Preparation and investigation of antioxidant behavior of edible films based on carboxymethyl cellulose containing mint essential oil and olive oil

Subject Areas :

sima pourbeyram ¹ , mahsa koshesh ²

1 - Department of Chemistry, Payame Noor University, Tehran, Iran
2 - Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran

Received: 2023-02-06 Accepted : 2023-05-27 Published : 2023-08-23

Keywords: Antioxidant, mint, Electrochemical measurement, biodegradable polymer,

Abstract :

The production of edible films based on the carboxymethyl cellulose as a biodegradable polymer containing the essential oil extracted from the mint plant, is reported in this work. To improve the quality of these films, materials such as calcium ascorbate as a binder, sucrose as an emulsifier, olive oil to make the films hydrophobic and mint essential oil as a source of antioxidants have been used. The results of the quality control tests showed that the addition of peppermint essential oil and olive oil significantly improved the quality of the base films. So that 27% of humidity, 31% of swelling, 30% of solubility and 39% of water vapor permeability were reduced in the case of the modified films. The results of the stress-strain diagrams showed that by adding calcium ascorbate to the composition of the films, the average tensile strength increased by 3.8 times and the elongation at break point increased by 2.3 times. According to the electrochemical measurements, the films containing peppermint essential oil had antioxidant properties and the stability and longevity of the essential oil inside the film was high.