Determination of FAN in beer and wort
Free Amino Nitrogen by OPA (FAN) is a test that allows to manage correctly the alcohol fermentation. Infact, the lack of Nitrogen can cause a slowing-down or even the stop of the fermentation, compromising seriously the quality and the organoleptic characteristics of the beer.
FAN analysis with the CDR BeerLab® method gives the possibility to carry out with accuracy the appropriate corrections before and during the alcohol fermentation.
Method
Test Principle
Organic Nitrogen - The α-amino Nitrogen reacts in presence of N-acetyl-L-cysteine with o-phthalaldehyde forming an isoindole derived. The difference of absorbance, measured at 366 nm (end point), is correlated with the quantity of Organic Nitrogen expressed in mg/L of Nitrogen.
Calibration Curve
Calibration curve obtained with samples of known values.
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Reagent test Kits
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
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The Analyzers for process and quality control in beer brewing
CDR BeerLab®
- 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 BeerLab® 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