Development of Antibacterial Thermoplastic Starch with Natural Oils and Extracts: Structural, Mechanical and Thermal Properties
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/139672
Título: | Development of Antibacterial Thermoplastic Starch with Natural Oils and Extracts: Structural, Mechanical and Thermal Properties |
---|---|
Autor/es: | López Terán, Jorge Luis | Cabrera Maldonado, Elvia Victoria | Araque Rangel, Judith del Carmen | Poveda Otazo, José | Beltrán, Maribel |
Grupo/s de investigación o GITE: | Procesado y Pirólisis de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Química |
Palabras clave: | Thermoplastic starch | Biopolymer | Biodegradable | Essential oils | Antimicrobial activity |
Fecha de publicación: | 8-ene-2024 |
Editor: | MDPI |
Cita bibliográfica: | López Terán JL, Cabrera Maldonado EV, Araque Rangel JdC, Poveda Otazo J, Beltrán Rico MI. Development of Antibacterial Thermoplastic Starch with Natural Oils and Extracts: Structural, Mechanical and Thermal Properties. Polymers. 2024; 16(2):180. https://doi.org/10.3390/polym16020180 |
Resumen: | In this study, the influence of the incorporation of eucalyptus (EO), tea tree (TT) and rosemary (RO) essential oils and Chiriyuyo extract (CE) on the structure and properties of thermoplastic starch (TPS) obtained from potato starch, glycerin and water was evaluated. All oils and the extract were used at a concentration of 0.5 g/100 g of TPS, while for TT, the effect of the concentration was also studied. The mixtures obtained were processed by extrusion and thermocompression molding. The sheets were characterized by XRD, FTIR, TGA, SEM and analyses of their mechanical properties, antimicrobial characteristics and biodegradability. The results show that the use of small concentrations of the oils in 70TPS does not induce changes in the TPS structure according to the results of XRD, FTIR and TGA, with each essential oil and CE affecting the mechanical properties unevenly, although in all cases, antimicrobial activity was obtained, and the biodegradability of TPS in soil was not modified. An increase in the concentration of TT in 60TPS causes marked changes in the crystallinity of TPS, providing a greater modulus with a higher concentration of TT. Regardless of the amount of TT, all sheets maintain antimicrobial characteristics, and their biodegradation in soil is delayed with a higher oil content. |
Patrocinador/es: | This work was funded by “Convenio-Programa de Doctorado en Ingeniería Química de la Universidad Central del Ecuador (Quito, Ecuador), Certificación Presupuestaria No. 599” and the University of Alicante (Alicante, Spain). |
URI: | http://hdl.handle.net/10045/139672 |
ISSN: | 2073-4360 |
DOI: | 10.3390/polym16020180 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/polym16020180 |
Aparece en las colecciones: | INV - GTP3 - Artículos de Investigación sobre Procesado de Polímeros |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Lopez-Teran_etal_2024_Polymers.pdf | 6,12 MB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.