Hydrodynamic Cavitation-Assisted Photo-Fenton Pretreatment and Yeast Co-Culture as Strategies to Produce Ethanol and Xylitol from Sugarcane Bagasse
Year: 2025
Type: article
Abstract: This study explored innovative approaches to produce ethanol and xylitol from sugarcane bagasse using a hydrodynamic cavitation-assisted photo-Fenton process as the pretreatment, and yeast co-culture for hydrolysate fermentation. Pretreatment conditions were optimized (20 mg/L of iron sulfate, pH 5.0, and reaction time of 14 min) resulting in glucan and xylan hydrolysis yields of 96% and 89%, respectively. The hydrolysate produced under these conditions was fermented using a co-culture of Saccharomyces cerevisiae IR2 (an ethanol-producing strain) and Candida tropicalis UFMGBX12 (a xylitol-producing strain). Optimal co-culture conditions consisted of using an inoculum concentration of 1.5 g/L for each yeast strain. After 36 h of fermentation, ethanol and xylitol concentrations reached 20 g/L and 13 g/L, respectively. These results demonstrate the potential of combining hydrodynamic cavitation-assisted photo-Fenton pretreatment with co-culture fermentation to simultaneously produce ethanol and xylitol. This strategy presents a promising approach for enhancing the efficiency of lignocellulosic biorefineries.
Source: Catalysts
Authors: Carina Aline Prado, Ana Júlia E. B. da Silva, Paulo A. F. H. P. Fernandes, Vinicius P. Shibukawa, Fanny M. Jofre, Bruna G. Rodrigues, Silvio Silvério da Silva, Solange I. Mussatto, Júlio César Santos
Institutions: Universidade de São Paulo, Technical University of Denmark
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,654
Awards: G1223194221, G1390139016, G1541722821, G1851061249, G2629378197, Alternative technologies for ethanol and pullulan production in sugarcane bagasse biorefineries using hydrodynamic cavitation reactors and systems for simultaneous hydrolysis and fermentation, G3483107946, Decarbonization of transport for the benefit of society: enhancing sustainability with the integration of biochemical and thermal routes in the integral use of biomass, G3942235227, G5071731313, G5473879402, G6125369472, G6358227860, From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales, G7771026470, G7898710161
OpenAlex ID: W4409771629