Determination of Alcohol by Volume (ABV) in Cider
Alcohol content is the measurement of ethanol content in an alcoholic beverage. In cider constitutes an important quality parameter.
The determination of alcohol by volume with CDR CiderLab is simpler and more rapid than reference method. It consists in a simple photometric reading and operates on a small sample of cider as is without any distillation.
The analysis has a high repeatibility and reliable. The results you obtain with CDR CiderLab are compliant with the results reference analytical methods.
Method
Sample treatment
If necessary, the sample shall be degassed 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). Dilute the sample if required by the method.
Principle of the test
Ethanol is oxidized in an alkaline environment through an enzymatic reaction and converted in acetic aldehyde in presence of NAD+, which in turns produces NADH. The increase of the absorbance, measured at 366 nm (end-point) is directly proportional to the concentration of ethanol in the sample.
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Calibration curve
The calibration curve of CDR CiderLab, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.
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Reagent test Kits
Code*300603: 10 tests
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| Alcohol by volume [9-17] % | 9 - 17 %vol | 0.1 %vol | 0.2 %vol |
| Alcohol by volume [1-12] % | 1 - 12 %vol | 0.1 %vol | 0.1 %vol |
The Analyzers for process and quality control in cider production
CDR CiderLab
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 CiderLab Jr
Partial analysis panel, customisable configuration
Up to 3 determinations simultaneously
Wireless connection to external printer
USB connections
