清晰定义的本土初始剂对微生物群落和原牛奶技术性质在回归实践期间的影响
Christel Couderc1, Valérie Laroute2, Nathalie Aubry2
1Occi'Food, Ecole d'Ingénieurs de Purpan, Université de Toulouse, Toulouse, France.
Food microbiology
|February 21, 2026
概括
在传统奶酪制造中使用已定义的土著初始培养物,使微生物群落稳定,并确保持续的酸化. 这种方法提高了发酵控制和产品质量,支持传统的奶酪制造实践.
科学领域:
- 乳制品微生物学 乳制品微生物学
- 食品科学 食品科学 食品科学
- 发酵技术的发酵技术
背景情况:
- 背靠背是一种传统的奶酪制造方法,使用前批次的乳清作为起始培养.
- 化失败可能发生在传统的回落中,导致经济损失.
- 工业启动器通常用于克服这些失败.
研究的目的:
- 调查定义的本土初始培养在回落期间对生牛奶的影响.
- 在一个月内分析连续的亚种的微生物组成和技术特征.
- 为了比较带有和没有添加本土启动剂的回落.
主要方法:
- 在回落过程中监测原牛奶的微生物组成和技术特性.
- 使用一个明确的土著起始文化.
- 在一个月的时间内分析连续的亚种,有或没有初始添加.
主要成果:
- 土著的初始培养保持稳定,并驱动同乳酸发酵.
- 仅生牛奶就显示了最初的多样性,但与乳球菌乳糖的优势稳定.
- 添加本土的起始剂迅速建立了L. lactis的主导地位和符合Rocamadour PDO要求的一致酸化.
- 添加初始剂减少了细菌组成的变异性,并影响了亚主导种群.
结论:
- 本土的初始培养促进了稳定的同乳酸发酵和在回落过程中持续的酸化.
- 本土的初级品种和生牛奶植物之间的共存是可能的,为生产者提供了一个有前途的选择.
- 这种方法加强了奶酪产品与它们的微生物领土之间的联系.
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