doi: 10.1002/jsfa.9433. Epub 2018 Dec 30.
Higher alcohols and esters have a negative impact on ethanol quality; therefore, to analyze the influence of mycotoxins and pesticides on higher alcohols and esters formation during ethanol production from contaminated cereal grains is of outstanding importance.
In this study, the yield of ethanol and the composition of volatile by-products (acetaldehyde, methyl acetate, ethyl acetate, methanol, propanol, isobutanol, amyl and isoamyl alcohols) after fermentation of wheat grains artificially contaminated with Fusarium sporotrichioides and pesticides (triasulfuron and sulfosulfuron) were analyzed. Wheat grains contamination with triasulfuron significantly reduced ethanol yield and increased isobutanol and ethyl acetate content. Moreover, wheat grains infection with F. sporotrichioides significantly increased methyl acetate, ethyl acetate, isobutanol, and amyl and isoamyl alcohols content. Significant differences between pesticides and wheat variety on volatile compounds formation in ethanol has been estimated.
The results showed that grains contaminated with F. sporotrichioides and pesticides significantly influenced the process of alcoholic fermentation that leads to variation of by-products in ethanol, including higher alcohols, esters, and aldehydes. © 2018 Society of Chemical Industry.
高级醇和酯类对乙醇质量有负面影响；因此，分析真菌毒素和农药对污染谷物乙醇生产过程中高级醇和酯类形成的影响具有重要意义。
在这项研究中，分析了人工污染的小麦籽粒经发酵后乙醇的产量和挥发性副产物（乙醛、甲基乙酸酯、乙酸乙酯、甲醇、丙醇、异丁醇、戊醇和异戊醇）的组成，小麦籽粒受三磺隆污染后，乙醇产量显著降低，异丁醇和乙酸乙酯含量增加。此外，小麦感染 F. sporotrichioides 后，甲基乙酸酯、乙酸乙酯、异丁醇和戊醇和异戊醇的含量显著增加。估计了农药和小麦品种对乙醇中挥发性化合物形成的差异。
结果表明，受 F. sporotrichioides 和农药污染的谷物会显著影响酒精发酵过程，导致乙醇中副产物（包括高级醇、酯和醛）发生变化。© 2018 英国化学学会。
