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  • integration of first and second generation biofuels: fermentative hydrogen production from wheat grain and straw

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 564
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     integrating of lignocellulose-based and starch-rich biomass-based hydrogen production was investigated by mixing wheat straw hydrolysate with a wheat grain hydrolysate for improved fermentation. enzymatic pretreatment and hydrolysis of wheat grains led to a hydrolysate with a sugar concentration of 93.4 g/l, while dilute-acid pretreatment and enzymatic hydrolysis of wheat straw led to a hydrolysate with sugar concentration 23.0 g/l. wheat grain hydrolysate was not suitable for hydrogen production by the extreme thermophilic bacterium caldicellulosiruptor saccharolyticus at glucose concentrations of 10 g/l or higher, and wheat straw hydrolysate showed good fermentability at total sugar concentrations of up to 10 g/l. the mixed hydrolysates showed good fermentability at the highest tested sugar concentration of 20 g/l, with a hydrogen production of 82–97% of that of the control with pure sugars. mixing wheat grain hydrolysate with wheat straw hydrolysate would be beneficial for fermentative hydrogen production in a biorefinery.

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