Enzymatic activation of dissolving pulp with cationic polyacrylamide to enhance cellulase adsorption

Qiang Wang; Tianzhong Yuan; Shanshan Liu; Guihua Yang; Wenhai Li; Rendang Yang

doi:10.21967/jbb.v2i1.85

Enzymatic activation of dissolving pulp with cationic polyacrylamide to enhance cellulase adsorption

doi: 10.21967/jbb.v2i1.85

a. Key Lab of Paper Science and Technology of Ministry of Education, Qilu University of Technology, Jinan, Shandong Province, 250353, China;
b. Qifeng New Material Co., LTD;
c. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China

基金项目:

The authors are grateful for financial support from the National Science Foundation of China (Grant Nos. 31670584, 31500490) and the Taishan scholar project special funds.

计量
- 文章访问数: 544
- HTML全文浏览量: 109
- PDF下载量: 7
- 被引次数: 0
出版历程

Enzymatic activation of dissolving pulp with cationic polyacrylamide to enhance cellulase adsorption

a. Key Lab of Paper Science and Technology of Ministry of Education, Qilu University of Technology, Jinan, Shandong Province, 250353, China;
b. Qifeng New Material Co., LTD;
c. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China

Funds:

The authors are grateful for financial support from the National Science Foundation of China (Grant Nos. 31670584, 31500490) and the Taishan scholar project special funds.

摘要

摘要:
Cellulase treatment is a promising technology to improve the properties of dissolving pulp in an environmental friendly way. Increasing the cellulase treatment efficiency is of practical interest. In the present study, the concept of using cationic polyacrylamide (CPAM) to enhance the cellulase treatment efficiency was demonstrated. The hypothesis was that the CPAM would attribute to the increased cellulase adsorption onto cellulose fibers based on the patching/bridging mechanism. Results showed that the viscosity decrease was improved with the addition of 250 ppm of CPAM under the same conditions as those of the control. Degraded cellulose content was increased based on the alkaline solubility analysis, while alpha-cellulose content kept constant. The CPAM-assisted cellulase treatment concept may provide a practical alternative method for upgrading dissolving pulp.
- Cellulase treatment /
- Dissolving pulp /
- Alkaline solubility /
- Alpha-cellulose content
Abstract:
Cellulase treatment is a promising technology to improve the properties of dissolving pulp in an environmental friendly way. Increasing the cellulase treatment efficiency is of practical interest. In the present study, the concept of using cationic polyacrylamide (CPAM) to enhance the cellulase treatment efficiency was demonstrated. The hypothesis was that the CPAM would attribute to the increased cellulase adsorption onto cellulose fibers based on the patching/bridging mechanism. Results showed that the viscosity decrease was improved with the addition of 250 ppm of CPAM under the same conditions as those of the control. Degraded cellulose content was increased based on the alkaline solubility analysis, while alpha-cellulose content kept constant. The CPAM-assisted cellulase treatment concept may provide a practical alternative method for upgrading dissolving pulp.
- Cellulase treatment /
- Dissolving pulp /
- Alkaline solubility /
- Alpha-cellulose content