Food packaging; biopolymeric films

The development of new lignin-based materials has become a very attractive alternative for researchers due to the particular properties that these can offer and their potential applications. Lignin is biosourced, abundant, biodegradable and renewable, for those reasons, it is an appealing feedstock from which to make materials for diverse applications in diverse fields. Lignin-based nanoparticles may offer properties and morphologies that differ from those of more conventional materials.

Driven by the growing eco-awareness, bio-based polymers have been widely explored lately. In spite of important scientific breakthroughs, widespread technological usage is limited sometimes by performance mismatch with the currently used materials and often by the lack of scalability towards large-scale production. This study focuses on the combination of polysaccharides and proteins into a bilayer design that was shaped into flat films in a scaled-up fashion by continuous casting.