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林产化学与工业 ›› 2017, Vol. 37 ›› Issue (2): 93-100.doi: 10.3969/j.issn.0253-2417.2017.02.012

• 研究报告 • 上一篇    下一篇

响应面法优化超声波辅助乙醇/盐双水相萃取栀子中京尼平苷

刘磊磊1,2, 赵帅1, 王欢1, 彭胜1,2, 郭婕1,2   

  1. 1. 吉首大学 林产化工工程湖南省重点实验室, 湖南 张家界 427000;
    2. 湖南省植物功能成分利用协同创新中心, 湖南 张家界 427000
  • 收稿日期:2016-06-27 出版日期:2017-04-25 发布日期:2017-05-04
  • 作者简介:刘磊磊(1984-),男,河南汝州人,讲师,博士,主要从事天然产物化学与分离新方法研究;E-mail:liull126@126.com
  • 基金资助:
    国家自然科学基金资助项目(31560105);湖南省自然科学基金资助项目(14JJ6037)

Optimization of Ultrasonic Assisted Extraction of Geniposide from Gardenia Fruits by Using Ethanol/Salt Aqueous Two-phase System with Response Surface Method

LIU Leilei1,2, ZHAO Shuai1, WANG Huan1, PENG Sheng1,2, GUO Jie1,2   

  1. 1. Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China;
    2. Hunan Co-innovation Center for Utilization of Botanical Functional Ingredients, Zhangjiajie 427000, China
  • Received:2016-06-27 Online:2017-04-25 Published:2017-05-04

摘要: 采用超声波辅助乙醇/盐双水相萃取技术对栀子中京尼平苷的提取分离效果进行了系统研究,在单因素试验基础上,采用响应曲面试验设计进行优化,进一步比较了该方法与超声波溶剂提取法、热回流提取法等传统方法对京尼平苷的提取效果。结果表明:超声波辅助乙醇/盐双水相萃取的最佳工艺条件为构建10.0 g乙醇/NaH2PO4双水相体系,其中加入无水乙醇4 mL(即体系中乙醇质量分数为31.56%),NaH2PO4质量分数为15.00%,超声波温度为30 ℃,超声波时间为30 min,栀子干粉加入量为0.03 g,上相中京尼平苷的得率为51.77 mg/g。该方法提取时间短、提取温度较低,而且得率较高,对栀子中京尼平苷的提取效果明显优于超声波溶剂提取法和热回流提取法等传统方法。

关键词: 双水相体系, 超声波辅助, 栀子, 京尼平苷

Abstract: An ultrasonic-assisted technology combined with ethanol/NaH2PO4 aqueous two-phase system (UAATPE) was developed for the extraction and purification of geniposide (GP) from gardenia fruits. Based on the results of single factor experiments, the Box-Behnken Design combined with response surface methodology was applied to optimize the operating parameters. Furthermore, the comparisons with ultrasonic solvent extraction, heat reflux extraction, and ultrasonic-assisted aqueous two-phase extraction were also assessed. GP was mainly extracted into the top ethanol-rich phase. And the optimal experimental conditions were 10.0 g ethanol/salt aqueous two-phase system, NaH2PO4 mass fraction 15.00%, ethanol 4 mL(ethanol mass fraction 31.56%), extraction temperature 30 ℃, extraction time 30 min and sample loading 0.03 g. And the maximum yield of GP in top phase was 51.77 mg/g. The comparison results indicated that ultrasonic-assisted aqueous two-phase extraction was more efficient and environmentally friendly than ultrasonic solvent extraction and heat reflux extraction, for the technique had the shorter extraction time, the lower extraction temperature and the higher extraction efficiency.

Key words: aqueous two-phase systems, ultrasonic assisted, gardenia fruits, geniposide

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