ANTIMICROBIAL FILMS CONSISTING OF SELENIUM NANOPARTICLES EMBEDDED IN CASSAVA STARCH MATRICES

Luciana Furlaneto Maia; Matheus Henrique Nogueira; Luana  de Carvalho; Márcia Cristina Furlaneto

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Trabajo

Título del Trabajo

ANTIMICROBIAL FILMS CONSISTING OF SELENIUM NANOPARTICLES EMBEDDED IN CASSAVA STARCH MATRICES

Autores

Luciana Furlaneto Maia
Matheus Henrique Nogueira
Luana de Carvalho
Márcia Cristina Furlaneto

Modalidad

Resúmen

Área temática

NTE - Nanotecnología y Tecnologías Emergentes

Fecha de publicación

01/12/2023

País de publicación

Brasil

Idioma de la Publicación

Espanhol

Página del Trabajo

https://www.even3.com.br/anais/ceapa2023/737010-antimicrobial-films-consisting-of-selenium-nanoparticles-embedded-in-cassava-starch-matrices

ISBN

978-65-272-0017-8

Palabras Clave

Enterococcus durans, green synthesis, nanocomposite film

Resumen

Introducción: In recent decades, environmental concerns and increasing consumer demand for healthy and nutritious food products with prolonged shelf life have made the food packaging industry pay more attention to the preparation of multifunctional biodegradable packaging films based on biopolymers containing active components such antimicrobial agents. Objectivos: In this study, films were fabricated from cassava starch (CS) and different concentrations of Selenium (Se) nanoparticles (Bio-SeNP) by the casting method. Métodologia: the Bio-SeNP was bio-synthesized from enterocin MF5 produced by Enterococcus durans. The Bio-SeNP was incorporated at concentrations of 1 and 2% (w/v) starch. Antimicrobial activity was tested against Listeria monocytogenes. The tests were carried out using the well diffusion and time kill technique in liquid culture medium. The structural scanning electron microscopy (SEM), EDX and antibacterial properties of the films were investigated. The color of the film added with Bio-SeNP was also analysed. Resultados y discusión: In the diffusion well test, there was an inhibition zone around the film containing Bio-SeNP at 1 and 2% concentration. At the time kill, it was observed that after 6 hours of the film in contact with the microorganisms, listerial growth significantly reduced. After 24 hours of incubation the reduction was accentuated. Both Bio-SeNP concentrations were efficient in controlling L. monocytogenes. SEM analysis from surface illustrated the film containing 1 and 2% bio-SeNP presented a smoother and more homogeneous surface when compared to the control film, which presented a rough surface. In the colorimetry test, the ¨L¨ value was statistically lower when compared to the control (film without Bio-SeNP), showing that it is a darker film; the values of ¨a¨ and ¨b¨ showed that it was a redder film, corroborating the color of the Bio-SeNP. Conclusiones: The film containing-Bio-SeNP had a good antimicrobial activity (1 and 2%) L. monocytogenes. Even with the color change, the film was transparent and with a homogeneous distribution of nanoparticles. Generally, the results indicated that the prepared nanocomposite films are promising antimicrobial bio-materials for food packaging.

Título del Evento: II Congreso Euroamericano de Procesos y Productos Alimentarios
Título de las Actas del Evento: Anales del II Congreso Euroamericano de Procesos y Productos Alimentarios
Nombre de la Editora: Even3
Medio de Divulgación: Meio Digital

Como citar

MAIA, Luciana Furlaneto et al.. ANTIMICROBIAL FILMS CONSISTING OF SELENIUM NANOPARTICLES EMBEDDED IN CASSAVA STARCH MATRICES.. In: Anales del II Congreso Euroamericano de Procesos y Productos Alimentarios. Anais...Diamantina(MG) Online, 2023. Disponible en: https//www.even3.com.br/anais/ceapa2023/737010-ANTIMICROBIAL-FILMS-CONSISTING-OF-SELENIUM-NANOPARTICLES-EMBEDDED-IN-CASSAVA-STARCH-MATRICES. Acceso en: 28/06/2025