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  • Title: Effect of steam explosion on biodegradation of lignin in wheat straw.
    Author: Zhang LH, Li D, Wang LJ, Wang TP, Zhang L, Chen XD, Mao ZH.
    Journal: Bioresour Technol; 2008 Nov; 99(17):8512-5. PubMed ID: 18448331.
    Abstract:
    The effect of steam explosion pretreatment on biodegradation of lignin in wheat straw was studied in this paper. Through experiments and analysis, 0.8MPa operation pressure and 1:20 wheat straw to water ratio are optimum for destroying lignin and the maximum of lignin loss rate is 19.94%. After steam explosion pretreatment, the wheat straw was retted by Trametes versicolor for 40 days. Biodegradation rate of lignin was tested and the maximum of 55.40% lignin loss rate was found on day 30. During the whole process of both steam explosion pretreatment and biodegradation, 75.34% lignin was degraded, without steam explosion the biodegradation of raw material the degradation rate of lignin was 31.23% only. FT-IR spectroscopy, TGA and SEM were used for further validating the results of biodegradation.
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