TY  - JOUR
AU  - Araújo, Nathália Dias
AU  - de Oliveira Rodrigues, Patrísia
AU  - Borges, Mariana Fornazier
AU  - Corrêa, Anderson Gabriel
AU  - Pompêu, Gabriela Ciribelli Santos
AU  - Baffi, Milla Alves
AU  - Pasquini, Daniel
PY  - 2026
DA  - 2026/08/24
TI  - Ethanol-Based Organosolv Pretreatment for Enhancing Enzymatic Hydrolysis of Corn Straw, Corn Cob, Sugarcane Straw, and Sugarcane Bagasse
JO  - Journal of Energy and Power Technology
SP  - 014
VL  - 08
IS  - 03
AB  - Organosolv pretreatment is an attractive approach to disrupt the recalcitrant structure of lignocellulosic biomass from agroindustrial wastes, aiming to facilitate its bioconversion into valuable bioproducts. This study investigated the ability of an ethanol/water (1:1 v/v) organosolv pretreatment to improve the enzymatic digestibility of sugarcane bagasse (SB), sugarcane straw (SS), corn straw (CS), and corn cob (CC) for the production of reducing sugars and monosaccharides, aiming at future applications in bioethanol production and integrated biorefineries. After pretreatment, substantial hemicellulose and partial lignin removal were observed, with high preservation of the cellulosic fraction, mainly in SB and CC (56.11% and 55.27%, respectively). Morphological and structural alterations, such as increased porosity and crystallinity, were also detected and attributed to the removal of amorphous regions from the pretreated biomasses, with the most prominent changes observed in CC. These modifications demonstrated the key role of organosolv pretreatment in enhancing enzymatic saccharification, thereby increasing conversion yields. The maximum release of TRS and glucose was recorded in CC (44.58 and 40.14 g/L, respectively), with high bioconversion rates of cellulose to glucose (65.42%) and hemicellulose to xylose (61.86%) after 48 h of hydrolysis. These findings highlight the potential of ethanol-based organosolv pretreatment as a sustainable, environmentally friendly, and effective strategy for enhancing biomass conversion. Furthermore, the Life Cycle Assessment (LCA) of the pretreatment and enzymatic hydrolysis processes revealed relatively moderate environmental impacts, with energy consumption as the major contributor, driven by the energy source adopted in the system.
SN  - 2690-1692
UR  - https://doi.org/10.21926/jept.2603014
DO  - 10.21926/jept.2603014
ID  - Araújo2026
ER  -