Determination of the Total Acidity in Kombucha

CDR KombuchaLab: the kombucha analysis system to optimize the production process obtaining results in real time.

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.

CDR KombuchaLab: Instruments for the determination of Total Acidity in Kombucha

The instruments are supplied pre-calibrated and ready to use.
The results are expressed according to the reference method.
The methods are simple: there is no need for an equipped laboratory or for specialist personnel.

  CDRKombuchaLab for analysis on Kombucha on pruction line
CDR KombuchaLab
CDRKombuchaLab Junior for analysis on Kombucha on pruction lineCDR KombuchaLab Junior
Analyses Kombucha:
Alcohol by Volume
Total Polyphenols
Fermentable Sugars
Acetic Acid
Total Acidity
Gluconic Acid
Galacturonic Acid
L-Malic Acid
Total Lactic Acid
Glycerol
Yeast Assimilable Nitrogen (YAN)
Configuration with tailored panel of analyses
Simultaneous Sample Analyses 16 3
Multiple Analyses on a Sample si

Method

Test type: End Point.
Time testing: instant reading
Analysis sessions with multiple samples are possible for up to a maximum of 16 tests for CDR KombuchaLab and 3 tests for CDR KombuchaLab Junior .

Calibration curve

The calibration curve of CDR KombuchaLab, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.

Total acidity analysis calibration curve with CDR KombuchaLab. R² = 0.992

Test Principle

Total acidity reacts with a proper chromogen, bleaching it. The decrease of absorbance is proportional to the total acidity value in the sample.

Reagent test Kits

The reagents are packaged in foil pouches containing 10 tubes useful to perform 10 analyses.

This is the minimum package that allows the use of CDR systems even to those who need to make a few analyses, thus not wasting reagents.

There are also boxes of 100 tests, however, packaged in 10 bags of 10 tubes containing the reagent.

Code *300320: The kit, designed for 10 tests
Code *300315: The kit, designed for 100 tests

The reagents have a shelf-life of 6 months.

Processing Sample

Degas the sample using the ultrasonic bath and clarify it, if necessary, using the centrifuge. 

Measuring Range

Test Measuring range
(g/L tartaric acid)
Resolution
(g/L tartaric acid)
Repeatability (tartaric acid)
Total Acidity 1 – 8 0,1 0,1

Reagents developed by CDR S.r.l - Quality System Certified ISO 9001 Ed. 2015 - Certificate n. 9115

Click here for further information on CDR KombuchaLab for Kombucha analysis: Reliable, quick and simple to use, reliable results

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With the CDR system, you can perform your tests in total autonomy

Neither skilled staff nor a dedicated external laboratory is needed to use our systems. CDR FoodLab® optimizes traditional testing methods, making them faster and easier, while guaranteeing accuracy standards in line with the reference methods.

Analytical kit

CDR FoodLab® Analysis Systems use disposable pre-vialed reagents specifically developed by the research laboratories of CDR. The use of pre-vialed reagents and the analytical procedures allow:

  • a sample preparation that is quick and easy, when needed at all;
  • making analytical procedures extremely fast and easy;
  • removing all needs for complex calibration procedures.

Reagents come in aluminum packages containing 10 test tubes each to perform 10 tests (or packages for 100 tests containing 10 single packages of 10 test tubes each).

Just a few steps and results are yielded right away

Just a few steps will suffice to carry out your analysis in a rapid way in total autonomy. The system is composed of both the analyzer based on photometric technology and a kit of low toxicity, pre-vialed reagents, developed by CDR.

CDR FoodLab® is cost-effective because it does not require the use of expensive equipment and does not entail maintenance, assistance or calibration costs.
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