| Full text | |
| Author(s): |
Scopel, Eupidio
[1]
;
dos Santos, Luana Cristina
[2]
;
Bofinger, Matheus Rodrigues
[1]
;
Martinez, Julian
[2]
;
Rezende, Camila Alves
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Chem, Phys Chem Dept, UNICAMP, BR-13083970 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Food Engn, Food Engn Dept, UNICAMP, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | JOURNAL OF CLEANER PRODUCTION; v. 274, NOV 20 2020. |
| Web of Science Citations: | 2 |
| Abstract | |
The replacement of fossil fuels with renewable energy sources depends on the adoption of greener technologies and integrated processes within a biorefinery. In this study, organic molecules with high added value and fermentable sugars were obtained by combined extractions and enzymatic hydrolysis from elephant grass leaves and stems. Fatty acids, sterols, alcohols and phenolics were obtained in different concentrations using green extractions with supercritical carbon dioxide and pressurized liq-uids (PLE). The extract composition was mainly related to the solvent polarity and the best yield was achieved using water and ethanol as solvents in PLE (7.5% and 7.7% for leaves and stems, respectively). The extractions alone, without any other treatment, were able to increase the enzymatic digestibility of leaves by 50% due to the increase in the substrate wettability. The extractions also did not interfere with the biomass morphology, which allows the posterior use of the substrate for other applications. The results presented herewith showed that adopting extractions as the first step in an ethanol biorefinery is a promising way to achieve the biomass valorization and full use, together with more sustainable processes to obtain chemicals for the food, cosmetic and pharmaceutical industries. (C) 2020 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 16/13602-7 - Study on strategies to allow the integral use of lignocellulosic biomass |
| Grantee: | Camila Alves de Rezende |
| Support Opportunities: | Program for Research on Bioenergy (BIOEN) - Regular Program Grants |
| FAPESP's process: | 17/23670-2 - Biorefinery for the recovery of by-products from passion fruit processing through high pressure technologies |
| Grantee: | Julian Martínez |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/11245-5 - Fractionation of passion fruit (Passiflora edulis) by-products extracts by reducing pressure using supercritical CO2 |
| Grantee: | Luana Cristina dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 18/23769-1 - Preparation and applications of nanostructures from plant biomass |
| Grantee: | Camila Alves de Rezende |
| Support Opportunities: | Regular Research Grants |