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  • rational approach to optimize cellulase mixtures for hydrolysis of regenerated cellulose containing residual ionic liquid

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 675
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     for the efficient production of glucose for platform chemicals or biofuels, cellulosic biomass is pretreated and subsequently hydrolyzed with cellulases. although ionic liquids (il) are known to effectively pretreat cellulosic biomass, the hydrolysis of il pretreated biomass has not been optimized so far. here, we present a semi-empirical model to rationally optimize the hydrolysis of pretreated α-cellulose – regenerated from il and containing residual il from the pretreatment. first, the influence of the il mmim dmp on the individual cellulases endoglucanase i, cellobiohydrolase i and β-glucosidase was investigated. second, an enzyme loading-dependent model was developed to describe kinetics for the individual cellulases and cellulase mixtures. third, this model was used to optimize the cellulase mixture for the efficient hydrolysis of regenerated cellulose containing residual il. finally, we could significantly increase the initial hydrolysis rate in 10% (v/v) mmim dmp by 49% and the sugar yield by 10% points.

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