This work provides an assessment on the fractionation of Eucalyptus globulus wood by sequential stages of autohydrolysis (to cause the solubilization of hemicelluloses) and organosolv pulping (to dissolve lignin, leaving solids enriched in cellulose). With this approach, valuable products (hemicellulose-derived saccharides, sulphur-free lignin fragments and cellulosic substrates with low conten...

Three wild-type white rot fungi and two cellulase-less mutants developed from Phanerochaete chrysosporium K-3 (formerly Sporotrichum pulverulentum) were tested for their ability to delignify grass cell walls and improve biodegradation by rumen microorganisms. Fungal-treated and control stems of Bermuda grass were analyzed for their content of ester- and ether-linked aromatics by using alkali ex...

Two woody legumes species (Chamaecytisus proliferus L.F. ssp. palmensis and Leucaena diversifolia) were evaluated for integrally exploitation. The raw material was subjected to autohydrolysis under variable operating conditions which provided a liquid phase rich in hemicellulose oligomers and a solid phase that was used to obtain cellulose pulp and paper sheets by using organosolv procedures. T...

In the near future, sustainable and efficient biorefineries would be essential for production of commodity chemicals high-added value compounds. Therefore, in this work, six scenarios differing on delignification steps cellulose conversion routes were assessed via Life Cycle Assessment methodology order to study environmental impacts derived from an abundant agricultural residue (almond shells)...

Low- and middle-income countries have tremendous potential for renewable energy production, including production of carbon from locally prolific crops. In this work, bamboo endemic to West Africa (Bambusa vulgaris) was studied as a feedstock the sugars gateway local biofuels bio-based chemical products. The effectiveness delignification amorphization pretreatments evaluated, with observation th...

This study targeted to optimize process factors using response surface methodology and determining their effect on delignification cellulose recovery. Optimization of pretreatment conditions with desirability value 0.828 was done at temperature (A) 150°C, contact time (B) 2 h, liquid-to-solid ratio (LSR) (C) 15 ml/g. The sample soaked in an aqueous ethanol solution (48% ethanol). Chemical compo...