Determination of L-Malic acid in cider
By analyzing L-Malic acid and L-Lactic acid, it is possible to assess the correct progress of the malolactic fermentation.
L-Malic acid in presence of NAD+ is oxidized in an alkaline environment through an enzymatic reaction and converted into oxaloacetic acid, which is turn produces NADH. The increase of absorbance, measured at 366 nm (end-point), is directly proportional to the concentration of L-Malic acid in the sample.
The calibration curve of CDR CiderLab, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.
Reagent test Kits
The Analyzers for process and quality control in cider production
- 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, supplied configured with 3 analyses of your choice, implementable
- Up to 3 determinations simultaneously
- Wireless connection to external printer
- USB connections