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Characterization of biodegradable films based on salvia hispanica l. Protein and mucilage
M. I. CAPITANI
ANGEL JESUS MATUS BASTO
Juan Carlos Ruiz Ruiz
JOSE LUIS SANTIAGO GARCIA
DAVID ABRAM BETANCUR ANCONA
MAIRA RUBI SEGURA CAMPOS
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: 10.1007/s11947-016-1717-y
ANTIBACTERIAL ACTIVITY
BIODEGRADABLE FILMS
MECHANICAL PROPERTIES
PHYSICAL CHARACTERIZATION
Biodegradable films of chia by-products (mucilage and protein-rich fraction (PF)) incorporated with clove essential oil (CEO) were obtained and characterized. The effects of polymer concentration (PC; 1.0–3.0 %, w/v) and CEO concentration (0.1–1.0 %, v/v) were evaluated as well as the pH (7–10), using a 23 factorial design with four central points. The films exhibited moisture values between 11.6 and 52.1 % (d.b.), which decreased (p < 0.05) with increasing PC and CEO. The thickness of the films increased (p < 0.05) with increasing PC. PC and pH influenced (p < 0.05) the lightness (L) and variation in color between red and green (a). The orientation of the color to yellow-blue hues (b) decreased significantly (p < 0.05) with increasing PC. Transparency was significantly lower and higher (p < 0.05) than PC and CEO, respectively. The film surface morphology was evaluated using atomic force miscrocope images, and thermogravimetric analysis (TGA) was performed to study the thermal stability of the films. The displacement and tensile strength were significantly lower (p < 0.05) at higher concentrations of CEO, this variable being the only one with a significant effect. The chemical composition of the films was confirmed utilizing Fourier transform infrared (FTIR) spectroscopy. The proportion of CEO added to the films had a significant influence on antimicrobial activity, inhibiting the growth of both Escherichia coli and Staphylococcus aureus.
2016
Artículo
Food and Bioprocess Technology, 9(8), 1276-1286, 2016
Inglés
Capitani, M. I., Matus-Basto, A., Ruiz-Ruiz, J. C., Santiago-García, J. L., Betancur-Ancona, D. A., Nolasco, S. M., ... & Segura-Campos, M. R. (2016). Characterization of biodegradable films based on Salvia hispanica L. protein and mucilage. Food and Bioprocess Technology, 9(8), 1276-1286.
BIOLOGÍA Y QUÍMICA
Versión publicada
publishedVersion - Versión publicada
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