کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7069974 | 1459923 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biodegradation of lignin by fungi, bacteria and laccases
ترجمه فارسی عنوان
تجزیه زیستی لیگنین توسط قارچ ها، باکتری ها و لک ها
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Indulin AT biodegradation by basidiomycetous fungi, actinobacteria and commercial laccases was evaluated using a suite of chemical analysis methods. The extent of microbial degradation was confirmed by novel thermal carbon analysis (TCA), as the treatments altered the carbon desorption and pyrolysis temperature profiles in supernatants. Laccase treatments caused only minor changes, though with increases occurring in the 850 °C and char precursor fractions. After fungal treatments, lignin showed a similar change in the TCA profile, along with a gradual decrease of the total carbon, signifying lignin mineralization (combined with polymerization). By contrast, bacteria produced phenolic monomers without their further catabolism. After 54 days of cultivation, a 20 wt% weight loss was observed only for fungi, Coriolus versicolor, corroborating the near-80% carbon mass balance closure obtained by TCA. Compositional changes in lignin as a result of biodegradation were confirmed by thermal desorption (TD)-pyrolysis-GC-MS validating the carbon fractionation obtained by TCA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 220, November 2016, Pages 414-424
Journal: Bioresource Technology - Volume 220, November 2016, Pages 414-424
نویسندگان
Fnu Asina, Ivana Brzonova, Keith Voeller, Evguenii Kozliak, Alena Kubátová, Bin Yao, Yun Ji,