林产化学与工业2018，Vol.38Issue(3)：63-68,6.DOI:10.3969/j.issn.0253-2417.2018.03.008
竹材乙醇液化制备乙基糖苷及酚类物质
Preparation of Ethyl Glycosides and Phenolic Products by Pressurized Liquefaction of Bamboo Biomass
摘要
Abstract
The liquefaction of bamboo biomass was investigated using ethanol as solvent with H2 SO4 as catalyst in a 250 mL autoclave. The effects of different reaction conditions on the bamboo liquefaction were investigated. The results showed that optimum liquefaction conditions were catalyst dosage 5%, reaction temperature 180 ℃, reaction time 30 min. Under the circumstances, the yield of ethyl glycoside and phenolic products were 39.86% and 20.7%, respectively, with liquefaction ratio of 69. 67%. The liquefied mixture was further separated by neutralization and step-wise separation process. Two platform chemicals, ethyl glycosides and phenolic products were obtained. The main compositions of phenolic products identified by GC-MS were 2,6-dimethoxyphenol, 3,5-dimethoxy-4-hydroxyphenylacetic acid, 4-allyl-2,6-dimethoxyphenol, and aspidinol et al, which accounting for 80% of the phenolic products. Five carbon sugars ( furan glycosides) and six carbon sugars ( glucopyranose and galactopyranoside) were the predominant products in glucosides, which accounting for 88.62% of the glycosides.关键词
竹材/液化/糖苷/酚类物质Key words
bamboo biomass/liquefaction/glycosides/phenolic compounds分类
化学化工引用本文复制引用
马艳,谭卫红,冯国东,徐俊明,王奎,蒋剑春..竹材乙醇液化制备乙基糖苷及酚类物质[J].林产化学与工业,2018,38(3):63-68,6.基金项目
国家自然科学基金重点项目资助(31530010) （31530010）
