Beyond Saccharomyces: Exploring the Bioethanol Potential of Wickerhamomyces anomalus and Diutina rugosa in Xylose and Glucose Co-Fermentation

Fermentation, Journal Year: 2025, Volume and Issue: 11(4), P. 204 - 204

Published: April 9, 2025

Efficient co-fermentation of glucose and xylose remains a critical hurdle in second-generation bioethanol production. In this study, we evaluated two non-Saccharomyces yeasts—Wickerhamomyces anomalus UEMG-LF-Y2 Diutina rugosa UEMG-LF-Y4—under mixed-sugar conditions. D. exhibited superior metabolism ethanol productivity, achieving maximum volumetric productivity (QP) 0.55 g/L·h medium containing 20 g/L 40 xylose. Its highest yield (YP/S) reached 0.45 g EtOH/g sugar, comparable to results from engineered Saccharomyces cerevisiae strains. By contrast, W. displayed lower yields (0.24–0.34 g/g) greater sensitivity catabolite repression induced by 2-deoxyglucose (2-DG). Xylose consumption exceeded 80% high-xylose media, while left residual under all tested A strong inverse correlation (r < −0.98) between accumulation uptake was observed, especially for anomalus, indicating ethanol-induced inhibition as key challenge. These findings highlight the potential robust platform lignocellulosic processes, whereas may benefit further metabolic or process optimizations. Future research should address tolerance, inhibitory byproducts, large-scale feasibility fully exploit these strains

Language: Английский

Evaluating the Performance, Combustion, and Emission Characteristics of Decanol-Enhanced Sterculia foetida Biodiesel in Diesel Engines

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104936 - 104936

Published: April 1, 2025

Language: Английский