| Texto completo | |
| Autor(es): |
Número total de Autores: 4
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| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Lorena Sch Engn, Dept Biotechnol, Nanobiotechnol & Bioprod Lab, Lorena, SP - Brazil
[2] Univ Sao Paulo, Lorena Sch Engn, Dept Biotechnol, Biochem Lab, Lorena, SP - Brazil
Número total de Afiliações: 2
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| Tipo de documento: | Artigo Científico |
| Fonte: | Bioresource Technology; v. 342, DEC 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
An integrated biorefining strategy was applied to fractionate Sugarcane bagasse (SCB) into its major constituents, enabling high-yield conversion of the fractionated materials into high-value coproducts alongside cellulosic ethanol. Pilot-scale steam explosion produced a hydrolysate rich in low molecular weight xylooligosaccharides that had a high in vitro efficacy as a prebiotic towards different bifidobacteria. Lignin recovered after alkaline treatment of the steam-exploded SCB was converted into uniform spherical lignin nanoparticles (11.3 nm in diameter) by a green mechanical method. The resulting cellulose was hydrolyzed at 17.5% (w/v) consistency and low enzyme loading (17.5 mg/g) to yield a pure glucose hydrolysate at a high concentration (100 g/L) and a cellulosic solid residue that was defibrillated by disc ultra-refining into homogeneous cellulose nanofibrils (20.5 nm in diameter). Statistical optimization of the cellulosic hydrolysate fermentation led to ethanol pro-duction of 67.1 g/L, with a conversion yield of 0.48 g/g and productivity of 1.40 g/L.h. (AU) | |
| Processo FAPESP: | 15/02862-5 - NANOCEL - desenvolvimento de preparos enzimáticos para o preparo de nanoceluloses por um processo biohídrido |
| Beneficiário: | Valdeir Arantes |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Jovens Pesquisadores |