Essential oils (EOs) are promising substances to be incorporated in food packaging materials as antioxidant and/or antimicrobial agents in active packaging systems. Once incorporated into the materials, their constituent compounds diffuse through the material. However, there is little information about the diffusion behaviour of EOs in plastics, and this is one of the major drawbacks in the design of active packaging relying on EOs as active agents. This study presents a new method for studying the diffusion of basil, citronella, oregano and rosemary EOs into plastic films. Diffusion assays of EOs from a coated polypropylene (PP) film into a stack of virgin PP films were conducted by the Moisan method using up to 10 layers of PP. Direct quantification of diffused analytes from the plastic sheets was performed by multiple headspace solid phase microextraction–gas chromatography–mass spectrometry. The fitting of experimental data for the main EO components with a Fickian model gave diffusion and partition (between active and virgin PP) coefficients, which are discussed under the light of some intrinsic factors contributing to the diffusion process. The results demonstrate the dependence of diffusion and partition coefficients on the initial concentration of EO components in the coated films, on their molecular weight and on their polarity. In particular, for similar molecular weight and initial concentration, a higher polarity is responsible for a faster diffusion, whereas lower polarity determines the retention of the EO component in the coating layer.

Diffusional behaviour of essential oil components in active packaging polypropylene films by Multiple Head-Space-Solid Phase Microextraction-Gas Chromatography (MHS-SPME-GC-MS) / Licciardello, F.; Muratore, G; Mercea, P.; Tosa, V.; Nerin, C.. - In: PACKAGING TECHNOLOGY AND SCIENCE. - ISSN 0894-3214. - 26:3(2013), pp. 173-185. [10.1002/pts.1969]

Diffusional behaviour of essential oil components in active packaging polypropylene films by Multiple Head-Space-Solid Phase Microextraction-Gas Chromatography (MHS-SPME-GC-MS)

Licciardello F.;
2013

Abstract

Essential oils (EOs) are promising substances to be incorporated in food packaging materials as antioxidant and/or antimicrobial agents in active packaging systems. Once incorporated into the materials, their constituent compounds diffuse through the material. However, there is little information about the diffusion behaviour of EOs in plastics, and this is one of the major drawbacks in the design of active packaging relying on EOs as active agents. This study presents a new method for studying the diffusion of basil, citronella, oregano and rosemary EOs into plastic films. Diffusion assays of EOs from a coated polypropylene (PP) film into a stack of virgin PP films were conducted by the Moisan method using up to 10 layers of PP. Direct quantification of diffused analytes from the plastic sheets was performed by multiple headspace solid phase microextraction–gas chromatography–mass spectrometry. The fitting of experimental data for the main EO components with a Fickian model gave diffusion and partition (between active and virgin PP) coefficients, which are discussed under the light of some intrinsic factors contributing to the diffusion process. The results demonstrate the dependence of diffusion and partition coefficients on the initial concentration of EO components in the coated films, on their molecular weight and on their polarity. In particular, for similar molecular weight and initial concentration, a higher polarity is responsible for a faster diffusion, whereas lower polarity determines the retention of the EO component in the coating layer.
26
3
173
185
Diffusional behaviour of essential oil components in active packaging polypropylene films by Multiple Head-Space-Solid Phase Microextraction-Gas Chromatography (MHS-SPME-GC-MS) / Licciardello, F.; Muratore, G; Mercea, P.; Tosa, V.; Nerin, C.. - In: PACKAGING TECHNOLOGY AND SCIENCE. - ISSN 0894-3214. - 26:3(2013), pp. 173-185. [10.1002/pts.1969]
Licciardello, F.; Muratore, G; Mercea, P.; Tosa, V.; Nerin, C.
File in questo prodotto:
File Dimensione Formato  
PTS_Diffusional-behaviour-of-essential-oil-components-in-active-packaging-polypropylene-films-by-multiple-headspace-solid-phase-microextraction-gas-c.pdf

non disponibili

Dimensione 412.92 kB
Formato Adobe PDF
412.92 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1161452
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 25
  • ???jsp.display-item.citation.isi??? 25
social impact