保护原产地名称Serra da Estrela奶酪的微生物学特征
Rui Rocha1, Nélson Couto2, Ricardo Pereira Pinto1
1CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347 Viana do Castelo, Portugal.
Foods (Basel, Switzerland)
|May 27, 2023
概括
这项研究更新了塞拉达埃斯特雷拉奶酪的微生物特征,这是葡萄牙传统的PDO产品. 乳酸细菌占主导地位,特定的物种与不同的生产阶段和奶酪特性有关.
科学领域:
- 食品微生物学 食品微生物学
- 乳制品科学 乳制品科学
- 被保护的原产地名称 (PDO) 产品 产品
背景情况:
- 塞拉达埃斯特雷拉奶酪是葡萄牙重要的PDO产品,具有悠久的历史.
- 以前的微生物表征已经过时,需要进行更新的分析.
- 了解微生物生态对于保持奶酪的质量和真实性至关重要.
研究的目的:
- 提供Serra da Estrela原产地注册名称的奶酪及其原材料的最新微生物特征.
- 确定关键的细菌物种及其在整个奶酪生产过程中的流行情况.
- 为了将微生物种群与奶酪制造和成熟的不同阶段相关联.
主要方法:
- 对牛奶,乳酪和奶酪基质中的乳酸细菌种群的分析.
- 使用殖民地形成单位 (CFU/g) 量化细菌数量.
- 对应分析以确定细菌物种和生产材料之间的关联.
主要成果:
- 在所有分析的Serra da Estrela奶酪中,乳酸细菌的数量超过了8.8 log CFU/g.
- 乳球菌和乳球菌在生产季节增加,而肠球菌减少.
- 像*L. paracasei*,*L. lactis*,*E. durans*,*E. faecium*和*L. mesenteroides*这样的特定物种在矩阵中始终被发现.
结论:
- 塞拉达埃斯特雷拉奶酪的微生物特征是乳酸细菌占主导地位.
- 细菌动态因生产季节而异,影响微生物组成.
- *L.casei*, *L.plantarum* 和 *L.curvatus* 似乎对奶酪的成熟和感官特性至关重要.
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