在木果和叶子的kombucha发酵过程中,物理化学,细菌和挥发性资料的动态变化
Chunyu Xu1, Zhongna Yu2, Shichu Zhou3
1College of Grassland Science, Qingdao Agricultural University, Qingdao 266109, Shandong, China; College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China.
Food research international (Ottawa, Ont.)
|August 12, 2025
概括
这项研究跟踪了kombucha发酵,使用12天的木果和叶子进行了跟踪. 确定了关键的细菌物种,挥发性化合物和感觉特征,为优化生产提供了洞察力.
科学领域:
- 发酵科学是一种发酵科学.
- 微生物学 微生物学
- 食品化学 食品化学 食品化学
背景情况:
- 康布查,一种发酵茶,因其潜在的健康益处而越来越受欢迎.
- 了解发酵过程中的微生物和化学动态对于质量控制和优化至关重要.
- 基于木的kombucha呈现了一种具有独特潜力的新基质.
研究的目的:
- 调查kombucha的物理化学性质,细菌群落,挥发性化合物和感觉特征的动态变化,这些变化来自木果和叶子.
- 为了将这些变化与由传统的黑茶和绿茶制成的康布查进行比较.
- 为了确定影响kombucha特征的关键微生物和化学标记.
主要方法:
- 在12天的时间里,从木果 (MFK),木叶 (MLK),黑茶 (BTK) 和绿茶 (GTK) 制作康布查.
- 总黄,多和抗氧化剂活性的分析.
- 16S rRNA测序用于细菌社区概况.
- 气色谱-质谱 (GC-MS) 用于挥发性化合物分析.
- 电子鼻子 (E-nose) 和电子舌头 (E-tongue) 用于感官分析.
主要成果:
- 生物活性化合物和抗氧化剂活性在第6天左右达到峰值,然后下降.
- 科玛格菌 (Komagataeibacter rhaeticus) 和科玛格菌 (Komagataeibacter saccharivorans) 是占主导地位的细菌,它们在基质上有着不同的丰度模式.
- 乙酸,乙醇和乙酸乙烯是主要的挥发性化合物,根据基质有很大差异.
- 与其他人相比,木叶kombucha的乙醇含量较低,但乙酸和乙烯酸含量较高.
- 感官分析表明酸度是主要的特征,特定化合物和微生物物种之间的相关性.
结论:
- 与传统茶相比,以木为基础的kombucha表现出独特的发酵动态.
- 特定的细菌物种和挥发性化合物与不同的木基质有关.
- 这项研究为优化木kombucha生产和理解发酵相互作用提供了有价值的数据.
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