| Texto completo | |
| Autor(es): |
Silva, Natalia Cristina
;
Silva, Maycon Jhony
;
Assis, Odilio Benedito Garrido
;
Martelli-Tosi, Milena
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | International Journal of Biological Macromolecules; v. 276, p. 8-pg., 2024-07-18. |
| Resumo | |
Acerola by-products (AB) have been used as raw material for extracting active compounds; however, there were no studies related to the use of the remaining acerola by-product (RAB) from this extraction. This portion still has fibers and can be used for the production of cellulose nanofibrils (CNFs); therefore, the main objective of this study was to evaluate the production of CNFs using AB and RAB and to investigate whether the extraction can be a treatment step before bleaching/acid hydrolysis. AB and RAB were characterized before and after being chemically treated (AB_CT and RAB_CT, respectively). The fibers extracted from the RAB showed the highest cellulose contents (RAB: 36.6 % and RAB_CT: 69.9 %), suggesting that the extraction process had an impact on by-product defibrillation. The same trends were observed for CNFs produced by acid hydrolysis. CNFs based on RAB showed higher yield (CNF_RAB: 25.2 % and CNF_RAB_CT: 24.2 %), higher crystallinity index (CNF_RAB: 68.3 % and CNF_RAB_CT: 71.7%) and higher thermal stability compared to CNFs extracted from AB and AB_CT. This study proved that it is feasible to use by-products after removing the active compounds for CNF production without other pre-treatments or in association with chemical treatment to obtain more crystalline and thermally stable CNFs. (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: | 22/03055-0 - Aproveitamento sustentável de fitoquímicos extraídos a partir de subprodutos agroindustriais: encapsulação, avaliação biológica e aplicação como aditivos alimentares |
| Beneficiário: | Milena Martelli Tosi |
| Modalidade de apoio: | Auxílio à Pesquisa - Projeto Inicial |