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Correlation Analysis Of Enzyme Activities And Deconstruction Of Ammonia-Pretreated Switchgrass By Bacterial-Fungal Communities, Abhiney Jain, H. Sandra Pelle, J. Michael Henson
Correlation Analysis Of Enzyme Activities And Deconstruction Of Ammonia-Pretreated Switchgrass By Bacterial-Fungal Communities, Abhiney Jain, H. Sandra Pelle, J. Michael Henson
H. Sandra Pelle
The mixed microbial communities that occur naturally on lignocellulosic feedstocks can provide feedstock-specific enzyme mixtures to saccharify lignocelluloses. Bacterial-fungal communities were enriched from switchgrass bales to deconstruct ammonia-pretreated switchgrass (DSG). Correlation analysis was carried out to elucidate the relationship between microbial decomposition of DSG by these communities, enzymatic activities produced and enzymatic saccharification of DSG using these enzyme mixtures. Results of the analysis showed that β glucosidase activities and xylosidase activities limited the extent of microbial deconstruction and enzymatic saccharification of DSG. The results also underlined the importance of ligninase activity for the enzymatic saccharification of pretreated lignocellulosic feedstock. The …