Author(s):
Vieira, Suellen Rocha ; da Silva, Jania Betânia Alves ; Druzian, Janice Izabel ; de Jesus Assis, Denílson ; Mussagy, Cassamo Ussemane [UNESP] ; Pereira, Jorge Fernando Brandão ; Santos-Ebinuma, Valéria Carvalho [UNESP] ; Lemos, Paulo Vitor França ; Correia, Paulo Romano ; de Souza Ferreira, Ederlan ; de Souza, Carolina Oliveira
Date: 2022
Persistent ID: http://hdl.handle.net/11449/223667
Origin: Oasisbr
Subject(s): Cassava starch; Cellulose; Chitosan; Nanoparticles; Protic ionic liquids
Description
Made available in DSpace on 2022-04-28T19:52:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01
Bionanocomposites have garnered wide interest from the packaging industry as a biocompatible alternative to non-biodegradable petroleum-based synthetic materials. This study presents a simple and eco-friendly alternative to produce cellulose nanoparticles using a protic ionic liquid, and the effects of their incorporation in cassava starch and chitosan films are evaluated. Bionanocomposite films are prepared using the solvent casting method and are characterized using X-ray diffraction, Fourier transform infrared spectroscopy, zeta potential, thermogravimetric analysis, and transmission electron microscopy. The achieved yield of cellulose nanoparticles is 27.82%, and the crystalline index is 67.66%. The nanoparticles’ incorporation (concentration from 0.1 to 0.3% wt) results in a progressive reduction of water vapor permeability up to 49.50% and 26.97% for starch and chitosan bionanocomposite films, respectively. The starch films with 0.1% cellulose nanoparticles exhibit significantly increased flexibility compared to those without any addition. The nanoparticles’ incorporation in chitosan films increases the thermal stability without affecting the mechanical properties. The cellulose nanoparticles obtained using protic ionic liquid, as an alternative pathway avoiding the classic acid hydrolysis can be a simple, sustainable, and viable method to produce bionanocomposites with tailored properties, useful for applications in the packaging industry. Graphical Abstract: [Figure not available: see fulltext.]
Graduate Program in Food Science (PGAli) - College of Pharmacy Federal University of Bahia (UFBA), Barão de Jeremoabo Street, 147, Bahia
Center for Exact and Technological Sciences Collegiate of Mechanical Engineering Federal University of Recôncavo da Bahia (UFRB), Rui Barbosa, 710, BA
Graduate Program in Chemical Engineering (PPEQ) Polytechnic School Federal University of Bahia (UFBA), Bahia
Department of Bromatological Analysis College of Pharmacy Federal University of Bahia (UFBA), Barão de Jeremoabo Street, 147, Bahia
Graduate Program in Biotechnology-Northeast Biotechnology Network (RENORBIO) Federal University of Bahia (UFBA)
School of Exact and Technological Sciences University Salvador (UNIFACS), Av. Juracy Magalhães Júnior, S/N - Rio Vermelho, BA
Department of Engineering of Bioprocesses and Biotechnology College of Pharmaceutical Sciences São Paulo State University (UNESP), SP
Department of Chemical Engineering University of Coimbra
Department of Engineering of Bioprocesses and Biotechnology College of Pharmaceutical Sciences São Paulo State University (UNESP), SP
