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Molecules

Title:		Influence of Triazole Pesticides on Wine Flavor and Quality Based on Multidimensional Analysis Technology
Author(s):		Xiao O; Li M; Chen J; Li R; Quan R; Zhang Z; Kong Z; Dai X;
Address:		"Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China. Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China"
Journal Title:		Molecules
Year:		2020
Volume:		20201128
Issue:		23
Page Number:		-
DOI:		10.3390/molecules25235596
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Triazole pesticides are widely used to control grapevine diseases. In this study, we investigated the impact of three triazole pesticides-triadimefon, tebuconazole, and paclobutrazol-on the concentrations of wine aroma compounds. All three triazole pesticides significantly affected the ester and acid aroma components. Among them, paclobutrazol exhibited the greatest negative influence on the wine aroma quality through its effect on the ester and acid aroma substances, followed by tebuconazole and triadimefon. Qualitative and quantitative analysis by solid-phase micro-extraction gas chromatography coupled with mass spectrometry revealed that the triazole pesticides also changed the flower and fruit flavor component contents of the wines. This was attributed to changes in the yeast fermentation activity caused by the pesticide residues. The study reveals that triazole pesticides negatively impact on the volatile composition of wines with a potential undesirable effect on wine quality, underlining the desirability of stricter control by the food industry over pesticide residues in winemaking"
Keywords:		Fermentation Odorants/*analysis Pesticides/*pharmacology Saccharomyces cerevisiae Triazoles/*pharmacology Vitis/*chemistry/drug effects Volatile Organic Compounds/*analysis Wine/*analysis flavor components sensory analysis triazole pesticides wine;
Notes:		"MedlineXiao, Ouli Li, Minmin Chen, Jieyin Li, Ruixing Quan, Rui Zhang, Zezhou Kong, Zhiqiang Dai, Xiaofeng eng 31671942/National Natural Science Foundation of China/ Z191100001119121/Beijing Nova Program of Science and Technology/ Switzerland 2020/12/03 Molecules. 2020 Nov 28; 25(23):5596. doi: 10.3390/molecules25235596"