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Application RapidOxy: Stability of Peppermint Oil

The stability of peppermint oil with and without antioxidants was tested with the RapidOxy and in accordance with the standard EN 14112.

Alternative to Traditional Stability Test Methods

The rapid small scale tester, RapidOxy, is a fast, safe and user-friendly alternative to traditional stability test methods. The instrument measures the induction period, which can be used as an indication of the oxidation and storage stability. Compared to other oxidation and storage stability test methods, the RapidOxy procedure requires only a small sample to give exact test results in a short period of time.

 

New Application

Until now the peppermint oil samples were evaluated only by taste or smell. The RapidOxy method is not dependent on sensory evaluation of a sample and gives reliable and unbiased results because the induction period is a well-defined value.

Fig. 1: Display of test progress

 

Accessories

107296 O-ring set, Viton®, pack of 100

107138 Cleaning tissues, 150 sheets

107137 Pipettes, 5 mL, pack of 100

107084 Oxygen filling line

 

Results

Test temperature 100 °C 120 °C 140 °C EN 14112 (110 °C)
Peppermint oil:
without antioxidant
74.20 22.68 10.42 54.00
Peppermint oil:
with antioxidant
84.85 not tested 11.32 60.00

Tab. 1: Results for peppermint oil in minutes

 

Discussion

As it was expected before that the oxidation time for the sample with additive is in all cases longer than for the sample without antioxidant.

Even at 140 °C the difference is visible, although the oxidation times for both samples are very short.

For gaining correlation data, the two samples were also tested according to EN 14112.

EN 14112 is an established method for testing the oxidation stability of food or cosmetics.

Nevertheless, this method has several disadvantages, e.g. the cleaning procedure is very time-consuming.

 

Do you have any questions?

Contact Anton Paar ProveTec directly: support.provetec[at]anton-paar.com

Learn more about the RapidOxy