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Enzymatic hydrolysis of corn stover process development and evaluation

Technical Report ·
OSTI ID:6668834
The hydrolysis of acid treated corn stover with cellulase from T. reesei Rut-C-30 was evaluated. Experiments were conducted with substrate concentrations of 5 to 25% by weight, enzyme activities of 0.5 to 7 IU/ml and residence times of 24 to 48 hours. Maximum conversion was 55% for specific cellulase activity of 25 to 30 IU/g. Optimum cellobiase activity for minimum cellobiose production was found to be approximately 1.8 cellobiase units to 1 FPA unit. Hydrolysis experiments with steam exploded corn stover led to a maximum conversion of 80%, significantly higher than the results obtained for acid treated substrate. Steam exploded corn stover was demonstrated as a suitable carbon source for growth of T. reesei in submerged cultures.
Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6668834
Report Number(s):
LBL-14223; ON: DE83001379
Country of Publication:
United States
Language:
English