Precipitation and temperature drive microbial community changes affecting flavor quality of Nongxiangxing Daqu
文献类型： 外文期刊
作者： Guan, Tongwei 1 ; Wei, Xinyue 2 ; Qiu, Xianping 3 ; Liu, Ying 1 ; Yu, Jianshen 3 ; Hou, Rui 2 ; Liu, Maoke 4 ; Mao, Yichen 5 ; Liu, Qingru 1 ; Tian, Lei 1 ; He, Zongjun 6 ; Xiang, Shuangquan 7 ;
作者机构： 1.Xihua Univ, Coll Food & Biol Engn, Food Microbiol Key Lab Sichuan Prov, Chengdu 610039, Peoples R China
2.Sichuan Mianzhu Jiannanchun Liquor Co Ltd, Mianzhu 618200, Peoples R China
3.Sichuan Quanxing Liquor Co Ltd, Chengdu 610000, Peoples R China
4.Sichuan Acad Agr Sci, Inst Rice & Sorghum Sci, Deyang 618000, Peoples R China
5.Xinjiang Kaiduhe Liquor Co Ltd, Hejing 841302, Peoples R China
6.Sichuan Tujiu Liquor Co Ltd, Nanchong 637919, Peoples R China
7.Yibin Jinxilai Liquor Co Ltd, Yibin 644002, Peoples R China
关键词： Nongxiangxing Daqu; Different seasonal scales; Microbial community; Volatile flavor compounds; Metabolites
期刊名称：FOOD CHEMISTRY-X （ 影响因子：8.2； 五年影响因子：8.2 ）
ISSN： 2590-1575
年卷期： 2024 年 24 卷
页码：
收录情况： SCI
摘要： Nongxiangxing Baijiu is the most famous Baijiu flavor in China, and its characteristic style is closely related to Nongxiangxing Daqu used in fermentation. However, there are few reports about the difference of Daqu quality between seasonal variations. In this study, precipitation and temperature drove changes in microbial communities that resulted in differences in the flavor of Daqu produced in different seasons. For example, the average daily temperature in summer was as high as 27.29 +/- 2.24 degrees C, which was significantly higher than other seasons (p < 0.01). Bacillus was abundant in the Daqu produced in this season, while tetramethylpyrazine flavor was more prominent, up to 1556.95 +/- 153.92 mu g/kg. Metabolomics studies identified major pathways associated with the weak flavor of spring_Daqu. In addition, LEFSe analysis revealed the marked microorganisms in different seasons. These results revealed the differences in seasonal Daqu, thus contributing to the scientific and rational use of Daqu.
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