Autor(es)

Esposto, Bruno Stefani ; Tessaro, Larissa ; Aguilar, Guilherme Jose ; Sobral, Paulo Jose do Amaral ; Tapia-Blacido, Delia Rita ; Martelli-Tosi, Milena

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY; v. 59, n. 3, p. 10-pg., 2023-12-26.

Resumo

The main objective of this study was to extract phytochemicals from carrot by-product, encapsulate them in TPP chitosomes (consisting of liposome vesicles coated with chitosan cross-linked with sodium tripolyphosphate) and incorporate them into chitosan (Ch) films. Physicochemical, antioxidant and antimicrobial properties of films were evaluated. Three concentrations of TPP chitosome suspension were studied: 50%, 60% and 70%, designated TPPCh50, TPPCh60 and TPPCh70 respectively. Microscopy analyses showed that the particles modified the surface and internal structures of the Ch films, providing films with higher average roughness (Control: 12.6 +/- 1.8 nm vs. TPPCh70: 96.1 +/- 8.0 nm) and decreased gloss (Control: 34.1 +/- 3.9 GU vs. TPPCh70: 5.6 +/- 1.0 GU). Furthermore, the TPPCh films displayed decreased Ch intermolecular interactions, which produced less mechanically resistant (TS = 15.3 MPa), more elongable (EB = 47.9%), slightly more water-soluble (SI = 14.7%) and more water-vapour permeable (WVP = 7.54*10(-9) g/msPa) films, mainly at high phytochemical concentration (TPPCh70) as compared to the Control. TPPCh addition in the Ch film improved its antioxidant capacity (3.6 times greater) and UV/Vis light barrier property, but no significant antimicrobial activity was observed. In conclusion, TPPCh films could be used as packaging to preserve foods that are sensitive to oxidation. (AU)

• Processo FAPESP: 19/23171-1 - Aproveitamento de subprodutos obtidos após processamento de alimentos: extração de compostos fitoquímicos, encapsulação e aplicação em filmes / coberturas biodegradáveis
• Beneficiário: Milena Martelli Tosi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/18788-1 - Aplicação da microespectroscopia Raman e quimiometria na caracterização de microcarreadores poliméricos de compostos ativos e fotoativos
• Beneficiário: Milena Martelli Tosi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/22502-4 - Estudo da digestão in vitro de TPP-quitossomas encapsulando compostos fitoquímicos extraídos de subproduto de cenoura
• Beneficiário: Bruno Stefani Esposto
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Mestrado
• Processo FAPESP: 19/05511-0 - Aproveitamento de subproduto obtido após processamento de cenouras: extração de compostos fitoquímicos, encapsulação e aplicação em filmes biodegradáveis
• Beneficiário: Bruno Stefani Esposto
• Modalidade de apoio: Bolsas no Brasil - Mestrado