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Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Industrial Water Treatment is the property of CNOOC Tianjin Chemical Research & Design Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this study, we aimed to explore the effect of anaerobic treatment on the contents and functions of bioactive components such as γ-aminobutyric acid (GABA) in yellow tea and to analyze the mechanism by which anaerobic treatment promotes GABA enrichment using metabolomics. We also analyzed the changes in related metabolism pathways. The results showed that the content of GABA in yellow tea was increased to 3.3 mg/g after anaerobic treatment, and the contents of the upstream and downstream amino acids related to GABA were changed correspondingly. Moreover, anaerobic treatment significantly increased the contents of total phenolics and total flavonoids in yellow tea. In vitro bioactivity evaluation showed that anaerobic treatment improved the free radical scavenging capacity, total antioxidant activity and inhibitory effect on the formation of glycosylation products of yellow tea, but had little effect on the ability of yellow tea to inhibit starch digestion enzymes. A total of 218 differential metabolites between fresh and GABA-rich tea, including amino acids, organic acids, flavonoids, nucleotides, and sugars. Pathway enrichment analysis demonstrated that the amino acid biosynthesis, tryptophan metabolism, flavonoid biosynthesis, and butyrate metabolism pathways were significantly regulated. Anaerobic treatment could regulate the GABA content in yellow tea by affecting the L-glutamate and succinic semialdehyde pathways. This study can provide a reference for the research and development of GABA-rich tea.

Copyright of Journal of Tea Science is the property of Journal of Tea Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of the Chinese Society of Animal Science is the property of Chinese Society of Animal Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)