王萍,刘小玉,刘梦茹,陈启杰,李海龙.构属植物韧皮解剖结构及化学组分的制浆适用性研究[J].中国造纸,2025,44(9):31-36 本文二维码信息
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构属植物韧皮解剖结构及化学组分的制浆适用性研究
Study on the Pulping Applicability of Phloem Anatomical Structure and Chemical Composition of Broussonetia Plants
收稿日期：2025-06-30  修订日期：2025-07-07
DOI：10.11980/j.issn.0254-508X.2025.09.005
关键词:  韧皮  构属植物  解剖结构  化学组分
Key Words:phloem  Broussonetia plants  anatomical structure  chemical composition
基金项目:国家科技基础资源调查专项（2019FY100900）。
作者单位邮编
王萍* 长沙理工大学化学与医药工程学院,湖南长沙,410011 410011
刘小玉 华南理工大学造纸与 污染控制国家工程研究中心,广东广州,510640 510640
刘梦茹* 华南理工大学造纸与 污染控制国家工程研究中心,广东广州,510640 510640
陈启杰 长沙理工大学化学与医药工程学院,湖南长沙,410011 410011
李海龙 华南理工大学造纸与 污染控制国家工程研究中心,广东广州,510640 510640
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摘要:研究了构树、楮构、藤构3种构属植物韧皮的解剖结构与化学组成，并对木质素与果胶的微区分布特征进行观察。结果表明，3种构属植物韧皮在解剖结构与化学组分方面表现出较多相似性；相较于构皮和楮皮，藤构皮的韧皮纤维细胞排列更为紧密，在韧皮部中所占比例更高，且其综纤维素含量（63.31%）也更高。3种构属植物韧皮的木质素含量（约为14%~16%）比一般木材和禾本科更低，其主要沉积在木栓层、薄壁组织及韧皮射线；果胶含量为7%~10%，主要分布在韧皮射线、木栓形成层和薄壁组织中。
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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