Procurement and Characterization of Biodegradable Films made from Blends of Eucalyptus, Pine and Cocoa Bean Shell Nanocelluloses

• Published in: Waste and biomass valorization Vol. 14; no. 10; pp. 3169 - 3181
• Main Authors: Souza, Lucas Oliveira, Santos, Ingrid Alves, de Carvalho Tavares, Iasnaia Maria, Sampaio, Igor Carvalho Fontes, Dias, Matheus Cordazzo, Tonoli, Gustavo Henrique Denzin, de Carvalho, Elisângela Elena Nunes, de Barros Vilas Boas, Eduardo Valério, Irfan, Muhammad, Bilal, Muhammad, de Oliveira, Julieta Rangel, Franco, Marcelo
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-10-2023; Springer Nature B.V
• Subjects: Biodegradability; Biodegradation; Cocoa; Cocoa beans; Engineering; Environment; Environmental Engineering/Biotechnology; Eucalyptus; Fibers; Gels; Industrial Pollution Prevention; Original Paper; Packaging; Permeability; Renewable and Green Energy; Soil permeability; Soil properties; Waste Management/Waste Technology; Water vapor; Nanomaterials; Agro-industrial co-products; Lignocellulose; L; Nanofibrils
• ISSN: 1877-2641; 1877-265X
• DOI: 10.1007/s12649-022-01762-5

The objective of this work was to investigate the effect of the addition of a nanocellulose gel from cocoa bean husk (NAC) on nanocellulose gels of
Eucalyptus
sp. and
Pinus
sp. The nanogels were obtained by mechanical defibrillation and the films by casting with different concentrations of NAC (0%, 20% and 35%). These were evaluated for morphology, thermogravimetric properties, barrier properties and soil biodegradability. NAC fibres presented the shortest lengths (30–80 µm), and their addition to the films reduced degradation at 350 °C by 17% but did not cause changes in water vapor permeability. NAC increased the solubility and biodegradability of the films, especially those of
Eucalyptus
sp. (35%). Therefore, the use of NAC proved to be a promising tool in the formulation of biodegradable packaging.
Graphical Abstract