食品科学 ›› 2010, Vol. 31 ›› Issue (4): 28-34.doi: 10.7506/spkx1002-6300-201004007

• 工艺技术 • 上一篇    下一篇

枇杷叶中熊果酸的提取工艺研究

焦容容1,2,孙益民1,2,*,孙若琼2,3,耿济华4,宋文佳1,2,罗 乐1,2   

  1. 1.安徽省功能性分子固体重点实验室 2.安徽师范大学化学与材料科学学院 3.安徽师范大学生命科学学院 4.芜湖天润生物技术有限公司
  • 收稿日期:2009-04-07 修回日期:2009-10-12 出版日期:2010-02-15 发布日期:2010-12-29
  • 通讯作者: 孙益民 E-mail:mysun@mail.ahnu.edu.cn
  • 基金资助:

    安徽省教育厅重点项目(KJ2008A083);芜湖市2007 科技计划重点项目([2007]26 号No.32;[2007]26 号No.9)

Extraction of Ursolic Acid from Loquat (Eriobotrya japonica (Thunb.) Lindl.) Leaves

JIAO Rong-rong1,2,SUN Yi-min1,2,*,SUN Ruo-qiong2,3,GENG Ji-hua4,SONG Wen-jia1,2,LUO Le1,2   

  1. 1. Key Laboratory of Functional Molecular Solid of Anhui Province, Wuhu 241000, China;2. College of Chemistry and Materials
    Science, Anhui Normal University, Wuhu 241000, China;3. College of Life Science, Anhui Normal University, Wuhu 241000,
    China;4. Talent Natural Extract Co. Ltd., Wuhu 241007, China
  • Received:2009-04-07 Revised:2009-10-12 Online:2010-02-15 Published:2010-12-29
  • Contact: SUN Yi-min E-mail:mysun@mail.ahnu.edu.cn

摘要:

对超声波辅助提取枇杷叶中的熊果酸进行较为系统的研究。选择乙醇体积分数、提取时间、液固比、提取次数、物料的粒子大小5 个影响因素,运用均匀设计法安排实验,以高效液相色谱测定熊果酸的含量。以提取率为实验指标,用自主提出的可视分析方法对多维空间实验数据进行分析,并且以20 倍原料量进行了尚佳工艺放大实验。最终确定最佳工艺范围为乙醇体积分数80%~100%、提取时间50~65min 和80~100min,提取次数1 次。此类提取中,液固比和物料的粒子大小对提取率影响复杂。

关键词: 熊果酸, 均匀设计法, 高效液相色谱, 可视分析法

Abstract:

In this study, ultrasonic-assisted extraction of ursolic acid from loquat leaves was systematically investigated. The influence of five technological parameters including ethanol concentration, extraction time, liquid/solid ratio, extraction number and material particle size on ursolic acid yield was assessed by uniform design for obtaining optimal ultrasonic-assisted extraction process. Ursolic acid was quantified by HPLC method. The optimized process was validated by 20-fold pilot scale enlargement. The optimal values of technological parameters were obtained as follows: ethanol concentration 80% - 100%, extraction time 50-65 min or 80-100 min, and extraction number 1. Visual analysis demonstrated the complicated influence of liquid/solid ratio and material particle size on ursolic acid yield.

Key words: ursolic acid, uniform design method, HPLC, visual analysis method

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