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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Eco-friendly gelatin films with rosin-grafted cellulose nanocrystals for antimicrobial packaging

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Leite, Liliane S. F. [1, 2, 3] ; Bilatto, Stanley [2] ; Paschoalin, Rafaella T. [4] ; Soares, Andrey C. [2] ; Moreira, V, Francys K. ; Oliveira, Jr., Osvaldo N. [4] ; Mattoso, Luiz H. C. [1, 2] ; Bras, Julien [3, 5]
Total Authors: 8
[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn PEGCEM, BR-13565905 Sao Carlos - Brazil
[2] Embrapa Instrumentacao, Natl Nanotechnol Lab Agribusiness, XV Novembro St 1452, BR-13560979 Sao Carlos - Brazil
[3] Univ Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38400 Grenoble - France
[4] Univ Sao Paulo, Sao Carlos Inst Phys, BR-13560970 Sao Carlos - Brazil
[5] Nestle Res Ctr, CH-1000 Lausanne - Switzerland
Total Affiliations: 5
Document type: Journal article
Source: International Journal of Biological Macromolecules; v. 165, n. B, p. 2974-2983, DEC 15 2020.
Web of Science Citations: 6

We report on gelatin films incorporating rosin-grafted cellulose nanocrystals (r-CNCs), which fulfill the most relevant requirements for antimicrobial packaging applications. Transparent gelatin/r-CNCs bionanocomposite films (0.5-6 wt% r-CNCs) were obtained by solution casting and displayed high UV-barrier properties, which were superior to the most used plastic packaging films. The gelatin/r-CNCs films exhibited a moderate water vapor permeability (0.09 g mm/m(2) h kPa), and high tensile strength (40 MPa) and Young's modulus (1.9 GPa). The r-CNCs were more efficient in improving the optical, water vapor barrier and tensile properties of gelatin films than conventional CNCs. Grafting of rosin on CNCs resulted in an antimicrobial nanocellulose that inhibited the growth of Staphylococcus aureus and Escherichia coli. The antibacterial properties of r-CNCs were sustained in the gelatin films, as demonstrated by agar diffusion tests and proof-of-principle experiments involving cheese storage. Overall, the incorporation of r-CNCs as active fillers in gelatin films is a suitable approach for producing novel eco-friendly, antimicrobial packaging materials. (c) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 18/10899-4 - Utilization of residual lignocellulosic biomass from 2G ethanol processing to obtain nanocellulose via enzymatic route
Grantee:Stanley Endrigo Bilatto Rodrigues
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 17/18725-2 - Hybrid core-shell and Janus nanofibers obtained by solution blow spinning
Grantee:Rafaella Takehara Paschoalin
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/00278-2 - Functionalization, characterization and properties evaluation of cellulose nanocrystals and their bionanocomposites based on protein
Grantee:Liliane Samara Ferreira Leite
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis
Grantee:Osvaldo Novais de Oliveira Junior
Support type: Research Projects - Thematic Grants
FAPESP's process: 18/18953-8 - Nanostructured films applied in microfluidic biosensors to mastitis detection
Grantee:Andrey Coatrini Soares
Support type: Scholarships in Brazil - Post-Doctorate