天然产物研究与开发 ›› 2011, Vol. 23 ›› Issue (3): 449-452.

• 研究简报 • 上一篇    下一篇

加压提取地榆根中黄酮成分的研究

于慧荣,赵文英*,朱兆友   

  1. 青岛科技大学化工学院,青岛 266042
  • 收稿日期:2009-09-15 出版日期:2011-06-25 发布日期:2011-08-08
  • 通讯作者: wyzhao0059@yahoo.com.cn
  • 基金资助:

    青岛科技大学科研启动基金资助(qust20071217);山东省中青年科学家科研奖励基金(BS2009SW033)

Extraction of Total Flavonoids from Sanguisorba officinalis Root by Pressurized Liquid Extraction

YU Hui-rong, ZHAO Wen-ying*, ZHU Zhao-you   

  1. College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China
  • Received:2009-09-15 Online:2011-06-25 Published:2011-08-08

摘要:

研究加压提取地榆中黄酮的最佳提取工艺。探讨了乙醇浓度、料液比、粒径、提取压力、提取温度和提取时间6个因素对黄酮得率的影响,并通过正交试验优化,确定了加压提取地榆中黄酮的最佳条件。结果表明加压提取地榆中黄酮的最佳提取条件: 浸提温度120 ℃,料液比为1∶20,提取液为60%的乙醇,浸提时间为30 min,浸提压力为5 kg/cm2,粒径为40目,在该条件下黄酮提取率可达17.35%。与回流提取法相比,加压浸提法可显著提高浸提率。

关键词: 地榆根, 黄酮, 加压提取

Abstract:

The extraction process of flavonoids from Sanguisorba officinalis root using pressurized liquid extraction (PLE) was studied and compared with reflux extraction. Significant parameters affecting PLE procedure such as the concentration of ethanol, solid-liquid ratio, temperature, pressure, time, and material size were discussed and optimized by the orthogonal test. The results showed that the optimized conditions were as follows: the extraction solvent 60% ethanol water solution, the material size 40 mesh, ratio of mass of raw material to volume of extraction solvent 1:20, extraction temperature 120 ℃, extraction 30 min under 5.0 kg/cm2 of pressure. The recovery of extraction could reach 17.35%. Comparing with reflux extraction, PLE can obviously increase the recovery of extraction.

Key words: Sanguisorba officinalis root, flavonoids, pressurized liquid extraction

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