来自不同品种的微生物群落形成发酵果汁的挥发性配置,同时保持品种特征
María Laura Raymond Eder1,2, Laura Fariña3,4, Francisco Carrau3
1Laboratorio de Genética y Biología Celular y Molecular, Departamento de Farmacología Otto Orsingher, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Frontiers in fungal biology
|October 6, 2025
概括
微生物群落对葡萄酒产生重大影响.
科学领域:
- 葡萄酒学 葡萄酒学 葡萄酒学
- 微生物学 微生物学
- 食品化学 食品化学
背景情况:
- 葡萄酒的独特身份源于葡萄品种的特点和发酵过程中的微生物相互作用.
- 葡萄衍生挥发性化合物与微生物代谢物对葡萄酒品种认同的相对贡献尚未完全理解.
研究的目的:
- 研究不同微生物群落如何影响伊莎贝拉 (Vitis labrusca L.) 葡萄汁在早期发酵阶段的挥发性特征.
- 确定微生物联盟和葡萄品种原产地在多大程度上影响最终发酵果汁的身份.
主要方法:
- 伊莎贝拉葡萄汁的发酵使用来自伊莎贝拉 (同源) 和马尔贝克 (Vitis vinifera L.,异源) 葡萄的本地微生物群体.
- 在早期发酵阶段使用气相色谱质谱法 (GC-MS) 进行挥发性化合物概况的表征.
- 在两种发酵类型中确定主导的酵母物种 (例如,汉斯尼亚斯波拉卵巢,汉斯尼亚斯波拉,Saccharomycodes bacillaris).
主要成果:
- 来自V. labrusca L.和V. vinifera L.的微生物启动剂显著改变了发酵的伊莎贝拉葡萄汁的挥发性概况.
- 尽管有微生物的影响,但发酵果汁保留了它们原有的葡萄品种的特征,这表明品种身份持久.
- 主导的酵母物种在伊莎贝拉葡萄汁的同类和异质发酵中一致.
结论:
- 这项研究表明,不同的Vitis特异性微生物群落可以调节挥发性特征,而不会抹去品种特征.
- 这项研究强调了一种实验方法,用于剖析葡萄品种和微生物群在塑造葡萄酒特性的相互作用.
- 微生物联盟在挥发性化合物形成中发挥着至关重要的作用,但葡萄的内在品种特征仍然是葡萄的标识的关键决定因素.
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