| Texto completo | |
| Autor(es): |
Sandri, Juliana P.
;
Milessi, Thais S.
;
Zangirolami, Teresa C.
;
Mussatto, Solange I.
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR; v. N/A, p. 15-pg., 2023-08-08. |
| Resumo | |
The use of all sugars from biomass fractionation - that is, hexoses and pentoses - is essential to develop feasible processes in a biorefinery context. Hexoses are converted into different products by most microorganisms. The main issue is the conversion of pentoses, especially when mixed with hexoses. Improving sugar conversion in co-fermentation is a major challenge, which was explored in this work. Co-culture using Saccharomyces cerevisiae and evolved Kluyveromyces marxianus strains was evaluated by screening using 24 deep-well plates. Glucose depletion and 83% of xylose conversion were achieved with supplemented hemicellulosic hydrolysate medium (medium volume corresponding to 2/5 of deep-well volume), and initial cell concentrations of 2.5 g L-1 for each yeast, incubated at 150 rpm. The screening strategy provided reliable data that confirmed the co-culture as a promising approach for the co-assimilation of biomass-derived sugars. The importance of aeration control for effective xylose assimilation was also pointed out. (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 |