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| Study on the Pulping Applicability of Phloem Anatomical Structure and Chemical Composition of Broussonetia Plants |
| Received:June 30, 2025 Revised:July 07, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.09.005 |
| Key Words:phloem Broussonetia plants anatomical structure chemical composition |
| Fund Project:国家科技基础资源调查专项（2019FY100900）。 |
| Author Name | Affiliation | Postcode | | WANG Ping* | School of Chemistry and Pharmaceutical Engineering, Changsha University of Science and Technology, Changsha, Hu’nan Province, 410011 | 410011 | | LIU Xiaoyu | National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LIU Mengru* | National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | CHEN Qijie | School of Chemistry and Pharmaceutical Engineering, Changsha University of Science and Technology, Changsha, Hu’nan Province, 410011 | 410011 | | LI Hailong | National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:The anatomical structure and chemical composition of three Broussonetia plants phloem (Broussonetia papyrifera， Broussonetia kazinoki， Broussonetia kaempferi Siebold) were studied， and the micro-region distribution characteristics of lignin and pectin were observed. The results showed that the phloem of three Broussonetia plants exhibited many similarities in terms of anatomical structure and chemical composition. Compared with Broussonetia papyrifera and Broussonetia kazinoki， the phloem fibroblasts in the Broussonetia kaempferi Siebold were more closely arranged， accounted for a higher proportion in the phloem， and had a higher content (63.31%) of holocellulose. The lignin content of the phloem of three Broussonetia plants phloem (approximately 14% to 16%) was lower than that of common wood and straw， and it was mainly deposited in the phellem layer， parenchyma tissue and phloem rays. The pectin content was 7% to 10%， and it was mainly distributed in the phloem rays， phellogen， and parenchyma. |
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