Producción Científica Profesorado

Effect of airflow presence during the manufacturing of biodegradable films from polymers with different structural conformation



Gómez Aldapa, Carlos Alberto

2018

Aguirre-Loredo, R.Y. Velazquez, G., Gutierrez, M.C., Castro-Rosas, J., Rangel-Vargas, E., Gómez-Aldapa, C.A., Food Packaging and Shelf Life, (2018), 17, 162-170DOI: 10.1016/j.fpsl.2018.06.007


Abstract


The preparation method to obtain biodegradable films has an important effect on their performance. The drying of film-forming solutions is a very important step usually ignored during the manufacturing of biodegradable films. The objective of this study was to evaluate the effect of the drying process (natural convection or forced convection) on the functional properties of films from polymers with different structure. The film-forming solutions were dried using airflow (forced convection) and no air circulation (natural convection). Films from polyvinyl alcohol (PVOH, with linear structure) and polymers with different degree of branching (potato starch and high amylose corn starch) were evaluated. Films dried in forced convection showed important changes in the water adsorption, mechanical and thermal properties. Drying under forced convection could have promoted the formation of intermolecular bonds during the rearrangement of the polymer chains resulting in films with greater barrier to water vapor and better mechanical performance.



Producto de Investigación




Artículos relacionados

The Avrami Index and the Fractal Dimension in Vegetable Oil Crystallization

Composición química de cebadas cultivadas bajo diferentes condiciones de labranza en tres localidade...

Evaluación del Efecto Antihiperglucémico del Bagazo de Naranja (Citrus sinensis var.Valencia) en Est...

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS

Behavior of Salmonella Typhimurium, Staphylococcus aureus, Listeria monocytogenes, and Shigella flex...

INCORPORACIÓN DE ÁCIDOS GRASOS OMEGA 3 EN HUEVO DE GALLINAS PONEDORAS A TRAVÉS DE LA SUPLEMENTACIÓN ...

EFECTO DE LA MODIFICACIÓN ÁCIDA DE ALMIDÓN DE MAÍZ AZUL (Zea mays) CON DIFERENTES SOLVENTES ACIDIFIC...

CARACTERIZACIÓN FISICOQUÍMICA DEL LACTOSUERO EN EL VALLE DE TULANCINGO

EFECTO DEL EXTRACTO DE LA CEREZA EN LA REDUCCIÓN DE COLESTEROL.

Incidence and Behavior of Salmonella and Escherichia coli on Whole and Sliced Zucchini Squash (Cucur...