| Title | Valorizing brewer's spent grain: A sequential pathway of supercritical extraction, hydrolysis, and fermentation |
|---|---|
| ID_Doc | 23542 |
| Authors | Lisci, S; Tronci, S; Grosso, M; Hajrizaj, R; Sibono, L; Karring, H; Gerganov, A; Maschietti, M; Errico, M |
| Title | Valorizing brewer's spent grain: A sequential pathway of supercritical extraction, hydrolysis, and fermentation |
| Year | 2024 |
| Published | |
| Abstract | The possibility of brewers spent grain exploitation through a sequence of supercritical fluid extraction, acid hydrolysis, and fermentation was considered. All steps have been optimized within an interval of operative conditions, using specific designs of the experiments, and modeled through the Response Surface Methodology. The supercritical fluid extraction was optimized in the pressure range 20-40 MPa and temperature 40-100 degrees C. A fractional factorial design was applied considering the sulfuric (0.065-0.37 M) and nitric (0.01-0.5 M) acid concentration, and the liquid-solid ratio (8-12 w/w %) as independent factors for the hydrolysis step. The fermentation process of pre-treated BSG was also optimized using the Box-Behnken design with temperature (25-37 degrees C), inoculum volume (5-15 v/v %), and pH (4.5-6.5) as investigated factors. At optimal conditions, the overall process led to an ethanol yield of 82 % evaluated with respect to the theoretical one. Moreover, all the supercritical fluid extracts were richer in phenolic compounds than the ones obtained by the traditional Soxhlet method. |
| https://doi.org/10.1016/j.ces.2023.119620 |
Similar Articles
| ID | Score | Article |
|---|---|---|
4049
|
Allegretti, C; Bellinetto, E; D'Arrigo, P; Griffini, G; Marzorati, S; Rossato, LAM; Ruffini, E; Schiavi, L; Serra, S; Strini, A; Tessaro, D; Turri, S Towards a Complete Exploitation of Brewers' Spent Grain from a Circular Economy Perspective(2022)Fermentation-Basel, 8, 4 | |
| 24601
|
Agrawal, D; Gopaliya, D; Willoughby, N; Khare, SK; Kumar, V Recycling potential of brewer's spent grains for circular biorefineries(2023) | |
| 13832
|
Zhang, J; Perez-Gavilan, A; Neves, AC Optimization of Solid-State Fermentation Conditions With Mixed Strains Using Box-Behnken Design for the Production of brewers' Spent Grain Protein(2024) | |
| 6433
|
Lech, M; Labus, K The methods of brewers' spent grain treatment towards the recovery of valuable ingredients contained therein and comprehensive management of its residues(2022) | |
| 21516
|
Serra, S; D'Arrigo, P; Rossato, LAM; Ruffini, E Microbial Fermentation of the Water-Soluble Fraction of Brewers' Spent Grain for the Production of High-Value Fatty Acids(2023)Fermentation-Basel, 9.0, 12 | |
| 26966
|
Sganzerla, WG; Vigano, J; Castro, LEN; Maciel-Silva, FW; Rostagno, MA; Mussatto, SI; Forster-Carneiro, T Recovery of sugars and amino acids from brewers' spent grains using subcritical water hydrolysis in a single and two sequential semi-continuous flow-through reactors(2022) | |
| 20070
|
Schmidt, AR; Dresch, AP; Junior, SLA; Bender, JP; Treichel, H Applications of Brewer's Spent Grain Hemicelluloses in Biorefineries: Extraction and Value-Added Product Obtention(2023)Catalysts, 13, 4 | |
| 10177
|
Pérez-Barragán, J; Martínez-Fraile, C; Muñoz, R; Quijano, G; Maya-Yescas, R; León-Becerril, E; Castro-Muñoz, R; García-Depraect, O Brewery spent grain valorization through fermentation: Targeting biohydrogen, carboxylic acids and methane production(2024) | |
| 7250
|
Umego, EC; Barry-Ryan, C Review of the valorization initiatives of brewing and distilling by-products(2023) |