来自有机葡萄园的非Saccharomyces酵母作为自发发酵剂
Lorena López-Enríquez1, Josefina Vila-Crespo1, José Manuel Rodríguez-Nogales2
1Microbiology Department, Higher Technical School of Agrarian Engineering of Palencia, University of Valladolid, Av. Madrid 50, 34004 Palencia, Spain.
Foods (Basel, Switzerland)
|October 14, 2023
概括
非Saccharomyces酵母为葡萄酒做出了贡献.
科学领域:
- 葡萄酒学和微生物学
- 专注于葡萄酒发酵和酵母表征.
背景情况:
- 非Saccharomyces酵母对葡萄酒的芳香复杂性至关重要.
- 对有机Verdejo葡萄的自发发酵进行了酵母多样性的研究.
研究的目的:
- 从Verdejo葡萄发酵中分离和描述非Saccharomyces酵母.
- 评估这些酵母在酒中的生物技术潜力.
主要方法:
- 从自发发酵中分离484种酵母菌株.
- 对非Saccharomyces酵母的分子鉴定.
- 酶活性 (β-葡萄糖酶,蛋白酶,β-酶) 和发酵功率的分析.
主要成果:
- 11%的分离物被确定为非Saccharomyces物种,包括Hanseniaspora,Pichia,Torulaspora delbrueckii和Wickerhamomyces anomalus.
- *W. anomalus* 在葡萄园,年份和发酵阶段普遍存在.
- 几种菌株表现出显著的β-葡萄糖酶,蛋白酶和β-酶活性,这对于香气释放和葡萄酒质量至关重要. *T.delbrueckii*表现出高的β-酶活性和发酵能力.
结论:
- 非Saccharomyces酵母,特别是W. anomalus和T. delbrueckii,在Verdejo葡萄酒生产中具有重要的生物技术潜力.
- 发现的酶活性有助于品种香味释放和工艺改进.
- 保持微生物多样性是生产独特区域葡萄酒的关键.
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