Data/hora: 22/09/2024 03:05:42

Biblioteca(s): 	Embrapa Instrumentação.	
Data corrente: 	14/05/2024	
Data da última atualização: 	11/06/2024	
Autoria: 	SILVA, R. D.; PACHECO, T. F.; SANTI, A. D. de; MANARELLI, F.; BOZZO, B. R.; BRIENZO, M.; OTONI, C. G.; AZEREDO, H. M. C. de.	
Afiliação: 	THALYTA FRAGA PACHECO, CNPAE; UNIVERSITY OF SAO PAULO (USP); FEDERAL UNIVERSITY OF SAO CARLOS (UFSCAR); FEDERAL UNIVERSITY OF SAO CARLOS (UFSCAR); SAO PAULO STATE UNIVERSITY (UNESP); FEDERAL UNIVERSITY OF SAO CARLOS (UFSCAR); HENRIETTE MONTEIRO C DE AZEREDO, CNPDIA.	
Título: 	From bulk banana peels to active materials: Slipping into bioplastic films with high UV-blocking and antioxidant properties.	
Ano de publicação: 	2024	
Fonte/Imprenta: 	Journal of Cleaner Production, v. 438, 140709, 2024.	
ISSN: 	0959-6526	
DOI: 	https://doi.org/10.1016/j.jclepro.2024.140709	
Idioma: 	Inglês	
Conteúdo: 	ABSTRACT Bananas are among the most produced fruits globally, and their industry generates substantial amounts of peels, which are currently underutilized. Therefore, a simple process was proposed to fully convert banana peel powder (BPP) into bioplastic films using mild pretreatments. The influence of the following variables on film performance was investigated: the type of BPP (unblanched versus blanched), the pretreatment solvent (water – i.e., hydrothermal pretreatment, HTP – or sulfuric acid solution – i.e., dilute acid pretreatment, DAP), and the addition or not of carboxymethyl cellulose (CMC) in the films. The tensile properties of the bioplastics were primarily affected by the presence of CMC, with the films containing 20 wt% of this biopolymer achieving a tensile strength up to 16 MPa. The water vapor permeability was not influenced by any of the studied variables. In contrast, the water contact angle was primarily affected by the pretreatment employed, with all films prepared by HTP displaying a hydrophobic surface. The UV-shielding properties of the materials were mainly influenced by the type of BPP, and all films blocked at least 98% of UV radiation. The antioxidant activity was influenced primarily by the type of BPP, as blanching banana peels helped preserve it. These films are, therefore, promising materials for active food packaging applications, which could contribute to a transition toward a circular bioeconomy.	
Palavras-Chave: 	Banana peel; Bioplastic film; Hydrothermal pretreatment; UV-Blocking.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Instrumentação (CNPDIA)	
Exemplares: 	CNPDIA - (18424-1) - UPC - AP - DD - PROCI.24/30 -  - 2024/47 - DIS