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| Study on Low-alkali Pulping Process of Pteroceltis Tatarinowii Bark with Laccase-Xylanase Composite Enzyme Pretreatment |
| Received:January 20, 2026 Revised:February 05, 2026 |
| DOI：10.11980/j.issn.0254-508X.2026.04.012 |
| Key Words:enzyme Pteroceltis tatarinowii bark pulping alkali consumption |
| Fund Project:国家重点研发计划课题（2021YFC00405）。 |
| Author Name | Affiliation | Postcode | | ZHANG Dongli* | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | XIE Haojing | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHANG Chenyang | 2School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHAO Hui | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LI Bingyun* | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | HAN Shuangyan* | 2School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:This study investigated the effects of individual laccase and xylanase pretreatment， as well as laccase-xylanase composite enzyme pretreatment， on the dissolution of raw material components， fiber and paper properties with three-year-old mature Pteroceltis Tatarinowii bark as the subject. It also evaluated the application potential of laccase-xylanase composite enzyme pretreatment in low-alkali pulping processes. The results indicated that the laccase-xylanase composite enzyme pretreatment exhibited significant synergistic effects. Compared to individual laccase and xylanase pretreatments， it increased lignin removal to 36.7%， with refining efficiency improved by 14.8%， and significantly enhanced paper tensile， bursting， and tear index. Under conditions of 30% reduced alkali consumption， pulp beating efficiency increased by 6.8%， brightness improved by 4.84 percentage point， and paper physical strength remained superior to that produced by traditional high-alkali pulping process. |
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