Preparation and characterization of cellulose nanofibers (CNFs) obtained from agro-industrial by-products. Evaluation of film-forming solutions prepared with soy proteins and CNFs.

GABRIELA NOEL BARRERA; GABRIELA GASTELU; AGUSTÍN GONZÁLEZ; PABLO DANIEL RIBOTTA; CECILIA I. ÁLVAREZ IGARZABAL

MAR DEL PLATA

Simposio; XVI Latin-American Polymer Symposium (SLAP 2018), XIV Iberoamerican Polymer Congress (CIP 2018); 2018

INTEMA (UNMdP-CONICET)

Biodegradable materials are associated with the use of renewable raw materials, such as proteins and polysaccharides, which can be extracted from agro-industrial byproducts. In particular, isolated soy protein (SPI) has exceptional filmogenic properties and low cost. On the other hand, obtaining nanofibers from low cost agro-industrial by-products offers the possibility of using these materials as nano-reinforcers of the SPI films.The preparation of CNFs was successfully achieved. These materials were characterized showing nanometric sizes and a large percentage of crystallinity for the CNFs prepared from soybean husks. They were used to prepare filmogenic solutions from SPI dispersions which were characterized according to their particle size and rheological properties. These filmogenic solutions will be used to form biodegradable films to be used as a food coating.