dati FAIR: Food Res. Int. 157 (2022) 111404 (https://doi.org/10.1016/j.foodres.2022.111404)

Thanks to their low odor detection thresholds, free varietal thiols (VTs) play a key role in the primary aroma of wines, to which they confer an intense scent reminiscent of box tree, grapefruit, citrus fruits, passionfruit and cat urine odor. In this research an optimized liquid chromatography – tandem mass spectrometry (LC-MS/MS) method was validated and used for the quantification of 4-methyl-4-sulfanylpentan-2-one (4-MSP), 3-sulfanylhexan-1-ol (3-SH), 3-sulfanylhexyl acetate (3-SHA) and ethyl 3-sulfanylpropionate (E3SP) in 246 samples (vintage 2019) representative of 18 monovarietal Italian white wines.

游离品种硫醇（free varietal thiols, VTs）凭借极低的气味检测阈值，在葡萄酒的初级香气中发挥关键作用，可赋予葡萄酒浓郁的香气特征，其气味近似黄杨、柚子、柑橘类水果、西番莲果以及猫尿气息。本研究对一种优化后的液相色谱-串联质谱（liquid chromatography – tandem mass spectrometry, LC-MS/MS）方法进行了方法学验证，并将其用于对246个2019年份样品中4-甲基-4-巯基戊-2-酮（4-methyl-4-sulfanylpentan-2-one, 4-MSP）、3-巯基己-1-醇（3-sulfanylhexan-1-ol, 3-SH）、3-巯基己基乙酸酯（3-sulfanylhexyl acetate, 3-SHA）以及3-巯基丙酸乙酯（ethyl 3-sulfanylpropionate, E3SP）的定量分析，这些样品涵盖了18种具有代表性的意大利单一品种白葡萄酒。