| Texto completo | |
| Autor(es): |
Florencio, Camila
;
Brondi, Mariana G.
;
Silva, Maycon Jhony
;
Bondancia, Thalita J.
;
Elias, Andrew M.
;
Martins, Maria Alice
;
Farinas, Cristiane S.
;
Ribeiro, Caue
;
Mattoso, Luiz H. C.
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | International Journal of Biological Macromolecules; v. 282, p. 12-pg., 2024-12-01. |
| Resumo | |
Although the production of carboxymethylcellulose from different raw materials is commercial, its preparation from agro-industrial residues has still been poorly explored in terms of performance, cost-effectiveness, and sustainability. Here, sugarcane bagasse was used as raw material for the carboxymethylcellulose (CMCb) synthesis within the biorefinery context. Sequential treatments were used for the removal of hemicellulose and lignin and the isolation of cellulose, whose conversion into CMCb was carried out through treatments with NaOH and monochloroacetic acid (MCA). The chemical modifications led to a CMCb with a substitution degree of 0.44, purity of 71.3 %, and 32 % crystallinity. Our residue-based CMCb was adequate for microorganism encapsulation, a high-value application, promoting viable conidia after 5 months of storage in equivalent conditions of high-purity, commercial CMC. Our findings show a route for the preparation of valuable polysaccharides from waste in future biorefineries, which, depending on their characteristics, can be applied in different processes. Here we use them for the encapsulation of a bioagent, although they can easily be used in other applications such as packaging and coating. (AU) | |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |
| Processo FAPESP: | 19/05159-4 - Desenvolvimento de um bioagente encapsulado com polímeros produzidos a partir de bagaço de cana-de-açúcar para aplicação na agricultura |
| Beneficiário: | Camila Florencio Pereira Lopes |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |