Esne-gazuratik eratorritako film biodegradagarriak

Abstract

Cheese factories in Euskadi produce a significant amount of whey and its discharge can cause important environmental damages. Therefore, the objective of this study was to prepare biodegradable films using whey protein. In this way, the films prepared with proteins obtained from agroindustrial bio-waste not only will reduce the amount of food waste, but also may help increase the shelf life of foodstuffs. Among different film manufacturing techniques, compression moulding was selected to produce films based on whey protein with the aim of reducing production time and promoting more sustainable processes. After optimising the film manufacturing process, the physical, chemical, barrier, optical and mechanical properties of the films were assessed. In addition to the properties of the films, an environmental impact study of the samples was conducted as well.