Abstract：
:Cost-effectiveness is vital for enzymatic treatment of dissolving pulp towards industrial application. The strategy of cellulase recycling with fresh cellulase addition was demonstrated in this work to activate the dissolving pulp, i.e. decreasing viscosity and increasing Fock reactivity. Results showed that 48.8-35.1% of cellulase activity can be recovered from the filtered liquor in five recycle rounds, which can be reused for enzymatic treatment of dissolving pulp. As a result, the recycling cellulase with addition fresh cellulase of 1mg/g led to the pulp of viscosity 470mL/g and Fock reactivity 80%, which is comparable with cellulase charge of 2mg/g. Other pulp properties such as alpha-cellulose, alkaline solubility and molecular weight distribution were also determined. Additionally, a zero-release of recycling cellulase treatment was proposed to integrate into the dissolving pulp production process.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wang Q,Liu S,Yang G,Chen J,Ji X,Ni Ydoi
10.1016/j.biortech.2016.04.048subject
Has Abstractpub_date
2016-07-01 00:00:00pages
160-163eissn
0960-8524issn
1873-2976pii
S0960-8524(16)30535-1journal_volume
212pub_type
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