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  • chrysoporthe cubensis: a new source of cellulases and hemicellulases to application in biomass saccharification processes

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 696
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    the plant pathogenic fungus chrysoporthe cubensis was cultivated under solid state employing different substrates and the highest endoglucanase (33.84 u g−1), fpase (2.52 u g−1), β-glucosidase (21.55 u g−1) and xylanase (362.38 u g−1) activities were obtained using wheat bran as carbon source. cellulases and xylanase produced by c. cubensis showed maximal hydrolysis rate at ph 4.0 and in a temperature range of 50–60 °c. all enzymatic activities were highly stable at 40 and 50 °c through 48 h of pre-incubation. saccharification of alkaline pretreated sugarcane bagasse by crude enzyme extract from c. cubensis resulted in release of 320.8 mg/g and 288.7 mg/g of glucose and xylose, respectively. on another hand, a similar assay employing commercial cellulase preparation resulted in release of 250.6 mg/g and 62.1 mg/g of glucose and xylose, respectively. cellulolytic extract from c. cubensis showed a great potential to be used in biomass saccharification processes.

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