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林产化学与工业

林产化学与工业 ›› 2012, Vol. 32 ›› Issue (5): 106-110.

• 1研究报告 • 上一篇    下一篇

亚临界水萃取东北红豆杉加工废弃物中的多糖

李双明, 于三三, 贾岩, 解晓, 贾辰, 李文秀   

  1. 沈阳化工大学 化学工程学院, 辽宁 沈阳 110142
  • 收稿日期:2011-10-18 修回日期:1900-01-01 出版日期:2012-10-30 发布日期:2012-10-30
  • 通讯作者: 于三三,硕士生导师,主要从事林产资源加工与利用、以及生物质能源的研究;E-mail:syict33@126.com; 李文秀,教授,博士生导师,主要从事新型优质萃取分离技术研究;E-mail:wxli@syict.edu.cn。

Sub-critical Water Extraction of Polysaccharide from Processing Residues of Taxus cuspidate

LI Shuang-ming, YU San-san, JIA Yan, XIE Xiao, JIA Chen, LI Wen-xiu   

  1. College of Chemical Engineering,Shenyang University of Chemical Technology, Shenyang 110142, China
  • Received:2011-10-18 Revised:1900-01-01 Online:2012-10-30 Published:2012-10-30

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摘要： 以东北红豆杉乙醇提取紫杉醇后的废弃物为原料,利用亚临界水技术提取活性物质红豆杉多糖。系统考察了提取条件对红豆杉多糖提取得率的影响,确定了利用亚临界水提取东北红豆杉多糖的最佳工艺条件:料液比1∶15(g∶mL),提取温度 150 ℃,提取时间 1 h,提取1次,醇沉质量分数 90 %。在上述工艺条件下,亚临界水提取红豆杉多糖的提取得率为 3.03 %。此外,将亚临界水萃取法与热水回流提取和超声波辅助提取进行了比较,结果表明,亚临界水提法提取的多糖收率最高(3.03 %),分别是热水回流提取和超声提取的2.31倍和7.97倍。利用红外光谱对得到的多糖进行了初步的结构分析,结果表明红豆杉多糖为β-吡喃型的酸性多糖。

关键词: 亚临界水, 加工废弃物, 红豆杉多糖, 高效萃取

Abstract: The process of sub-critical water extraction of polysaccharide from processing residues of Taxus cuspidata was studied. The influences of ratio of different factors were investigated systematically. The optimal conditions were established as follows:ratio of material to liquid 1∶15, extraction temperature 150 ℃, extraction time 1 h, extracting once, ethanol concentration 90 %. Under above conditions, the extraction yield of polysaccharide was 3.03 %. In addition, the effect of sub-critical water extraction was compared with refluxing extraction and ultrasonic extraction. Results showed that sub-critical water extraction possess the highest yield, which was 2.31 times and 7.97 times of the yields by refluxing extraction and ultrasonic extraction, respectively. The structure of obtained polysaccharide was analyzed using infrared spectra. IR results showed that taxus polysaccharide was acidic polysaccharides with β-Pyranose configuration.

Key words: sub-critical water, processing residues, taxus polysaccharide, extraction

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