title: Nanocomposites of rice and banana flours blend with montmorillonite: partial characterization.
abstract: Rice and banana flours are inexpensive starchy materials that can form films with more improved properties than those made with their starch because flour and starch present different hydrophobicity. Montmorillonite (MMT) can be used to further improve the properties of starch-based films, which has not received much research attention for starchy flours. The aim of this work was to evaluate the mechanical and barrier properties of nanocomposite films of banana and rice flours as matrix material with addition of MMT as a nanofiller. MMT was modified using citric acid to produce intercalated structures, as verified by the X-ray diffraction pattern. The intercalated MMT was blended with flour slurries, and films were prepared by casting. Nanocomposite films of banana and rice flours presented an increase in the tensile at break and elongation percentage, respectively, more than their respective control films without MMT. This study showed that banana and rice flours could be alternative raw materials to use in making nanocomposite films.
authors.affiliation: Centro de Desarrollo de Productos Bióticos, Instituto Politécnico Nacional, Km 6 carr Yautepec-Jojutla, Calle Ceprobi No. 8, Colonia San Isidro, Apartado Postal 24, C.P 62731, Yautepec, Morelos, Mexico.
authors.forename: María L
authors.initials: ML
authors.lastname: Rodríguez-Marín
authors.forename: Luis A
authors.initials: LA
authors.lastname: Bello-Pérez
authors.forename: Hernani
authors.initials: H
authors.lastname: Yee-Madeira
authors.forename: Qixin
authors.initials: Q
authors.lastname: Zhong
authors.forename: Rosalía A
authors.initials: RA
authors.lastname: González-Soto
mesh_terms: D001546:Bentonite / Q000737:chemistry*; D005433:Flour; D028521:Musa / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D012275:Oryza / Q000737:chemistry*; D010539:Permeability; D013227:Steam; D013718:Tensile Strength; D014961:X-Ray Diffraction
chemical_list: D013227:Steam; D001546:Bentonite
keywords: Filler; Flour; Mechanical properties; Nanoclay; Nanocomposites; Water-vapor permeability