Ph-indicating properties and storage stability of a smart edible film based on nopal-mucilage/gellan gum and red cabbage anthocyanins


Por: Solano-Doblado L.G., Heredia F.J., Gordillo B., Dávila-Ortiz G., Alamilla-Beltrán L., Maciel-Cerda A., Jiménez-Martínez C.

Publicada: 1 ene 2020
Categoría: Chemical engineering (miscellaneous)

Resumen:
Nopal mucilage is a complex polysaccharide with great potential in the preparation of films for food packaging. In this work, a smart edible film was developed with pH-indicating capabilities based on nopal mucilage/gellan gum, and red cabbage anthocyanins (70:20 w/w, and 10%, respectively). Physical properties, appearance, and colorimetric functionality were characterized at a pH range 2.5-5.9. Color stability, measured by CIELAB, was tested with different storage conditions and time, and interpreted by differential tristimulus colorimetry. Results showed films with uniform appearance, flexibility, easyhandling, and excellent color response within the pH range studied. The evolution of color difference (?E*ab) confirmed that the colorimetric functionality of films was stable at short storage periods (8 days) under natural conditions of sunlight and oxygen exposure, whereas a more extended storage period affected the films. Results showed that the film is an excellent barrier and presents color changes triggered by pH changes. © 2020, Universidad Autonoma Metropolitana Iztapalapa. All rights reserved.

Filiaciones:
Solano-Doblado L.G.:
 Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico

Heredia F.J.:
 Food Colour and Quality Laboratory, Universidad de Sevilla, Sevilla, 41012, Spain

Gordillo B.:
 Food Colour and Quality Laboratory, Universidad de Sevilla, Sevilla, 41012, Spain

Dávila-Ortiz G.:
 Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico

Alamilla-Beltrán L.:
 Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico

Maciel-Cerda A.:
 Instituto de Investigaciones en Materiales (IIM), Universidad Nacional Nacional Autónoma de México, Mexico City, Mexico

Jiménez-Martínez C.:
 Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
ISSN: 16652738
Editorial
UNIV AUTONOMA METROPOLITANA-IZTAPALAPA, SAN RAFAEL ATLIXCO NO 186, COL VICENTINA, DELEGACION IZTAPALAPA, MEXICO, 09340, MEXICO, México
Tipo de documento: Article
Volumen: 19 Número:
Páginas: 363-374
WOS Id: 000555863500031