微生物群体结构和功能基因对臭豆腐中挥发性风味的分析
Aiguo Luo1,2,3, Lifang Liu1, Shengli Shi1,2,3
1Department of Biological Science and Technology Jinzhong University Jinzhong China.
Food science & nutrition
|December 1, 2025
概括
这项研究解读了臭豆腐味道的微生物和遗传基础,识别了像Pseudomonas这样的关键细菌及其对味道化合物合成的代谢途径.
科学领域:
- 食品微生物学 食品微生物学
- 转基因组学是指转基因组学.
- 发酵科学 发酵科学
背景情况:
- 臭豆腐独特的味道是由于发酵过程中的复杂微生物代谢.
- 微生物群落与风味化合物生成之间的遗传联系尚未完全理解.
研究的目的:
- 为了确定核心微生物种群和代谢基因,负责臭味豆腐的味道.
- 阐明传统臭豆腐发酵中的风味生物合成的分子机制.
主要方法:
- 发酵样品的元基因组测序 (Illumina NovaSeq 6000) 进行.
- 使用KEGG,eggNOG和CAZy数据库进行功能基因注释.
- 微生物社区结构和代谢途径的分析.
主要成果:
- 确定的主导属:伪 (74.3%),青杆菌 (14.4%),和肠杆菌 (5%).
- 伪人种在碳水化合物代谢和氨基酸降解中的关键是通过甘氨酸化酶和脱化酶.
- 检测到与调味化合物相关的特定基因,如二甲和3-甲基butan酸.
结论:
- 建立了一个微生物-基因-代谢物网络,是臭豆腐味道的基础.
- 提供了通过微生物工程优化发酵的见解,以增强风味配置.
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