Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation

Abstract Kombucha tea is a fermented tea that produced by acetic acid bacteria and yeast. In this study, the kombucha tea from white, green and black tea was studied for its microbial composition, chemical profile, and biological activities during 15-day fermentation period. HPLC analysis revealed k...

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Main Authors: Nitsanat Cheepchirasuk, Thida Kaewkod, Sureeporn Suriyaprom, Varachaya Intachaisri, Pornpimon Ngamsaard, Yingmanee Tragoolpua
Format: Article
Language:English
Published: Nature Portfolio 2025-06-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-03545-z
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author Nitsanat Cheepchirasuk
Thida Kaewkod
Sureeporn Suriyaprom
Varachaya Intachaisri
Pornpimon Ngamsaard
Yingmanee Tragoolpua
author_facet Nitsanat Cheepchirasuk
Thida Kaewkod
Sureeporn Suriyaprom
Varachaya Intachaisri
Pornpimon Ngamsaard
Yingmanee Tragoolpua
author_sort Nitsanat Cheepchirasuk
collection DOAJ
description Abstract Kombucha tea is a fermented tea that produced by acetic acid bacteria and yeast. In this study, the kombucha tea from white, green and black tea was studied for its microbial composition, chemical profile, and biological activities during 15-day fermentation period. HPLC analysis revealed key organic acids, including acetic, gluconic, and glucuronic acids in kombucha tea.  In this study, white tea kombucha showed the highest glucuronic acid content. Green tea kombucha demonstrated the highest antioxidant activity by ABTS and FRAP assays. Moreover, white tea kombucha exhibited the strongest DPPH scavenging activity and high phenolic content. Additionally, kombucha tea could inhibit the growth of pathogenic bacteria, including Escherichia coli, E. coli O157:H7, Salmonella Typhi, Shigella dysenteriae, and Vibrio cholerae. Furthermore, green tea kombucha significantly inhibited nitric oxide production on LPS-stimulated RAW264.7 cells and demonstrated the strongest anti-inflammatory effect. These findings highlight a potential of kombucha tea as a functional beverage with antioxidant, antibacterial, and anti-inflammatory properties.
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issn 2045-2322
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spelling doaj-art-3f569fd36db94bb59245be72d55e52982025-08-20T02:03:30ZengNature PortfolioScientific Reports2045-23222025-06-0115111910.1038/s41598-025-03545-zFunctional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammationNitsanat Cheepchirasuk0Thida Kaewkod1Sureeporn Suriyaprom2Varachaya Intachaisri3Pornpimon Ngamsaard4Yingmanee Tragoolpua5Doctor of Philosophy Program in Applied Microbiology (International Program), Faculty of Science, Chiang Mai UniversityDepartment of Biology, Faculty of Science, Chiang Mai UniversityDepartment of Biology, Faculty of Science, Chiang Mai UniversityDepartment of Biology, Faculty of Science, Chiang Mai UniversityDepartment of Biology, Faculty of Science, Chiang Mai UniversityDepartment of Biology, Faculty of Science, Chiang Mai UniversityAbstract Kombucha tea is a fermented tea that produced by acetic acid bacteria and yeast. In this study, the kombucha tea from white, green and black tea was studied for its microbial composition, chemical profile, and biological activities during 15-day fermentation period. HPLC analysis revealed key organic acids, including acetic, gluconic, and glucuronic acids in kombucha tea.  In this study, white tea kombucha showed the highest glucuronic acid content. Green tea kombucha demonstrated the highest antioxidant activity by ABTS and FRAP assays. Moreover, white tea kombucha exhibited the strongest DPPH scavenging activity and high phenolic content. Additionally, kombucha tea could inhibit the growth of pathogenic bacteria, including Escherichia coli, E. coli O157:H7, Salmonella Typhi, Shigella dysenteriae, and Vibrio cholerae. Furthermore, green tea kombucha significantly inhibited nitric oxide production on LPS-stimulated RAW264.7 cells and demonstrated the strongest anti-inflammatory effect. These findings highlight a potential of kombucha tea as a functional beverage with antioxidant, antibacterial, and anti-inflammatory properties.https://doi.org/10.1038/s41598-025-03545-zKombucha teaFermentationAntioxidationAnti-inflammatoryPathogenic bacteria
spellingShingle Nitsanat Cheepchirasuk
Thida Kaewkod
Sureeporn Suriyaprom
Varachaya Intachaisri
Pornpimon Ngamsaard
Yingmanee Tragoolpua
Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation
Scientific Reports
Kombucha tea
Fermentation
Antioxidation
Anti-inflammatory
Pathogenic bacteria
title Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation
title_full Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation
title_fullStr Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation
title_full_unstemmed Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation
title_short Functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria, free radicals and inflammation
title_sort functional metabolites and inhibitory efficacy of kombucha beverage on pathogenic bacteria free radicals and inflammation
topic Kombucha tea
Fermentation
Antioxidation
Anti-inflammatory
Pathogenic bacteria
url https://doi.org/10.1038/s41598-025-03545-z
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