Morphological and physical properties of nano-biocomposite films based on collagen loaded with laponite (R)

Author(s)

Valencia, German Ayala ^{[1, 2]} ; Luciano, Carla Giovana ^[2] ; Lourenco, Rodrigo Vinicius ^[2] ; Quinta Barbosa Bittante, Ana Monica ^[2] ; do Amaral Sobral, Paulo Jose ^[2]

Affiliation

^[1] Univ Fed Santa Catarina, Dept Chem & Food Engn, BR-88040900 Florianopolis, SC - Brazil

^[2] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Food Engn, Pirassununga, SP - Brazil

• Document type: Journal article
• Source: FOOD PACKAGING AND SHELF LIFE; v. 19, p. 24-30, MAR 2019.
• Web of Science Citations: 7

Abstract

The objective of the present study was to analyze the effects of laponite concentrations (C-Lap) on surface morphology and physical properties of nano-biocomposite films based on collagen loaded with laponite. Films microstructure, thickness, moisture content (MC), gloss, color, opacity, crystallinity, chemical structure, thermal and mechanical properties (MP), water vapor permeability (WVP), and the water contact angle (WCA) were determined. A considerable impact of C-Lap on the surface roughness of the nano-biocomposite films was observed, without effect on its thickness, MC, gloss, color, opacity, MP, WVP, and WCA results. Laponite platelets were exfoliated into collagen chains, provoking a reduction in helix-coil formation, leading to a decrease in the enthalpy melting values of the nano-biocomposite films. This research reports for the first time information regarding films based on collagen loaded with laponite with potential use as food packaging. (AU)

• FAPESP's process: 12/24047-3 - Physical properties of films based in biopolymers reinforced with laponite
• Grantee: Germán Ayala Valencia
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 13/07914-8 - FoRC - Food Research Center
• Grantee: Bernadette Dora Gombossy de Melo Franco
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC