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Preparation of High-Quality Fermented Fish Product
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揭示了发酵大豆糊中关键风味的形成机制
Yue Xiang1, Binbin Zhou2, Chunyan Jiang3
1School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Chengdu 610039, China.
Food research international (Ottawa, Ont.)
|January 15, 2024
概括
发酵大豆 (Pixian Douban) 的风味形成依赖于特定的微生物,如Staphylococcus gallinarum和Aspergillus flavus. 了解这些微生物群落和新陈代谢途径是改善这种受欢迎的中国香料的关键.
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.
- 生物化学 生物化学
背景情况:
- 皮杜班 (PXDB) 是一个受欢迎的中国调味品,以其独特的风味而闻名.
- 宽豆发酵 (Meju) 对于开发PXDB特有的风味特征至关重要.
- 了解发酵过程中的微生物生态和代谢过程对于质量控制和生产优化至关重要.
研究的目的:
- 分析PXDB中的关键风味化合物.
- 使用元基因组技术研究大豆发酵过程中的微生物多样性.
- 探索参与风味形成的主要代谢途径.
主要方法:
- 关键风味物质的定性和定量分析.
- 超基因组测序以评估微生物社区结构.
- 基格 (KEGG) 路径丰富分析,以确定代谢路径.
- 酵素和相应的微生物参与风味生产的注释.
主要成果:
- 葡萄球菌 (39.13%) 和乳酸菌 (13.76%) 是主要的细菌; Aspergillus flavus (3.02%) 是最丰富的真菌.
- 碳水化合物和氨基酸代谢被确定为主要的代谢途径.
- 葡萄糖酸酸酶和葡萄糖酸转移酶基因是最丰富的酶基因 (>70%).
- 标注了113种与味道相关的酶和39种相应的微生物,其中几种细菌和真菌发挥了关键作用.
结论:
- 这项研究阐明了发酵大豆中关键风味的形成机制.
- 确定了关键的微生物和代谢途径,为工业PXDB生产提供了洞察力.
- 结果可以指导策略,以提高PXDB产品质量和风味的一致性.
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