« Previous AbstractOrgan-specific transcriptome analysis reveals differential gene expression in different castes under natural conditions in Apis cerana    Next AbstractSilencing threonine deaminase and JAR4 in Nicotiana attenuata impairs jasmonic acid-isoleucine-mediated defenses against Manduca sexta »

Food Res Int

Title:		"Unraveling the microbial compositions, metabolic functions, and antibacterial properties of Huangshui, a byproduct of Baijiu fermentation"
Author(s):		Kang J; Sun Y; Huang X; Ye L; Chen Y; Chen X; Zheng X; Han BZ;
Address:		"Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. Nutrition & Health Research Institute, COFCO Corporation, Beijing 102209 China. Jiugui Liquor Co., Ltd, Hunan, China. Nutrition & Health Research Institute, COFCO Corporation, Beijing 102209 China. Electronic address: zhengxiaowei@cofco.com. Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. Electronic address: hbz@cau.edu.cn"
Journal Title:		Food Res Int
Year:		2022
Volume:		20220430
Issue:
Page Number:		111320 -
DOI:		10.1016/j.foodres.2022.111320
ISSN/ISBN:		1873-7145 (Electronic) 0963-9969 (Linking)
Abstract:		"Huangshui (HS) is a byproduct of Chinese Baijiu production that has tremendous potential to become a high-value product in the food industry. This study comprehensively analyzed the commonalities and differences in physicochemical properties, microbial structures, metabolomes, flavor profiles, and antibacterial properties among sources of HS. The HS samples were extracted from three different pits in three different workshops within an industrial Baijiu distillery. Lactobacillus was the dominant genus of bacteria in all of them, while Kazachstania, Aspergillus, and Pichia were the dominant genera of fungi. A total of 45 volatile compounds, including ethyl hexanoate, hexanoic acid, and 1-butanol, were detected in the HS by headspace solid-phase microextraction coupled with gas chromatography mass spectrometry, suggesting HS could be used to flavor liquor. Untargeted metabolomic analysis yielded 224 nonvolatile metabolites that were common in all HS samples. These metabolites included organic acids, carbohydrates, benzenoids, nucleic acids, and fatty acids, which are mainly involved in amino acid and sugar metabolism. While the compositions of the microbiome and metabolome among HS samples were affected by workshop factors, there were essentially no differences in the bactericidal properties of the HS samples among workshops. HS exhibited potent antibacterial activities against Escherichia coli and Staphylococcus aureus, and HS was effective in inactivating mature biofilms formed on polystyrene microplates, as confirmed by scanning electron micrographs. Our results provided a theoretical basis to increase the economic value of HS for applications in the food industry"
Keywords:		Anti-Bacterial Agents/analysis/pharmacology Fermentation Gas Chromatography-Mass Spectrometry/methods Solid Phase Microextraction/methods *Volatile Organic Compounds/analysis Antibacterial activities Baijiu By-products Gc-tof-ms Huangshui Microbiota;
Notes:		"MedlineKang, Jiamu Sun, Yuting Huang, Xiaoning Ye, Li Chen, Yuhong Chen, Xiaoxue Zheng, Xiaowei Han, Bei-Zhong eng Research Support, Non-U.S. Gov't Canada 2022/06/29 Food Res Int. 2022 Jul; 157:111320. doi: 10.1016/j.foodres.2022.111320. Epub 2022 Apr 30"