在起泡葡萄酒发酵中两种花酵母的比较蛋白质组学:第一个方法
Juan C García-García1, Teresa García-Martínez1, Juan J Román-Camacho1
1Department of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence ceiA3, University of Córdoba, 14014 Córdoba, Spain.
Foods (Basel, Switzerland)
|January 25, 2025
概括
这项研究比较了两种Saccharomyces cerevisiae菌株,用于生产起泡葡萄酒. 与商业G1菌株相比,新的N62花酵母菌株表现出优异的发酵性能和甘油生产,为更多的葡萄酒提供了更多的葡萄酒特征.
科学领域:
- 葡萄酒学 葡萄酒学 葡萄酒学
- 微生物学 微生物学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 传统的泡葡萄酒生产依赖于有限的商业酵母菌株,从而使葡萄酒具有统一的特点.
- 提高酵母多样性对于开发具有独特感官特征的高品质起泡葡萄酒至关重要.
研究的目的:
- 为了比较一个商业花酵母菌株 (G1) 和一个新型菌株 (N62) 的蛋白质组概况和发酵行为.
- 评估N62在生产高品质起泡葡萄酒方面的潜力,重点关注其独特的特征,如花和β-葡萄糖酶活性.
主要方法:
- 在起泡葡萄酒发酵过程中对两种Saccharomyces cerevisiae菌株 (G1和N62) 的蛋白质组分析进行比较.
- 监测关键的发酵参数,包括压力,生长,活力,糖醇含量和挥发性酸度.
主要成果:
- 与G1相比,N62菌株表现出更快的压力发育,更高的生长,活力,糖醇和挥发性酸度.
- 菌株G1达到更高的乙醇含量,但表现出较低的生长和生存能力.
- 蛋白质组分析揭示了不同的蛋白质表达模式,N62显示了参与蛋白质合成,甘油和酸盐合成的蛋白质的丰度较高,而G1显示了乙醇生产和细胞壁相关蛋白质的丰度较高,以及与自相关的蛋白质.
结论:
- 新鲜的花酵母菌株N62与商业G1菌株相比,具有明显的发酵动力学和代谢特征.
- N62的特点表明它有可能生产复杂多样化的泡葡萄酒,从而为酒领域的创新做出贡献.
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