从智利葡萄中分离出的本地乳酸细菌的选和选择
Carla Vargas-Luna1, Liliana Godoy2, Sergio Benavides3
1Departamento de Ingeniería Química y Bioprocesos, Pontificia Universidad Católica de Chile, Santiago 6904411, Chile.
Foods (Basel, Switzerland)
|January 11, 2025
概括
这项研究探讨了来自智利葡萄的乳酸细菌用于低乳酸发酵起始培养. 莱维拉ctobacillus brevis BCV-46显示出最好的潜力,耐受乙醇,pH和SO2压力.
科学领域:
- 葡萄酒学 葡萄酒学 葡萄酒学
- 微生物学 微生物学
- 食品科学 食品科学 食品科学
背景情况:
- 智利葡萄含有多种乳酸细菌.
- 乳发酵 (MLF) 起始培养对葡萄酒质量至关重要.
- 识别强大的MLF菌株对于酒至关重要.
研究的目的:
- 研究智利葡萄中乳酸细菌的生物多样性.
- 识别和选潜在的劣乳酸发酵起始培养物.
- 评估在压力条件下选择菌株的性能.
主要方法:
- 乳酸细菌的分离和形态表征.
- 使用16S rRNA测序进行遗传鉴定.
- 查不良乳糖活性,糖代谢和耐压力 (乙醇,pH,SO2).
- 提拉胺生产和酸摄入量测定.
主要成果:
- 选择了23个分离物,被确定为Levilactobacillus brevis (65%) 和Leuconostoc mesenteroides (35%).
- 八个菌株表现出低糖代谢;三个菌株在10%乙醇合成介质中表现出具有竞争力的MLF.
- 莱维拉ctobacillus brevis BCV-46对联合乙醇,pH和SO2压力表现出优越的耐受性.
结论:
- 莱维拉克托巴西勒斯 (Levilactobacillus brevis) BCV-46 是一种有前途的候选物,可用于马洛乳性初始培养物.
- 该研究强调了智利葡萄微生物群在酒学应用中的潜力.
- 坚固的MLF菌株对于葡萄酒发酵和质量的一致性至关重要.
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