Characterizing Relationship of Microbial Diversity and Metabolite in Sichuan Xiaoqu

This study provides a scientific perspective of the uniformity and stability of Xiaoqu jiu and might aid in controlling its manufacturing process. Introduction As a conventional solid fermentation of Baijiu, Xiaoqu jiu is a very popular Chinese liquor in Asia. Xiaoqu jiu can be classified into three main types: Qing-xiang; Yu ping shao; and Guilin-sanhua jiu. Of these, Qing-xiang (light in flavor) Xiaoqu jiu is different from Daqu jiu such as Jiang-, Nong- and Qing-xiang Baijiu, although the main materials are the same, which includes grain sorghum (Sorghum bicolor L. Moench) and rice hulls (Su et al., 2010). The technology is characterized as follows: a short fermentation period, provides a higher yield, while less Xiaoqu is used during the starter process, in contrast to the production technology used for Daqu jiu (Gou et al., 2015). The Xiaoqu involved in various types, relies on raw materials and production technology, where rice and rice bran are the main raw materials. Sichuan Xiaoqu, a typical Xiaoqu, often adds Muqu, matured Xiaoqu produced during the last year. Some Chinese herbs also have a long history of being added to this process (Zheng and Han, 2016). The production of Xiaoqu and Xiaoqu jiu are both carried out in an open environment, while pure Aspergillus culture is inoculated into bran when the process starts for Fuqu (Zheng and Han, 2016). Therefore, the microbial community diversity depends on the process parameter and region niches featured, endo...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research

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