Gelatin/mushroom (Lactarius deliciosus) extract nanofibers fabricated by electro-assisted solution blow spinning as a potential edible active food packaging

This study aimed to develop novel gelatin nanofibers loaded with Lactarius deliciosus extract for food packaging via the electro-assisted solution-blown spinning technique. Gelatin nanofibers loaded with four different concentrations of extract were fabricated with centrifugal spinning and subsequently cross-linked. Nanofibers were characterized by morphological, chemical, thermal, and bioactivity aspects. Nanofibers exhibited antioxidant activity determined by DDPH and ABTS methods with increasing extract ratio. In addition, the nanofibers had antimicrobial activity against E. coli, S. aureus and B. cereus in relation to the mushroom extract they contained. The developed nanofibers have the potential to be used in the active edible packaging of fresh foodstuffs to extend the shelf life, as well as provide a robust solution to reduce synthetic plastic pollution.