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Levoglucosan (LG), 1,6-anhydro-β-d-glucopyranose, was produced by pyrolysis of cellulose. A response surface method was used to optimize the reaction parameters: X 1 , temperature; X 2 , time required for heating cellulose from room temperature to the designed pyrolysis temperature; and X 3 , vacuum, and a Box-Behnken design was employed for this purpose. The optimal temperature...
Conditions were optimized for the production of citric acid by a mutant A. niger CBX-209 using levoglucosan derived from pyrolysis of wastepaper as a sole carbon and energy source in a simple medium. The optimum concentration of levoglucosan and wheat bran in the medium was 8% and 3%, respectively, at an optimum initial pH between 5.5 and 6.0 at 35 o C. During fermentation, direct formation...
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