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Kombucha Beverage from Green, Black and Rooibos Teas: A Comparative Study Looking at Microbiology, Chemistry and Antioxidant Activity

Open access
Gaggìa, Francesca, Baffoni, Loredana, Galiano, Michele, Nielsen, Dennis Sandris, Jakobsen, Rasmus Riemer, Castro-Mejía, Josue Leonardo, Bosi, Sara, Truzzi, Francesca, Musumeci, Federica, Dinelli, Giovanni, Di Gioia, Diana·2018·Nutrients
DOI 10.3390/nu11010001
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Abstract

Kombucha is usually obtained from the fermentation of black or green tea by a consortium of acetic acid bacteria and yeasts. In this study, kombucha was prepared from the same starter consortium using green and black teas as well as, for the first time, an infusion of rooibos leaves (Aspalathus linearis). Microbial diversity was analysed during fermentation both in the biofilm and in the corresponding kombuchas, using culture-dependent and -independent methods. Polyphenols, flavonoids, ethanol, and acids were quantified and anti-oxidant activities were monitored. All of the Kombuchas showed similarity in bacterial composition, with the dominance of Komagataeibacter spp. Beta diversity showed that the yeast community was significantly different among all tea substrates, between 7 and 14 days of fermentation and between biofilm and kombucha, indicating the influence of the substrate on the fermenting microbiota. Kombucha from rooibos has a low ethanol concentration (1.1 mg/mL), and a glucuronic acid amount that was comparable to black tea. Although antioxidant activity was higher in black and green kombucha compared to rooibos, the latter showed an important effect on the recovery of oxidative damage on fibroblast cell lines against oxidative stress. These results make rooibos leaves interesting for the preparation of a fermented beverage with health benefits.

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Metadata

Authors
Gaggìa, F., Baffoni, L., Galiano, M., Nielsen, D. S., Jakobsen, R. R., Castro-Mejía, J. L., Bosi, S., Truzzi, F., Musumeci, F., Dinelli, G., & Di Gioia, D.
Venue
Nutrients
Publisher
MDPI AG
Published
2018-12-20
Volume
11
Issue
1
Pages
1
ISSN
2072-6643 (ISSN-L)
DOI
10.3390/nu11010001
OpenAlex
W2903954635
Cited by
541
References
9
FWCI
63.82
Type
journal article
Language
en
Open access
gold
Licence
creativecommons.org/licenses/by/4.0/ (vor)
Funders
  • EU project FOODSTAR (GA 692276)
  • H2020 Food (GA 692276)

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CoChat. (2026). Citation check: Kombucha Beverage from Green, Black and Rooibos Teas: A Comparative Study Looking at Microbiology, Chemistry and Antioxidant Activity. https://app.cochat.ai/papers/10.3390/nu11010001
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Gaggìa, F., Baffoni, L., Galiano, M., Nielsen, D. S., Jakobsen, R. R., Castro-Mejía, J. L., Bosi, S., Truzzi, F., Musumeci, F., Dinelli, G., & Di Gioia, D. (2018). Kombucha Beverage from Green, Black and Rooibos Teas: A Comparative Study Looking at Microbiology, Chemistry and Antioxidant Activity. Nutrients. https://doi.org/10.3390/nu11010001

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