Determination of the Total Acidity in Kombucha
The total acidity of the kombucha is the sum of its titratable acidities when it is titrated to pH 7 against a standard alkaline solution.
Carbon dioxide is not included in the total acidity.
Method
Sample treatment
Degas the sample by using the specific ultrasonic bath (code 222062). In case of tests performed on must, the sample shall be centrifuged (code 222061) or filtered (code 300210).
Principle of the test
The total acidity reacts with a proper chromogen to decolorize it. The magnitude of discoloration, measured at 578 nm, is proportional to the total acidity value in the sample.
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Calibration curve
The calibration curve of CDR KombuchaLab, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.
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Reagent test Kits
Code*301405: 10 tests
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| Total acidity [1-10] g/L | 1 - 10 g/L Tartaric acid | 0.1 g/L Tartaric acid | 0.1 g/L Tartaric acid |
The Analyzers for process and quality control in kombucha brewing
CDR KombuchaLab
Complete analysis panel, supplied already configured
Up to 16 determinations simultaneously
Possibility of carrying out analyses of the same sample
Integrated printer
Full connections (LAN - USB - Bluetooth barcode/QR code reader)
CDR KombuchaLab Jr
Partial analysis panel, customisable configuration
Up to 3 determinations simultaneously
Wireless connection to external printer
USB connections