数字农科院2.0

Metagenomics and volatile metabolomics reveal microbial succession and its correlations with fruity flavor volatile compounds during Mianhua industrial processing

文献类型： 外文期刊

作者： Song, Qiaozhi;Li, Jiaxin;Liu, Yu;Li, Wen;Li, Ming;Zhang, Bo;Guo, Boli

作者机构：

关键词： Mianhua;Core microbes;Volatile compounds;Metabolome-microbiome correlation;Characteristic flavor;Fruity ester

期刊名称： FOOD CHEMISTRY-X

ISSN： 2590-1575

年卷期： 2025 年 33 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Mianhua, a traditional fermentation-type staple food popular in northern China, undergoes dynamic microbial and volatile compound changes during industrial processing. 848 volatile compounds were identified using volatile metabolomics dominated by esters (18.51 %), notably hexanoic acid ethyl ester and octanoic acid ethyl ester, which confer fruity flavors. Metagenomics analysis revealed Proteus (25.93 %), Fructilactobacillus (16.63 %), Lactobacillus (10.16 %) and Companilactobacillus (7.14 %) as dominant genera. Mixing with traditional starters was critical for flavor development, driven by microbial succession and synergistic interactions between Lactobacillaceae (e.g., Fructilactobacillus sanfranciscensis and Lactobacillus helveticus) and Kazachstania during fermentation. Notably, F. sanfranciscensis and L. helveticus were significantly correlated with the formation of key esters with fruity characteristics, elucidating their roles in substrate conversion via carbohydrate metabolism and the esterification pathways. This study clarifies the microbial contributions to fruity flavor and provides insights into volatile-microbiota correlations, laying a foundation for future flavor-oriented research and industrial applications of microbiota regulation in Mianhua production.

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