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林产化学与工业 ›› 2018, Vol. 38 ›› Issue (3): 63-68.doi: 10.3969/j.issn.0253-2417.2018.03.008

• 研究报告 • 上一篇    下一篇

竹材乙醇液化制备乙基糖苷及酚类物质

马艳1, 谭卫红1, 冯国东1, 徐俊明1,2, 王奎1, 蒋剑春1,2   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室;江苏省 生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 江苏强林生物能源材料有限公司, 江苏 溧阳 213364
  • 收稿日期:2017-12-25 出版日期:2018-06-25 发布日期:2018-06-22
  • 通讯作者: 蒋剑春,研究员,博士,博士生导师,主要从事生物质能源与炭材料的研究开发工作;E-mail:jiangjc@icifp.cn。 E-mail:jiangjc@icifp.cn
  • 作者简介:马艳(1983-),女,山东聊城人,博士生,从事生物质液化转化方面的研究;E-mail:mayan23@163.com
  • 基金资助:
    国家自然科学基金重点项目资助(31530010)

Preparation of Ethyl Glycosides and Phenolic Products by Pressurized Liquefaction of Bamboo Biomass

MA Yan1, TAN Weihong1, FENG Guodong1, XU Junming1,2, WANG Kui1, JIANG Jianchun1,2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Jiangsu Qianglin Bio-energy and Bio-materials Co., Ltd., Liyang 213364, China
  • Received:2017-12-25 Online:2018-06-25 Published:2018-06-22

摘要: 以乙醇为液化剂,浓硫酸为催化剂,在体积250 mL的高温高压反应釜中对竹粉进行液化,考察了不同反应条件对竹粉液化的影响,并对液化产物进行中和、逐级分离等处理。液化结果表明:在催化剂浓H2SO4用量5%、反应时间30 min、反应温度180℃条件下,竹粉液化率为69.67%,产物中糖苷得率为39.86%,酚类物质得率为20.7%。液化产物逐级分离得到乙基糖苷及3种酚类物质两类平台化合物,其GC-MS分析结果表明:3种酚类物质的主要成分为2,6-二甲氧基苯酚,3,5-二甲氧基-4-邻羟基苯乙酸,4-烯丙基-2,6-二甲氧基苯酚和绵马酚等,约占酚类物质总量的80%;糖苷中主要包含五碳糖苷(呋喃糖苷)和六碳糖苷(吡喃葡萄糖苷和半乳糖苷),占糖苷总量的88.62%。

关键词: 竹材, 液化, 糖苷, 酚类物质

Abstract: The liquefaction of bamboo biomass was investigated using ethanol as solvent with H2SO4 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.

Key words: bamboo biomass, liquefaction, glycosides, phenolic compounds

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