在杜奇巴发酵过程中,细菌群落和挥发性化合物之间的动态相关性
Yurou Yang1, Panpan Yang1, Anyan Wen1
1School of Liquor and Food Engineering Guizhou University Guiyang China.
Food science & nutrition
|April 8, 2025
概括
这项研究揭示了Douchiba发酵过程中细菌和挥发性化合物的动态变化. 细菌和葡萄球菌等关键品种影响特定的风味化合物,有助于质量控制.
科学领域:
- 食品科学与技术 食品科学与技术
- 微生物学 微生物学
- 分析化学 分析化学
背景情况:
- 杜奇巴是来自中国贵州的传统发酵大豆产品.
- 它的生产过程中微生物和挥发性化合物的动态并未得到充分记录.
- 了解这些变化对于控制风味和质量至关重要.
研究的目的:
- 在杜奇巴发酵过程中调查细菌群体和挥发性化合物概况.
- 分析特定微生物和风味化合物之间的相关性.
- 为改善杜奇巴的风味质量提供科学基础.
主要方法:
- 高通量测序用于细菌群体分析.
- 头部空间固态微提取和气色谱-质谱 (HS-SPME-GC-MS) 用于挥发性化合物识别.
- 斯皮尔曼的相关性分析将微生物群落与挥发性化合物联系起来.
主要成果:
- 细菌的多样性和均性在发酵过程中增加,主要的属包括Bacillus,Staphylococcus,Tetragenococcus,Loigolactobacillus和Virgibacillus.
- 鉴定了134种挥发性化合物,其中子,酒精,Pyrazines和酸在不同阶段是突出的.
- 鉴定出了2,3,5-trimethylpyrazine,3-methyl-1-butanol和indole等特有的挥发性物质,这些物质有助于杜奇巴独特的风味.
结论:
- 特定的细菌系,特别是细菌和葡萄球菌,与关键的风味贡献的挥发性化合物有显著的相关性.
- 这些相关性提供了对杜奇巴特有的气味微生物基础的见解.
- 这些发现为优化杜奇巴发酵和确保产品质量的一致性提供了理论基础.
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