Film forming solutions based on gelatin and poly(vinyl alcohol) blends: thermal and rheological characterizations - Moraes, Izabel Cristina Freitas; Carvalho, Rosemary Aparecida de; Bittante, Ana Mônica Quinta Barbosa; Solorza-Feria, Javier; Sobral, Paulo José do Amaral (Journal of Food Engineering, 2009)