通过以基因组为中心的转录基因组学揭示了doenjang-meju的发酵代谢特征
Dong Min Han1, Ju Hye Baek1, Dae Gyu Choi1
1Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.
Food chemistry: X
|August 14, 2024
概括
这项研究揭示了Doenjang-Meju发酵过程中的微生物动态,使用基因组为中心的转录基因组学. 关键的细菌和真菌调节营养素的分解,影响了这种传统的韩国大豆糊的风味发展.
科学领域:
- 微生物学 微生物学
- 食品科学 食品科学 食品科学
- 转基因组学是指转基因组学.
背景情况:
- 登梅朱是韩国传统的发酵大豆,对于登糊的生产至关重要.
- 了解发酵过程中复杂的微生物相互作用和代谢活动对于质量控制和优化至关重要.
研究的目的:
- 为了研究45天内多昂jang-meju的动态发酵特征.
- 阐明关键微生物群落在各种化合物的降解和合成中的作用.
- 应用基因组为中心的元转录学来对发酵过程进行全面的分析.
主要方法:
- 用基因组为中心的转录基因组学分析了45天的微生物基因表达.
- 甲基因组分析确定了主要的微生物物种.
- 隔离的关键微生物被基因组测序以进行进一步分析.
主要成果:
- pH值的变化与不同的细菌和真菌生长阶段相关.
- 发生了多糖和脂质降解,氨基酸,自由糖和有机酸的增加.
- 甲基转录组分析显示,10天后,微生物主导地位从细菌 (Bacillus,Enterococcus) 转变为真菌 (Aspergillus).
- 阿斯伯吉卢和细菌是多糖,脂质和氨基酸代谢的关键,而菌对最初的有机酸生产有贡献.
结论:
- 杜恩梅胡的发酵涉及微生物活动的动态顺序,细菌和真菌有着不同的作用.
- 甲基转录组学为整个发酵过程中占主导地位的微生物的代谢贡献提供了深入的见解.
- 这项研究增强了我们对韩国传统发酵大豆产品特有的风味和质地背后的生物化学转变的理解.
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