Low lignin content feedstock Hemicellulose removal is the key for enzymatic hydrolysis Removal of acid soluble lignin is sufficient to achieve cellulose accessibility High lignin content feedstock Some level of lignin removal is necessary. Lignin removal upto 50% is beneficial High level of lignin removal upto 50% can compensate insufficient level of hemicellulose removal Approximately 70% of hemicellulose removal is required even with significant delignification
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