BACKGROUND The selective lignin-degrading white-rot fungi are regarded to be the best lignin degraders and have been widely used for reducing the saccharification recalcitrance of lignocellulose. However, the biological delignification and conversion of lignocellulose in biorefinery is still limited. It is necessary to develop novel and more efficient bio-delignification systems. RESULTS Phys...

The optimization of an alkaline pretreatment process for the delignification of sugarcane bagasse (SCB) to enhance the subsequent enzymatic hydrolysis was performed according to the Doehlert uniform shell design. In this experimental design, the effect of two factors—potassium hydroxide (KOH) concentration and autoclaving time at 121 C (1 atm)—on cellulose, hemicellulose, or the total polysacch...

Abstract The fiber properties after oxygen delignification and kraft pulping were studied by looking into the chemical characteristics morphology. effect of two processes on fibers was evaluated compared over a wider kappa number range (from 62 down to15). Wide-angle X-ray scattering, nuclear magnetic resonance saturation point used to characterize network structure. Fiber morphology dislocatio...

Key features of the deep eutectic solvent-microwave assisted simultaneous extraction polyphenols and delignification pretreatment chestnut shell waste are presented.

Many kinetic studies of oxygen delignification have been reported in literature. In the past these studies were mostly performed in batch reactors whereby the caustic and dissolved oxygen concentrations are changing during the reaction. This makes it difficult to determine the reaction order of the different reactants in the rate expressions. Also the lignin content and cellulose degradation of...

Valorization of agri-food residues to produce bio-based platform chemicals will enhance the transition bio-economy era. To this end, a sustainable process has been developed for overall valorization grape stalks (GS) according circular approach, starting from lignin fraction further deal with cellulose-rich residue. This non-conventional protocol fully adheres green chemistry principles, exploi...

Residual biomass from agri-food production chain and forestry are available in huge amounts for further valorisation processes. Delignification is usually the crucial step of biofuels by fermentation as well conversion cellulose into high added-value compounds. High-intensity ultrasound (US) hydrodynamic cavitation (HC) have been widely exploited effective pretreatment techniques particular rec...

Abstract Corncob waste is not managed properly has the potential to environmental pollution. The purpose of this reasearch utilize corncob as a biomass into bioethanol. Process making bioethanol carried out in 4 steps, namely delignification, hydrolysis, fermentation, distillation. substrate were prepared mechanically become size powder 40 mesh. Delignification by fungi Dekkera Bruxellensis was...