Investigating the factors driving concentrations of volatile thiols and their precursors in white wines: The impact of Botrytis cinerea and grape variety

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-03-03 DOI:10.1016/j.foodchem.2025.143551

Jennifer R. Muhl , Lisa I. Pilkington , Bruno Fedrizzi , Rebecca C. Deed

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Abstract

3-Sulfanylhexan-1-ol (3SH) and 3-sulfanylhexyl acetate (3SHA) are highly odiferous impact odorants in wines, imparting tropical aromas. Despite having a good understanding of how vintage, grape variety, region of production, and Botrytis cinerea infection affect the concentration of these volatile thiols, the influence of these factors on the concentrations of thiol precursors has not been comprehensively studied. Therefore, the concentrations of 3SH and 3SHA, and five precursors to 3SH, were quantitated for 40 commercial white wines, to explore how vintage, variety, region, and Botrytis cinerea infection, influence both thiol and precursor concentrations. The most impactful factors on wine thiol concentration were Botrytis and variety, although these factors influenced the thiols differently. 3SHA concentrations were also modulated, although less strongly, by vintage and region. However, only Botrytis and variety influenced precursor types and concentrations. Ultimately, variety was the most impactful factor in thiol and thiol precursor concentrations in the wines studied herein.

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研究白葡萄酒中挥发性硫醇及其前体物浓度的驱动因素：葡萄灰霉病和葡萄品种的影响

3-磺胺基己烷-1-醇（3SH）和3-磺胺基己酯乙酸酯（3SHA）是葡萄酒中高度不同的影响气味剂，赋予热带香气。尽管我们已经很好地了解了年份、葡萄品种、产区和葡萄灰霉病对这些挥发性硫醇浓度的影响，但这些因素对硫醇前体浓度的影响还没有得到全面的研究。因此，我们对40种商业白葡萄酒的3SH和3SHA浓度以及5种3SH前体进行了定量分析，以探索年份、品种、地区和葡萄孢杆菌感染对硫醇和前体浓度的影响。对葡萄酒硫醇含量影响最大的因素是葡萄孢菌和品种，但这些因素对硫醇含量的影响各不相同。3SHA浓度也受年份和地区的影响，尽管不那么强烈。然而，只有葡萄孢菌和品种影响前体类型和浓度。最终，品种是影响葡萄酒中硫醇和硫醇前体浓度的最重要因素。

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.