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.
2019-01-01
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
