リズリングワインの揮発性多機能チオルの分子および感覚指紋
Emilio De Longhi1,2, Liang Chen1, Doris Rauhut2
1Université de Bordeaux, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France.
Journal of agricultural and food chemistry
|February 15, 2026
まとめ
この研究では,リースリングワインに寄与する重要な揮発性チオルを特定しました.
科学分野:
- ワイン科学とワイン化学
- アナリティカル・ケミストリー (Analytical Chemistry) とは
- 感覚科学とは,感覚科学である.
背景:
- 揮発性多機能チオールは,リースリングワインの香りにとって不可欠ですが,まだ十分に研究されていません.
- これらの化合物を理解することは,ワインの質を特徴づけ,潜在的に向上させるために不可欠です.
研究 の 目的:
- リズリングワインの揮発性チオルを分析および感覚的方法を使用してプロファイルする.
- 特定の香りプロファイルに責任を持つチオルを特定し,定量化します.
- 新たに特定されたチオルの匂い検出の値を決定する.
主な方法:
- 心臓切断型多次元ガス染色体質スペクトロメトリー/オルファクトメトリー (GC-MS/O) のスクリーニング.
- 超高性能液体染色学 四極軌道高解像度質量スペクトロメトリー (UHPLC Orbitrap HRMS) の識別と定量化.
- 匂い検知値と芳香の貢献を決定するために,モデルワインにおける感覚評価.
主要な成果:
- 4つの主要なチオールが特定されました:3-スルファニルヘキサン-1-オール,エチル3-スルファニルプロピオネート,エチル2-スルファニルプロピオネート,およびトランス-2-メチル-3-テトラヒドロフランチオール.
- UHPLC Orbitrap HRMSを使用して,5つの追加候補チオルを確認し,12のチオルを定量化しました.
- ヴィティス・ヴィニフェラワインで2つの新しいモノターペノイドチオール (1-p-メンテナ-8-チオールとトランス-p-メンテナ-3-one-8-チオール) が初めて検出されました.
- 新しいモノテルペノイドチオール (0.076 ng/Lと22.9 ng/L) の匂いの検出基準を決定した.
- "桃色"と"熱帯"のノートに,3-スルファニルヘプタン-1-オールと3-スルファニルヘプタン-1-オールの貢献を示した.
結論:
- この研究は,リースリングワインの揮発性チオールの包括的なプロフィールを提供します.
- 新型チオルを特定し,特に果実や熱帯の香りノートに与える感覚的影響を明らかにした.
- この発見は,リースリングの芳香の複雑性についての理解を深め,ワイン製造の実践に情報を与えることができます.
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