An innovative anti-radical electrospun nanofiber patch infused with microwave-roasted polyphenol-rich Camelina (Camelina sativa L.) seed oil as controlled release food packaging
摘要
This study aimed to develop an anti-radical electrospun poly(vinyl alcohol) (PVA) nanofiber patch containing a microwave-roasted Camelina (Camelina sativa L.) seed oil nanoemulsion (CSONE) as a controlled-release system rich in polyphenols. The effects of different microwave roasting powers and times on oil yield, total phenolic content (TPC), oxidative stability (OSI), and radical scavenging activity (RSA) were investigated. Microwave roasting enhanced oil extraction and antioxidant properties up to an optimal point, beyond which these decreased. A Camelina protein isolate-stabilized oil-in-water nanoemulsion was prepared and showed high stability under stress tests. The resulting electrospun patch exhibited smooth morphology with an average fiber diameter of 342.6 nm, significant protection of polyphenols against UV and heat, rapid wetting time (< 30 s), and temperature-responsive controlled release of oil. These results suggest the potential of the developed patch as an active packaging material for preserving food quality through controlled release of antioxidants.