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| Study on Preparation of Composite Enzyme for Beating of Neosinocalamus affinis Pulp and Its Effects on Beating Performance |
| Received:September 02, 2025 Revised:September 19, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.02.007 |
| Key Words:Neosinocalamus affinis chemimechanical pulp chemical pulp composite enzyme beating degree |
| Fund Project:国家重点研发计划（2022YFC2105500）；国家自然科学基金（22278321，32072161）。 |
| Author Name | Affiliation | Postcode | | WANG Jinjin* | College of Biotechnology, Ministry of Education Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | GUO Feng | College of Biotechnology, Ministry of Education Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | BI Yujiao | College of Biotechnology, Ministry of Education Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | DENG Zhonghao | College of Biotechnology, Ministry of Education Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | LI Qun* | College of Light Industry Science and Engineering, Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | LU Fuping* | College of Biotechnology, Ministry of Education Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | LI Ming* | College of Biotechnology, Ministry of Education Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 |
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| Abstract:To address the issues of high beating energy consumption and poor beating performance in the pulping process of Neosinocalamus (N.) affinis, this study focused on the research of composite enzyme preparations for enzymatic beating process of N.affinis chemimechanical pulp and chemical pulp, aiming to enhance the beating performance and reduce beating energy consumption. Ultimately, composite enzyme suitable for N.affinis chemimechamical pulp and chemical pulp were developed. The composite enzyme for chemimechanical pulp consisted of 20 U/g xylanase, 35 U/g mannanase, and 10 U/g lytic polysaccharide monooxygenase (LPMO), while that for chemical pulp consisted of 20 U/g xylanase, 20 U/g ferulic acid esterase, and 4 U/g LPMO. After treatment with the composite enzyme, the beating degree of N.affinis chemimechanical pulp and chemical pulp increased by 16.0% and 11.9%, respectively, and the beating energy consumption decreased by 26.1% and 20.6%, respectively. Furthermore, the tensile index and burst index of paper made from N.affinis chemimechanical pulp and chemical pulp were significantly improved, specifically, the tensile index and burst index of chemimechanical pulp paper increased by 20.9% and 13.6%, respectively, while those of chemical pulp paper increased by 5.7% and 1.3%, respectively. It was found that the kink index, water retention value, and fibrillation degree of N.affinis fibers increased after enzyme treatment. |
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