Kombucha in human randomised trials: a clinical literature review for formulators
Formulator’s summary: Fermented Black Tea (Camellia sinensis) Kombucha Powder is listed at a 0.2% to 6% use direction for drinks, smoothies and dry blends. Solubility and dispersion should be tested in the intended base; the product page notes powder may clump with heat or moisture and texture can vary. The catalogue powder’s trial comparability should be assessed against each study preparation.
Quick facts for formulators
- Catalogue form: Fermented Black Tea (Camellia sinensis) Kombucha Powder.
- Use direction: 0.2% to 6%, depending on the formulation, as stated on the product page.
- Dispersion: the product page notes that powder texture may vary and that the powder may clump with heat or moisture; test dispersion in the intended base.
- Colour and taste: the product page states these may vary from batch to batch.
- Storage: 24 months in the original sealed packaging below 25°C and relative humidity below 65%.
Human trial records listed by PubMed ID
| PubMed ID | Record title and journal | Trial design and population |
|---|---|---|
| 39339787 | “Green Tea Kombucha Impacts Inflammation and Salivary Microbiota in Individuals with Excess Body Weight: A Randomized Controlled Trial.” Nutrients, 2024. PubMed record. | Randomised controlled trial of green-tea kombucha in individuals with excess body weight. |
| 36394933 | “[Efficacy of newly developed kombucha-based specialized food product for treatment of constipation-predominant irritable bowel syndrome].” Voprosy pitaniia, 2022. PubMed record. | Randomised controlled trial of a kombucha-based specialised food product in constipation-predominant irritable bowel syndrome. |
Why these records do not transfer to the catalogue powder
The records test a green-tea kombucha and a kombucha-based specialised food product. Neither is the catalogue powder. A trial result applies only to the tested product and population. It should not be assigned to Fermented Black Tea (Camellia sinensis) Kombucha Powder unless the formulation and specification match the trial preparation.
Standardised extract or crude powder: how each is specified
A standardised extract is specified by a named marker, an assay method and a target range, and each lot’s certificate of analysis reports the corresponding result. A crude powder is specified by identity and agreed physical or compositional parameters. The table sets the two side by side for the catalogue powder.
| Specification element | Standardised extract | Crude powder (catalogue powder basis) |
|---|---|---|
| Marker | Named marker with a defined target range | A marker target applies only if the grade specification defines one |
| Assay method | Defined in the approved specification | Stated in the grade specification where a marker assay is required |
| Lot certificate | Reports the marker result for each lot | Reports the parameters agreed in the specification |
| Trial comparability | Trial results compared only on the same marker and extract type | Results from kombucha beverages or products are not transferred to it |
The catalogue powder is a fermented black tea powder. Compare lot results with a standardised extract only on the parameters both specifications share.
Sensory contribution and stability
The product page describes a sour, fermented-tea taste profile and notes that colour, taste and texture may vary from batch to batch. Test colour and flavour stability in the finished product under the intended storage and light conditions, comparing it with a retained reference sample. Record the method and acceptance observation in the purchase specification.
Specification for the catalogue powder
Bionutricia lists Fermented Black Tea (Kombucha) Powder as a bulk ingredient. Its product page describes the fermentation process, gives a use direction of 0.2% to 6%, and lists storage conditions and a 24-month shelf life. Set purchase requirements from the current product specification and the lot certificate of analysis, and assess the powder in the intended formulation through the buyer’s own quality and process qualification.
Supplying kombucha powder and related ingredients in bulk
Buyers building beverage or dry-blend matrices may also compare Arabic Gum (Acacia senegal) Powder and Coconut Water Powder as separate catalogue ingredients. Request the lot certificate of analysis and specification with any enquiry. Published quality credentials include FSSC 22000, JAKIM Halal, GMP, HACCP, MESTI and US FDA facility registration. The product page specifies storage in the original sealed packaging but does not state bulk packing options.
Frequently asked questions
Did the human trials test this catalogue powder? No. The two records test a green-tea kombucha and a kombucha-based specialised food product.
What use direction does the product page give? 0.2% to 6%, depending on the formulation, as stated on the product page.
How should dispersion be checked? The product page notes that powder texture may vary and that the powder may clump with heat or moisture. Test dispersion in the intended base before setting acceptance criteria.
Do colour and taste vary between batches? The product page states that they may. Compare each lot’s certificate of analysis and test stability in the finished product.
Does a trial result apply to this powder? Only to the tested product and population. Trial findings should not be assigned to the catalogue powder without a matching formulation and specification.
Request the specification and certificate of analysis for our Fermented Black Tea (Kombucha) Powder.
