Effect of the addition of soy lecithin and Yucca schidigera extract on the properties of gelatin and glycerol based biodegradable films - Dias, Tatiana P; Grosso, Carlos Raimundo Ferreira; Andreuccetti, Caroline; Carvalho, Rosemary Aparecida de; Galicia-García, Tomás; Martínez-Bustos, Fernando (Polímeros : Ciência e Tecnologia, 2013)