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Shaping the Bioactive Properties of Kombucha Drinks by Using Raw Materials Alternative to Tea
Akshay Chandran1, Joanna Wyka2, Gloria-Renate Klein3
1Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland.
Molecules (Basel, Switzerland)
|April 14, 2026
Summary
Exploring non-tea kombucha alternatives reveals diverse functional benefits. Substrate choice significantly impacts microbial communities, metabolite profiles, and bioactivity, offering avenues for enhanced health properties.
Area of Science:
- Food Science and Technology
- Microbiology
- Nutritional Biochemistry
Background:
- Kombucha, traditionally made from *Camellia sinensis*, is being explored with alternative substrates to diversify its properties.
- Non-tea ingredients are investigated for their potential to enhance kombucha's functional and microbial characteristics.
- The period between 2020 and 2025 has seen increased research into these alternative substrates.
Purpose of the Study:
- To review and synthesize evidence on how non-tea substrates affect kombucha's microbial ecology, metabolite composition, and bioactivity.
- To analyze the impact of various substrates like fruits, vegetables, herbs, algae, cereals, dairy, and by-products on kombucha.
- To evaluate the reported antioxidant, anti-inflammatory, metabolic, probiotic, and dermatological effects.
Main Methods:
- A semi-systematic literature search was conducted across major scientific databases (PubMed, Scopus, Web of Science).
- Studies published between 2020-2025 focusing on alternative substrates for kombucha fermentation were included.
- Data on substrate type, fermentation conditions, SCOBY characteristics, analytical methods, and functional outcomes were extracted and analyzed.
Main Results:
- Fermentation generally increases total phenolic content and antioxidant capacity, influenced by substrate and duration.
- Fruit and hibiscus substrates boost anthocyanin-related antioxidant and anti-inflammatory activities.
- Vegetable, cereal, algal, and by-product substrates provide unique compounds like phenolic acids, β-glucans, pigments, and peptides, impacting metabolic health and waste valorization.
Conclusions:
- Alternative substrates offer diverse bioactive compounds and functional benefits for kombucha, but outcomes vary significantly.
- Inter-study variability, limited in vivo validation, and lack of standardized protocols hinder practical application.
- SCOBY microbial variability is a key factor influencing fermentation consistency and functional outcomes, requiring further standardization.
Keywords:
alternative substratesantioxidant activitybioactive compoundskombuchametabolic healthwaste valorizationMore Related Videos
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