| Texto completo | |
| Autor(es): |
Chagas, Mateus Ferreira
;
Ferreira, Gabriela Filipini
;
Gomes, Luisa Clemente Magalhaes
;
Zanphorlin, Leticia Maria
;
Martins, Liliana Zanelli Oliveira
;
Sampaio, Isabelle Lobo Mesquita
;
Hernandes, Thayse Aparecida Dourado
;
Junqueira, Tassia Lopes
;
Morais, Edvaldo Rodrigo
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CHEMICAL ENGINEERING JOURNAL; v. 469, p. 16-pg., 2023-06-09. |
| Resumo | |
The transportation sector significantly contributes to greenhouse gas emissions due to its reliance on fossil fuels. Biofuels offer a low-carbon alternative, particularly for long-haul transportation. Although few biosynthetic pathways reached technological maturity with commercial plants, recent literature shows a variety of laboratoryscale progresses targeting these biofuels. Early-stage sustainability assessments can help identify opportunities for metabolic engineering and process improvements toward more sustainable routes. This study evaluated the technical, economic, and environmental aspects of producing drop-in biofuels from sugarcane and soybean oil, considering fermentative and enzymatic processes. The results showed that sugarcane-based scenarios presented a better prospect and that integrating steps within microorganisms' metabolism in a cell factory concept had advantages over the cell-free enzymatic process. Biobased pathways, however, still require improvements to be competitive with catalytic-based alternatives. Recommendations were made to guide microorganism engineering, focusing on factors that restrain economic and environmental feasibility (e.g., inputs use). As a result, the improved biobased process could provide a hydrocarbon-based fuel with a minimum selling price (US$ 21.2 GJ-1) compatible with market prices and carbon intensity (25.1 gCO2eq MJ-1) similar to that from sugarcane ethanol, representing over 70 % reduction in greenhouse gas (GHG) emissions compared to fossil fuels. (AU) | |
| Processo FAPESP: | 19/08855-1 - Novos mecanismos de P450: uma estratégia enzimática para a produção de hidrocarbonetos renováveis |
| Beneficiário: | Leticia Maria Zanphorlin |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |