The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses
Polymicrobial co-fermentation is among the distinct character of high-temperature Daqu. However, fungal communities in the three types of high-temperature Daqu, namely, white high-temperature Daqu, black high-temperature Daqu, and yellow high-temperature Daqu, are yet to be characterized. In this st...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:ff201438b45b41db8dd54a8079b0bd0e2021-12-02T06:20:44ZThe Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses1664-302X10.3389/fmicb.2021.784651https://doaj.org/article/ff201438b45b41db8dd54a8079b0bd0e2021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.784651/fullhttps://doaj.org/toc/1664-302XPolymicrobial co-fermentation is among the distinct character of high-temperature Daqu. However, fungal communities in the three types of high-temperature Daqu, namely, white high-temperature Daqu, black high-temperature Daqu, and yellow high-temperature Daqu, are yet to be characterized. In this study, the fungal diversity, taste, and aroma profiles in the three types of high-temperature Daqu were investigated by Illumina MiSeq high-throughput sequencing, electronic tongue, and electronic nose, respectively. Ascomycota and Basidiomycota were detected as the absolute dominant fungal phylum in all types of high-temperature Daqu samples, whereas Thermomyces, Thermoascus, Aspergillus, Rasamsonia, Byssochlamys, and Trichomonascus were identified as the dominant fungal genera. The fungal communities of the three types of high-temperature Daqu differed significantly (p < 0.05), and Thermomyces, Thermoascus, and Monascus could serve as the biomarkers in white high-temperature Daqu, black high-temperature Daqu, and yellow high-temperature Daqu, respectively. The three types of high-temperature Daqu had an extremely significant difference (p < 0.01) in flavor: white high-temperature Daqu was characterized by sourness, bitterness, astringency, richness, methane, alcohols, ketones, nitrogen oxides, and sulfur organic compounds; black high-temperature Daqu was characterized by aftertaste-A, aftertaste-B, methane-aliph, hydrogen, and aromatic compounds; and yellow high-temperature Daqu was characterized by saltiness, umami, methane, alcohols, ketones, nitrogen oxides, and sulfur organic compounds. The fungal communities in the three types of high-temperature Daqu were significantly correlated with taste but not with aroma, and the aroma of high-temperature Daqu was mainly influenced by the dominant fungal genera including Trichomonascus, Aspergillus, Thermoascus, and Thermomyces. The result of the present study enriched and refined our knowledge of high-temperature Daqu, which had positive implications for the development of traditional brewing technique.Wenchao CaiWenchao CaiWenchao CaiYu’ang XueYu’ang XueYurong WangWenping WangNa ShuHuijun ZhaoFengxian TangFengxian TangXinquan YangXinquan YangZhuang GuoChunhui ShanChunhui ShanFrontiers Media S.A.articlehigh-temperature Daqusauce-flavor Baijiufungal diversityIllumina MiSeq high-throughput sequencingelectronic noseelectronic tongueMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021) |
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| topic |
high-temperature Daqu sauce-flavor Baijiu fungal diversity Illumina MiSeq high-throughput sequencing electronic nose electronic tongue Microbiology QR1-502 |
| spellingShingle |
high-temperature Daqu sauce-flavor Baijiu fungal diversity Illumina MiSeq high-throughput sequencing electronic nose electronic tongue Microbiology QR1-502 Wenchao Cai Wenchao Cai Wenchao Cai Yu’ang Xue Yu’ang Xue Yurong Wang Wenping Wang Na Shu Huijun Zhao Fengxian Tang Fengxian Tang Xinquan Yang Xinquan Yang Zhuang Guo Chunhui Shan Chunhui Shan The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses |
| description |
Polymicrobial co-fermentation is among the distinct character of high-temperature Daqu. However, fungal communities in the three types of high-temperature Daqu, namely, white high-temperature Daqu, black high-temperature Daqu, and yellow high-temperature Daqu, are yet to be characterized. In this study, the fungal diversity, taste, and aroma profiles in the three types of high-temperature Daqu were investigated by Illumina MiSeq high-throughput sequencing, electronic tongue, and electronic nose, respectively. Ascomycota and Basidiomycota were detected as the absolute dominant fungal phylum in all types of high-temperature Daqu samples, whereas Thermomyces, Thermoascus, Aspergillus, Rasamsonia, Byssochlamys, and Trichomonascus were identified as the dominant fungal genera. The fungal communities of the three types of high-temperature Daqu differed significantly (p < 0.05), and Thermomyces, Thermoascus, and Monascus could serve as the biomarkers in white high-temperature Daqu, black high-temperature Daqu, and yellow high-temperature Daqu, respectively. The three types of high-temperature Daqu had an extremely significant difference (p < 0.01) in flavor: white high-temperature Daqu was characterized by sourness, bitterness, astringency, richness, methane, alcohols, ketones, nitrogen oxides, and sulfur organic compounds; black high-temperature Daqu was characterized by aftertaste-A, aftertaste-B, methane-aliph, hydrogen, and aromatic compounds; and yellow high-temperature Daqu was characterized by saltiness, umami, methane, alcohols, ketones, nitrogen oxides, and sulfur organic compounds. The fungal communities in the three types of high-temperature Daqu were significantly correlated with taste but not with aroma, and the aroma of high-temperature Daqu was mainly influenced by the dominant fungal genera including Trichomonascus, Aspergillus, Thermoascus, and Thermomyces. The result of the present study enriched and refined our knowledge of high-temperature Daqu, which had positive implications for the development of traditional brewing technique. |
| format |
article |
| author |
Wenchao Cai Wenchao Cai Wenchao Cai Yu’ang Xue Yu’ang Xue Yurong Wang Wenping Wang Na Shu Huijun Zhao Fengxian Tang Fengxian Tang Xinquan Yang Xinquan Yang Zhuang Guo Chunhui Shan Chunhui Shan |
| author_facet |
Wenchao Cai Wenchao Cai Wenchao Cai Yu’ang Xue Yu’ang Xue Yurong Wang Wenping Wang Na Shu Huijun Zhao Fengxian Tang Fengxian Tang Xinquan Yang Xinquan Yang Zhuang Guo Chunhui Shan Chunhui Shan |
| author_sort |
Wenchao Cai |
| title |
The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses |
| title_short |
The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses |
| title_full |
The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses |
| title_fullStr |
The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses |
| title_full_unstemmed |
The Fungal Communities and Flavor Profiles in Different Types of High-Temperature Daqu as Revealed by High-Throughput Sequencing and Electronic Senses |
| title_sort |
fungal communities and flavor profiles in different types of high-temperature daqu as revealed by high-throughput sequencing and electronic senses |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/ff201438b45b41db8dd54a8079b0bd0e |
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