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摘要
In this study，the chemical composition and isolated lignin structure of 10 wild bamboo raw materials from Guangxi province were characterized by the National Renewable Energy Laboratory（NREL）method，thioacidolysis，gel permeation chromatography（GPC），twodimensional nuclear magnetic（2D NMR），etc. The results showed that the cellulose contents of 10 wild bamboo species were between 37. 09%~44. 21%，and the hemicellulose and lignin contents were 17. 16%~23. 32% and 21. 73%~25. 81%，respectively. All lignin prepa? rations were GSH-type，and the content of the H-type unit was below 5%. Three major inter-unit linkages present in all kinds of bamboo’s lignin are β?O?4，β?β，and β?5，of which the β?O?4 linkages accounted for more than 80% of the main side-chain linkages and accounted for 47. 41%~52. 07% of the total aromatics. In addition，ferulic acid and p-coumarin acid were also found in the aromatic region. In summary，it suggested that the Bambusapervariabilis，among these bamboo samples，was the most suitable type of bamboo to be used in biorefinery，lig? nin degradation，and pulping and papermaking，followed by the Schizostachyumauriculatum and Dendrocalamopsis. ? 2023 China Technical Association of Paper Industry.
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