生物质化学工程2026，Vol.60Issue(3)：11-20,10.DOI:10.3969/j.issn.1673-5854.2026.03.002
葛根渣中半纤维素碱法增效提取研究
Enhanced Alkaline Extraction of Hemicellulose From Pueraria lobata Residue
摘要
Abstract
In order to obtain hemicellulose with high extraction rate and effectively extract cellulose and lignin from Pueraria lobata residue,a large amount of waste P.lobata residue produced by P.lobata starch industry was used as raw materials to extract hemicellulose by alkali extraction method.Based on the single-factor experiments of screening different mass fractions of NaOH solution,extraction temperature and extraction time,the response surface method was adopted to further optimize the extraction process.The results showed that the optimum conditions for the extraction of hemicellulose from P.lobata residue were 5.0 g of P.lobata residue,100 mL of 8.9%NaOH solution,an extraction temperature of 69℃and an extraction time of 4.4 h.The yield of hemicellulose was 92.6%,which was not much different from the theoretical yield(92.7%).The structure and properties of the extracted hemicellulose were analyzed by scanning electron microscopy,infrared spectroscopy,1 H nuclear magnetic resonance and 13 C nuclear magnetic resonance as well as thermogravimetric analysis.The characterization results showed that the extracted hemicellulose from P.lobata residue presented a gray-white powder,with no acetyl groups in the side chain,and the main component was poly-arabinose xylose.It had good thermal stability and could exist stably below 217℃.关键词
生物质预处理/葛根渣/半纤维素/碱抽提法/结构表征Key words
biomass pretreatment/Pueraria lobata residue/hemicellulose/alkali extraction method/structural characterization分类
化学化工引用本文复制引用
吴梅,邓凤娟,吴顺雨,贺健,宋科,李虎..葛根渣中半纤维素碱法增效提取研究[J].生物质化学工程,2026,60(3):11-20,10.基金项目
国家自然科学基金项目(22268019) （22268019）
张家界市小荷人才项目(2024XHRC01) （2024XHRC01）
