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Acid hydrolysis of the hemicellulosic fraction of eucalyptus chips was influenced by the following parameters: temperature, acid concentration, residence and immersion time. The concentrations of sugars (glucose, xylose, arabinose) and acetic acid varied systematically for all hydrolysis conditions tested. The fermentation of different types of hydrolysate showed distinct behaviour due to the differences...
Two-step acid hydrolysis studies were performed on various types of low-grade biomass, such as bakery waste, grain dust, wood chips and wheat straw. These wastes contain predominantly starch, cellulose, hemicellulose, or combinations of these carbohydrates. The hydrolysis conditions for each step were determined by using pure starch and cellulose as substrates. Starch and hemicellulose were hydrolyzed...
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