It has been found that polyoxometalates (POMs) can act as mediators in the electrochemical oxidation of lignin in pulps. An electrochemical cell, with a Nafion membrane separating the anode and cathode compartments, was used in the delignification experiments. A softwood kraft pulp was placed in the anode compartment with a buffered 0.01M solution of the polyoxometalate Na5[SiVW11O40]. During e...

Enzymatic hydrolysis of pre-treated wheat straw has been studied. Several additives have checked as potential improvers glucose yield in the enzymatic hydrolysis, trying to avoid cellulases inhibition by lignin a cause decrease saccharification rate lignocellulosic biomass. Non-ionic surfactants, such Tween 80 (poly(oxyethylene)20-sorbitan-monooleate) and polyethylene glycol-6000, proteins, bov...

The present study was conducted to analyze the effect of three different organicsolvents (Ethanol, Methanol and Acetone) on delignification rice husk (basmati rice). Two differentconcentrations (50% and70%) temperatures (160° C, 180° C 200° C) wereused. major experimental groups were designed, autocatalytic (without catalyst) catalytic(with 1% sulphuric acid as catalyst), each with subgroups re...

Delignification pretreatment with alkali under various conditions (25–160 °C for 1–12 h) or sodium chlorite at 75 4 h was applied to improve the enzymatic digestibility of sugarcane bagasse by removing hemicellulose and lignin. Compared elimination hemicellulose, delignification contributed more in achieving a higher glucose yield. In addition, characterization untreated pretreated conducted de...

A large amount of cotton stalk waste biomass with high cellulose content are incinerated by the farmers causing air pollution. The high cellulose content of cotton stalks can be converted to fermentable sugars by fungal delignification pretreatment of lignocellulosic biomass and enzymatic saccharification. The effect of particle size, moisture content, and media supplements was studied for deli...