Determination of sugars in olives

CDR OxiTester: the fast, simple and reliable olive oil testing system, to be used directly at the oil mill, in the oil processing plant or at the time of purchase

The measurement of glucose and fructose can provide important indications on the maturation of the olives. By determining the total quantity of fermentable sugars, the sum of glucose and fructose, it is possible to evaluate the correct period for the olive harvest.

Analyser for the determination of Fermentable Sugar in Olives

It is possible to determine the quantity of fermentable sugars in the olive with the CDR OxiTester analysis tool for olive oil from the CDR FooodLab®  range.

  CDR OxiTester per analisi su olio di oliva
CDR OxiTester
Analyses Olive Oil:
Peroxide Value
Acidity (FFA)
Total Polyphenols/OSI
Sugars in Olives
Simultaneous Sample Analyses 16
Multiple Analyses on a Sample si


Test type: End Point.
Time testing: one test 6 minutes.
Are possible test sessions with several samples, up to a maximum of 16.

Rapid analysis of fermentable sugars in the olive

Test Principle

Glucose + Fructose + ATP + NAD + Reaction Fermentable Sugars ADP + Gluconate 6-P + NADH

The glucose and fructose present in the sample are determined enzymatically in a specific way. The Redox reaction is read at 366 nm (end-point) and the absorbance value is directly proportional to the concentration of glucose and fructose in the sample.

Correlation with the reference method

The correlation curve of the analysis, carried out with respect to the reference method, confirmed an excellent linearity of the system over the entire measurement range.

The correlation curve obtained by comparison with the reference method confirmed an excellent linearity of the system over the entire range. R²=0.990

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. *300384: 10 tests 

Code. *300380: 100 tests (10 packages of 10 tests)

The reagents have a shelf-life of 18 months

Sample Processing

Olives: grind approximately 50 grams of olives in order to obtain a homogeneous paste. Transfer the paste to a centrifuge tube and centrifuge at 5000 rpm for 5 minutes.

Measuring Range

Measuring Range Resolution Repeatibility
0.5 – 50,0 mg/L 0.1 mg/L 0.1 mg/L

Discover all the features of the CDR OxiTester Analysis System »

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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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