华中地区南荻生物质品质性状分析与半纤维素糖化研究

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中图分类号：S216.2 文献标识码：A 文章编号：1006-060X（2025）11-0037-06

Abstract：This study took10 germplasms of Miscanthus lutarioriparius colected fromcentral China asthetest materials， systematicalyanalyzed thebiologicalandbiomassqualitytraitsof diferentgermplasmsofM.lutarioriparius，andexploredthe transformation efciencyofhemicelluloseof diferentgermplasmsunder hydrothermal liquefactionconditionsandtheproductivity of xylooligosacchardes and xylose.Theresults showedthatthebiological raitsof diferent germplasms wereichindiversity.The coeficientsofvarationofsolublesubstancesandashcontent wererelativelylarge，butthecontents ofcelllose，hemicellloseand lignin were stable，with the coefficients of variation all less than 10% .After pretreatment by hydrothermal liquefaction， the content of hemicellulose decreased from 23.38% to 7.56% ，while the relative contents of cellulose and lignin in the residue increased significantly. There were significant diferences inthe hydrolysisrateofhemicelluloseandthesugar product productivityamong different M. lutarioripariusgermplasms.TehmicellosehydrolysisrateandxyloseproductivityofgermplasmB234werethehighstaching 67.86% and 34.30% respectively，while the xylooligosaccharides productivity of CO402 was the highest （58.74%） . Overall， the homogeneity of the biomass raw materials from M. lutarioriparius in central China is good，and the stability of its core components isconducivetostandardizedindustrialapplications.Hydrotheraliquefactiontechnologycanachieveefficientdegradationof hemicellulose into target products such as xylooligosaccharides.

Key Words：Miscanthus lutarioriparius;lignocellulose;hydrothermal liquefaction; xylooligosaccharides

开发绿色可再生生物质资源是实现能源结构转型的关键路径，其中基于木质纤维素生物质构建新型化工原料体系已成为全球研究热点[1-3]。（剩余7595字）