Eugenol-loaded LLDPE films with antioxidant activity by supercritical carbon dioxide impregnation

Goñi, María L.; Gañán, Nicolás Alberto; Strumia, Miriam Cristina; Martini, Raquel E.

doi:10.1016/j.supflu.2016.01.012

Cited by 101 publications

(53 citation statements)

References 32 publications

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“…In general, eugenol and carvacrol EOs have similar chemical structures and both formed efficient hybrid systems when added to the clay . However, by incorporating the hybrid into the PE, the degree of crystallinity, morphology, and thermal stability changed in the composite, compared to pure PE.…”

Section: Resultsmentioning

confidence: 99%

Effect of clay and clay/essential oil in packaging films

Torin

Camani²,

Silva³

et al. 2017

Polymer Composites

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The influence of the different contents of organo‐modified montmorillonite clay (1 and 3%wt.) and two essential oils (Carvacrol and Eugenol ‐ 2 and 6%wt.) when incorporated into low‐density polyethylene films (LDPE) was characterized by X‐ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). This study shows the potential of montmorillonite clay as a carrier of carvacrol and eugenol essential oils, ClayC and ClayE, respectively, into LDPE nanocomposites. To prepare the nanocomposites, oils and clay hybrid were mixed and added to polyethylene using a homogenizer. The clay increased the thermal stability of the essential oils. PE/ClayC and PE/ClayE nanocomposites showed increased crystallinity as a function of the amount of hybrid; this was more significant for the PE/ClayC system. Increased crystallinity suggests that clay acts as nucleating agent, due its intercalated/exfoliated configuration. The results contribute to obtaining a more efficient nanocomposite system for subsequent applications, such as active packaging. POLYM. COMPOS., 39:4034–4040, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Effect of clay and clay/essential oil in packaging films

Torin

Camani²,

Silva³

et al. 2017

Polymer Composites

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show abstract

“…As previously mentioned, the validity of the experimental procedure and the mathematical approach was first verified by comparison with diffusion coefficient values of eugenol in LDPE reported in the literature. For that purpose, cumulative release curves were constructed using films impregnated with eugenol by scCO 2 ‐assisted impregnation under different pressure (12 and 15 MPa) and depressurization rate (0.5 and 1.0 MPa min −1 ) conditions . The release experiments were performed at similar laboratory conditions as described in the Experimental section for the ketone‐loaded films.…”

Section: Resultsmentioning

confidence: 99%

“…Eugenol was selected due to its chemical structure, molecular weight, and volatility behavior, which are closely related to the ketones studied in this work. The scCO 2 ‐assisted impregnation process and conditions have been described in a previous work …”

Section: Methodsmentioning

confidence: 99%

Mass transfer kinetics and diffusion coefficient estimation of bioinsecticide terpene ketones in LDPE films obtained by supercritical CO₂‐assisted impregnation

Goñi

Gañán

Martini

et al. 2017

J of Applied Polymer Sci

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Release kinetics of thymoquinone and R-(1)-pulegone impregnated in low-density polyethylene (LDPE) films into air and the effect of supercritical CO 2 -assisted impregnation process on the diffusional properties of these films were investigated. The incorporation of both ketones into LDPE films was performed under different conditions (pressure, depressurization rate, time, and initial ketone mole fraction). Release experiments were performed under controlled laboratory conditions (24 8C, 60% relative humidity), and the total release profile was determined gravimetrically, while the individual release of each ketone was quantified by Fourier transformed infrared. The experimental data were used to fit a mass transfer model based on the second Fick's law for unsteady-state diffusion, and the diffusion coefficients of both ketones in LDPE were estimated, ranging from 2.35 3 10 213 to 5.53 3 10 213 m 2 s 21 (thymoquinone) and from 1.24 3 10 213 to 4.52 3 10 213 m 2 s 21 (pulegone). Finally, analysis of variance testing indicated that impregnation pressure and depressurization rate (and their combination) have significant effects on the diffusion coefficient values.

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“…For example, Ecoflex® impregnated with olive leaf extract, linear low-density polyethylene (LLDPE) impregnated with eugenol, and PET/PP impregnated with mango leaf extract all exhibit antioxidant potential (Belizon, Fernandez-Ponce, Casas, Mantell, & de la Ossa-Fernandez, 2018;Goni, Ganan, Strumia, & Martini, 2016;Marcos et al, 2014). A potential means of protecting food from decay and diminished flavor without preservatives is to use packaging impregnated with naturally derived antioxidant compounds.…”

Section: O R I G I N a L R E S E A R C Hmentioning

confidence: 99%

In‐situ extraction and impregnation of black walnut husk into polyethylene film using supercritical carbon dioxide with an ethanol modifier

Wenzel

Moorman

Wang

et al. 2019

Food Science & Nutrition

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Eugenol-loaded LLDPE films with antioxidant activity by supercritical carbon dioxide impregnation

Cited by 101 publications

References 32 publications

Effect of clay and clay/essential oil in packaging films

Effect of clay and clay/essential oil in packaging films

Mass transfer kinetics and diffusion coefficient estimation of bioinsecticide terpene ketones in LDPE films obtained by supercritical CO₂‐assisted impregnation

In‐situ extraction and impregnation of black walnut husk into polyethylene film using supercritical carbon dioxide with an ethanol modifier

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Eugenol-loaded LLDPE films with antioxidant activity by supercritical carbon dioxide impregnation

Cited by 101 publications

References 32 publications

Effect of clay and clay/essential oil in packaging films

Effect of clay and clay/essential oil in packaging films

Mass transfer kinetics and diffusion coefficient estimation of bioinsecticide terpene ketones in LDPE films obtained by supercritical CO2‐assisted impregnation

In‐situ extraction and impregnation of black walnut husk into polyethylene film using supercritical carbon dioxide with an ethanol modifier

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Mass transfer kinetics and diffusion coefficient estimation of bioinsecticide terpene ketones in LDPE films obtained by supercritical CO₂‐assisted impregnation