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2024 Vol.56, Issue 3 Preview Page

Research Article

Impact of Cellulases Treatment on Pulp Surface and Chemical Composition

셀룰로오스 분해 효소처리가 섬유의 표면과 화학조성에 미치는 영향

Won-Gyeom Shin1
,
Yoon-Hyuck Choi1
,
Soo-Jeong Shin2†
신 원겸1
,
최 윤혁1
,
신 수정2†
1Department of Forest Products, Graduate School, Chungbuk National University, Graduate Student
2Department of Wood and Paper Science, Chungbuk National University, Professor
1충북대학교 대학원 임산공학전공, 대학원생
2충북대학교 목재종이과학과, 교수
†Corresponding author: E-Mail: soojshin@cbnu.ac.kr (Address: Department of Wood and Paper Science, Chungbuk National University, Cheongju, 28644, Republic of Korea)
30 June 2024. pp. 27-34
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Abstract

Reducing energy consumption in the papermaking process is a critical challenge for the paper industry. One method to decrease energy usage in the refining process is the enzymatic pretreatment of pulp. Two different enzymes applied as pure cellulases (Celluclast® 1.5) and mixtures of cellulase and xylanase (Viscoflow® MG). Different dose of enzymes as 1.0, 2.0 and 4.0 IU were added to treat hardwood bleached kraft pulp at 50℃ for 60 minutes. SEM analysis confirmed fibrillation on the fiber surfaces of both cellulase-treated and mixed enzyme-treated pulps, indicating external fibrillation effects, which were more pronounced with cellulase. Compositial analysis of polysaccharides by 1H-NMR analysis showed that the mixed enzyme-treated pulp had reduced xylan content. which led less glucuronic acid content in pulp after enzyme hydrolysis. Cellulase only containing enzyme was more effective than cellulase and xylan mixture or water retention value increase as 51% up vs 41% up. Cellulase only enzyme was more effective than cellulase and xylanase mixture in enhancing fiber fibrillation, which led to more water retention.

Keywords
Cellulase
SEM
glucuronic acid
cellulose
xylan
surface fibrillation
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 56
  • No :3
  • Pages :27-34
  • Received Date : 2024-05-22
  • Revised Date : 2024-06-17
  • Accepted Date : 2024-06-18
  • DOI :https://doi.org/10.7584/JKTAPPI.2024.6.56.3.27
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