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Hemicellulose separation/removal from cellulosic fibers is critical for manufacturing high-purity cellulose (dissolving pulp). In this communication, a combined system of using both urea and NaOH was studied to enhance the separation/removal of hemicellulose from a softwood sulfite dissolving pulp. The urea/NaOH treatment significantly improves the hemicellulose removal. With a 1% urea concentration...
Cellulase immobilization is an important issue for cellulose hydrolysis in bioethanol production. In this study, Fe3O4 nanoparticles were synthesized using a coprecipitation method and were coated with chitosan. Glutaraldehyde was used as cross-linking reagent for cellulase immobilization. The morphology, structure, and related physical and chemical properties of the supports were studied by X-ray...
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