Characterization of active edible films based on citral essential oil, alginate and pectin / Valentina Siracusa, Santina Romani, Matteo Gigli, Cinzia Mannozzi, Juan Pablo Cecchini, Urszula Tylewicz and Nadia Lotti.

Contributor(s): Siracussa, Valentina [autor] | Romani, Santina [autor] | Gigli, Mateo [autor] | Mannozzi, Cinzia [autor] | Cecchini, Juan Pablo [autor] | Tylewicz, Urszula [autor] | Lotti, Nadia [autor]Material type: TextTextLanguage: Spanish Publication details: Suiza : MDPI, 2018Description: recurso en líneaSubject(s): alimentosOnline resources: Click here to access online Abstract: Thermal, structural and physico-chemical properties of different composite edible films based on alginate and pectin with the addition of citral essential oil (citral EO) as an agent to improve barrier properties, were investigated. The obtained films were clear and transparent, with a yellow hue that increased with citral EO addition. All the films displayed good thermal stability up to 160 C, with a slight improvement observed by increasing the amount of citral EO in the composites. Gas transmission rate (GTR) strongly depended on the polymer structure, gas type and temperature, with improvement in barrier performance for composite samples. Also, citral EO did not exert any weakening action on the tensile behavior. On the contrary, an increase of the elastic modulus and of the tensile strength was observed. Lastly, water contact angle measurements demonstrated the dependence of the film wettability on the content of citral EO.
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Thermal, structural and physico-chemical properties of different composite edible films based on alginate and pectin with the addition of citral essential oil (citral EO) as an agent to improve barrier properties, were investigated. The obtained films were clear and transparent, with a yellow hue that increased with citral EO addition. All the films displayed good thermal stability up to 160 C, with a slight improvement observed by increasing the amount of citral EO in the composites.
Gas transmission rate (GTR) strongly depended on the polymer structure, gas type and temperature, with improvement in barrier performance for composite samples. Also, citral EO did not exert any weakening action on the tensile behavior. On the contrary, an increase of the elastic modulus and of the tensile strength was observed. Lastly, water contact angle measurements demonstrated the dependence of the film wettability on the content of citral EO.