Poly (lactic acid)-based coatings, containing a hydroxytyrosol-rich olive extract and two different surfactants (Tween 80 and Span 85), suitable for food packaging applications, were developed and characterized. In vitro release of hydroxytyrosol in Ethanol 95% simulant was quantified by HPLC analysis, and 2-diphenyl-1-picrylhydrazyl (DPPH) spectroscopic assay was applied to investigate the antioxidant capacity. Results pointed out the effectiveness of the formulated bio-coatings in releasing antioxidant molecules and the key role of the surfactant in determining the release kinetics suggesting the possibility to design and develop tailor-made active packaging solutions according to the requirements of the target food.

Antioxidant activity of bio-coatings for food packaging

Apicella A.;Scarfato P.;Di Maio L.;Incarnato L.
2019

Abstract

Poly (lactic acid)-based coatings, containing a hydroxytyrosol-rich olive extract and two different surfactants (Tween 80 and Span 85), suitable for food packaging applications, were developed and characterized. In vitro release of hydroxytyrosol in Ethanol 95% simulant was quantified by HPLC analysis, and 2-diphenyl-1-picrylhydrazyl (DPPH) spectroscopic assay was applied to investigate the antioxidant capacity. Results pointed out the effectiveness of the formulated bio-coatings in releasing antioxidant molecules and the key role of the surfactant in determining the release kinetics suggesting the possibility to design and develop tailor-made active packaging solutions according to the requirements of the target food.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4783762
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