Analysis of Glycerol in cider

Among the polyalcohols which are formed during the fermentation there are mannitol, sorbitol, butylene glycol and glycerol. The latter is particularly interesting because the cider can be present with values ranging between 5-18 g/L and is also produced in large quantities by noble rot during the production of passito ciders. This explains the softness and elegance of this type of cider.

The Analyzers CDR CiderLab for determining Glycerol in cider

The system is supplied pre-calibrated and ready for use.
Results are expressed in accordance with the reference method.
The reagents have a shelf-life untill 18 months
The analytical methods are simple: the system does not require an equipped laboratory or skilled staff.

	CDR CiderLab	CDR CiderLab JUNIOR
Analyses	Fermentable Sugars Total Acidity Acetic Acid L-Lactic Acid L-Malic Acid Alcohol Free sulfur dioxide (Free SO2) Total sulfur dioxide (Total SO2) pH Yeast assimilable nitrogen (YAN) Glycerol TPI – Total Polyphenols Index	Configuration with tailored panel of analyses
Simultaneous Sample Analyses	16	3
Multiple Analyses on a Sample		–

Method

Test type: End Point.
Testing time: one test 3 minutes.
Are possible test sessions with several samples, up to a maximum of 16.
It is also possible to calibrate the system aligning test to a reference value

Calibration curve

The calibration curve of CDR CiderLab , obtained using reference methods.

Test Principle

The glycerol reacts, by an enzyme, with a phenolic derivative and induces the formation of a complex pink color whose intensity, measured at 505 nm, is directly proportional to the concentration of glycerol in the sample. The result is expressed in g / L.

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 *300515 : The kit, designed for 10 tests

Code *300520: The kit, designed for 100 tests

The reagents have a shelf-life of 12 months.

Processing – Sample Volume – Measuring Range direction

Use the cider as is.

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