On-site enzymes produced from Trichoderma reesei RUT-C30 and Aspergillus saccharolyticus for hydrolysis of wet exploded corn stover and loblolly pine
2014
Rāṇā, Vandanā | Eckard, Anahita D. | Teller, Philip | Ahring, Birgitte K.
Cellulase production by two filamentous fungi Trichoderma reesei RUT-C30 and novel fungal strain, Aspergillus saccharolyticus on pretreated corn stover was investigated. Cellulase production was followed by the hydrolysis of two feedstocks, wet-exploded corn stover (WECS) and wet-exploded loblolly pine (WELP) by on-site produced enzyme cocktails containing cellulase from T. reesei RUT-C30 and β-glucosidase from A. saccharolyticus. The sugar yields using the on-site enzyme cocktails were compared with commercial enzymes preparations, Celluclast 1.5L and Novozym 188 at two substrate concentrations, 5% and 10% (w/w) and enzyme loading at 5 and 15FPU/g glucan for WECS and WELP. The highest sugar yields were obtained at 5% (w/w) substrate concentration and 15FPU/g glucan for both feedstocks. Glucose yields of 81% and 88% were obtained from on-site and commercial enzymes, respectively using WECS as feed stock. The sugar yields were 55% and 58% for WELP samples hydrolyzed with on-site and commercial enzymes, respectively.
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