Bioplastics from orange processing byproducts by an ecoefficient hydrothermal approach

Autor(es)

Santos, Leticia B. ; Silva, Rodrigo D. ; Alonso, Jovan D. ; Brienzo, Michel ; Silva, Natalia C. ; Perotto, Giovanni ; Otoni, Caio G. ; Azeredo, Henriette M. C.

• Tipo de documento: Artigo Científico
• Fonte: FOOD PACKAGING AND SHELF LIFE; v. 38, p. 8-pg., 2023-06-28.

Resumo

Valorization of orange processing byproducts into bioplastics represents a sustainable alternative to virgin plastics for some applications. In this study, we obtained three films based on such biomass, namely, orange peel (OPe), orange pomace (OPo), and a combination of peel, pomace, and finisher pulp (OPPP). The byproducts were submitted to a "clean" hydrothermal pretreatment at 121 degrees C for 30 min at 1.2 kgf.cm-2. They were then added with glycerol, homogenized, cast into films, and dried. The OPe film presented higher water vapor permeability and poorer overall tensile properties compared to the other films, possibly due to the lower polysaccharide contents in the peel compared to those in the pomace. The OPPP film was considered the most interesting from a biorefinery perspective since it is made from three orange processing byproducts instead of only one. Moreover, all films exhibited high antioxidant and UV-absorption capacities, indicating their potential applicability as active packaging materials for oxidizable products. (AU)

• Processo FAPESP: 21/05092-7 - Filmes biodegradáveis a partir de subprodutos integrais do processamento de frutas
• Beneficiário: Henriette Monteiro Cordeiro de Azeredo
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 20/11104-5 - Utilização integral de resíduos provenientes do processamento de frutas para produção de filmes biopoliméricos absorvedores de luz UV para aplicação em embalagens biodegradáveis
• Beneficiário: Rodrigo Duarte Silva
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/22401-8 - Fruto-refinaria: processos de obtenção, métodos de caracterização e geração de produtos oriundos de resíduos da fruticultura
• Beneficiário: Nelson Ramos Stradiotto
• Modalidade de apoio: Auxílio à Pesquisa - Temático