文献类型：期刊文献

英文题名：Evaluation of the Deterioration State of Historical Palm Leaf Manuscripts from Burma

作者：Chu, Shimin[1,2] Lin, Lanying[2] Tian, Xingling[1]

第一作者：Chu, Shimin

通信作者：Tian, XL[1]

机构：[1]China Acad Cultural Heritage, Beijing 100029, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2023

卷号：14

期号：9

外文期刊名：FORESTS

收录：;EI(收录号：20234014822533);Scopus(收录号：2-s2.0-85172735494);WOS:【SCI-EXPANDED(收录号:WOS:001075791400001)】；

基金：The authors express their gratitude to Liusan Li, Li Li, Xiangdong Li, and Bingfeng Zhang for their assistance with this study.

语种：英文

外文关键词：palm leaf manuscripts; physicochemical structure; mechanical properties; deterioration

摘要：Palm leaf manuscripts were a prevalent literary medium from South Asia and Southeast Asia prior to the widespread use of paper. This study focuses on the analysis of historical palm leaf manuscripts from South and Southeast Asia. Sample palm leaf manuscripts from Burma were used as a case study; simulated palm leaf manuscripts were also created as a reference for comparison. The anatomy, chemical composition, and mechanical properties of the manuscripts were analyzed to find various forms of deterioration, including damage, fractures, pollution, acidification, and microbial deterioration. Specifically, the S1-S3 layers of the cell walls exhibited complete cracking, and the S2 layer showed numerous circular or nearly circular cavities caused by microbial erosion, while the middle lamella remained intact. The severe degradation of polysaccharides and pectin, accompanied by an increase in the relative content of lignin, caused the historical manuscripts to become more brittle. Additionally, the tensile strengths of historical palm leaf manuscripts were markedly reduced; their longitudinal tensile strength was significantly greater than their transverse tensile strength. This study can contribute to a better understanding of the deterioration process of historical palm leaf manuscripts and provide valuable insights for their restoration and preservation.