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| Analysis of Chemical Components of Four Characteristic Wild Bast Fiber Plants in Yunnan Province |
| Received:June 26, 2025 Revised:July 02, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.09.004 |
| Key Words:wild bast fiber cellulose hemicellulose lignin |
| Fund Project:国家科技基础资源调查专项（2019FY100900）。 |
| Author Name | Affiliation | Postcode | | ZHANG Xinchao* | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | SONG Tao* | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | YUE Fengxia | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | REN Junli | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LIU Chuanfu | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:This study took four characteristic wild bast fiber plants in Yunnan province as the research objects and systematically analyzed the main chemical composition and key lignocellulosic properties of their stems. The results showed that the content ranges of cellulose， hemicellulose and lignin in the four plants were 25.57% to 43.75%， 5.36% to 16.82%， and 12.15% to 31.71%， respectively. The degree of polymerization (DP) of the isolated cellulose ranged from 880 to 1 415， and the molecular weight of hemicellulose ranged from 43.62 to 200.73 kDa， with glucose or xylose serving as the primary sugar units. The syringyl/guaiacyl (S/G) ratio of acid-insoluble lignin ranged from 0.82 to 1.54. Among the four bast fiber plants， Ensete glaucum exhibited the lowest lignin content (12.19%) coupled with the highest holocellulose content (55.94%) and cellulose content (43.74%)， making it the most suitable candidate for the papermaking industry. Broussonetia papyrifera ranked second in applicability. Sida szechuensis Matsuda exhibited the highest lignin content (31.74%) and had a greater advantage in the lignocellulose-based biomass refining industry， while Pouzolzia sanguinea exhibited the lowest holocellulose content (32.41%) and cellulose content (merely 5.38%) among the studied plants. Additionally， it showed relatively high ash content (12.96%) and extractives content (20.52%)， indicating limited application potential in both the papermaking industry and the hemicellulose-based biomass conversion sector. |
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