探索葡萄酵母的自然生物多样性,以选择适应气候变化的葡萄酒学特征的菌株
Joana P Guedes1, Tiago Vidal Cardoso1, Ticiana Fernandes1
1CBMA - Centre of Molecular and Environmental Biology/ARNET-Aquatic Research Network, University of Minho, Campus of Gualtar, 4710-057, Braga, Portugal.
Heliyon
|September 23, 2024
概括
这项研究探讨了本地Saccharomyces cerevisiae菌株,以改善气候变化挑战的葡萄酒质量. 这些精选的酵母菌株增强了高糖葡萄酒的发酵,提高了葡萄酒的可持续性和风味.
科学领域:
- 葡萄酒学 葡萄酒学 葡萄酒学
- 微生物学 微生物学
- 葡萄种植 葡萄种植 葡萄种植
背景情况:
- 葡萄酒生产面临气候变化挑战,包括气温上升和葡萄糖含量增加.
- 消费者对复杂风味,地区真实性和少量的添加剂的需求使酒复杂化.
- 葡萄糖含量较高会增加葡萄酒发酵期间微生物腐烂的风险.
研究的目的:
- 调查本土的Saccharomyces cerevisiae菌株在具有挑战性的条件下进行葡萄酒发酵.
- 描述未被充分研究的酵母菌株,以获得理想的酒特性和抗压能力.
- 确定合适的酵母候选物,用于发酵高糖葡萄酒,以提高葡萄酒的质量和可持续性.
主要方法:
- 从不同的环境中分离和特征原生Saccharomyces cerevisiae菌株.
- 评估的葡萄酒特性包括生长,副产品形成 (H2S,乙醇,酸),SO2耐药性和杀菌活性.
- 评估酵母对透应激,酸盐和杀菌剂的耐药性,将数据组织到生物库中进行生物信息分析.
主要成果:
- 编制了表型数据,生物信息分析根据特征对菌株进行了分组.
- 四个葡萄牙Saccharomyces cerevisiae分离物显示出发酵高糖葡萄酒酒的潜力.
- 确定了有前途的酵母候选物,有助于葡萄酒的质量和可持续性.
结论:
- 本土的Saccharomyces cerevisiae菌株为葡萄酒生产的挑战提供了可持续的解决方案.
- 精选的酵母菌株可以改善高糖的发酵,解决气候变化的影响.
- 这项研究支持提高葡萄酒质量,区域真实性和生产可持续性.
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