Quercetin, a flavonoid with outstanding antioxidant and antimicrobial properties, was adsorbed onto maize starch aerogel (MSA) and calcium alginate aerogel (CAA) through supercritical carbon dioxide adsorption. The composite systems may be applied in active packaging for food preservation. Supercritical adsorption experiments were performed at 180 bar and 40 and 60 °C. They showed that the higher amount of charged quercetin was obtained at 60 °C onto CAA as support. Field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), specific surface area (SSA) determination, and differential scanning calorimetry (DSC) were used to characterize the composite systems. In vitro dissolution tests were also performed to study the possibility of employing quercetin adsorbed onto MSA and CAA as an active layer in food packaging.

Supercritical Adsorption of Quercetin on Aerogels for Active Packaging Applications

Franco, Paola;Reverchon, Ernesto;De Marco, Iolanda
2018-01-01

Abstract

Quercetin, a flavonoid with outstanding antioxidant and antimicrobial properties, was adsorbed onto maize starch aerogel (MSA) and calcium alginate aerogel (CAA) through supercritical carbon dioxide adsorption. The composite systems may be applied in active packaging for food preservation. Supercritical adsorption experiments were performed at 180 bar and 40 and 60 °C. They showed that the higher amount of charged quercetin was obtained at 60 °C onto CAA as support. Field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), specific surface area (SSA) determination, and differential scanning calorimetry (DSC) were used to characterize the composite systems. In vitro dissolution tests were also performed to study the possibility of employing quercetin adsorbed onto MSA and CAA as an active layer in food packaging.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4719630
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 43
  • ???jsp.display-item.citation.isi??? 34
social impact