食品科学 ›› 2009, Vol. 30 ›› Issue (12): 52-56.doi: 10.7506/spkx1002-6630-200912006

• 工艺技术 • 上一篇    下一篇

富含黄酮和生物碱的桑叶提取物的提取工艺研究

刘 杰,潘 见,张文成,杨 毅,吴方睿   

  1. 农产品生物化工教育部工程研究中心,合肥工业大学
  • 收稿日期:2008-09-08 修回日期:2008-12-02 出版日期:2009-06-15 发布日期:2010-12-29
  • 通讯作者: 刘杰 E-mail:vniapple@163.com
  • 基金资助:

    “十一五”国家科技支撑计划项目(2006BAI06A14-5)

Preparation of Flavonoids and Alkaloids-rich Extract from Mulberry Leaves

LIU Jie,PAN Jian,ZHANG Wen-cheng,YANG Yi,WU Fang-rui   

  1. (Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China)
  • Received:2008-09-08 Revised:2008-12-02 Online:2009-06-15 Published:2010-12-29
  • Contact: LIU Jie, E-mail:vniapple@163.com

摘要:

目的:研究桑叶黄酮和生物碱的同步高效提取工艺,通过正交试验获得最佳提取方案。方法:在单因素试验基础上用正交试验进行工艺参数的优化,获得最佳提取方案。结果:桑叶黄酮和生物碱的最佳同步提取工艺为液料比10:1(V/m)、乙醇浓度60%(pH2)、提取时间2h、提取温度80℃、提取2 次。结论:用该法对桑叶黄酮和生物碱进行共同提取,提取率较高,可以获得二者含量较高的提取物。

关键词: 桑叶, 黄酮, 生物碱, 1- 脱氧野尻霉素(DNJ), 提取工艺

Abstract:

Objective: To develop a technique for synchronized and efficient extraction of flavonoids and alkaloids [the main component in alkaloids from mulberry leaves was 1-deoxynojirimycin (DNJ)] from mulberry leaves. Methods: The optimal pH value of acidic ethanol solution for extraction was confirmed by single factor test, and then other 4 extraction parameters were optimized by orthogonal design based on single factor test. Results: The best synchronized extraction effect of flavonoids and alkaloids was achieved under the following conditions: with ratio of 60% acidic ethanol solution at pH 2 to dry mulberry leaves powder of 10:1, duplicate extraction at 80 ℃ for 2 h. Conclusion: Orthogonal design is feasible to optimize the synchronized extraction of flavonoids and alkaloids from mulberry leaves.

Key words: mulberry leaves, flavonoids, alkaloids, 1-deoxynojirimycin (DNJ), extraction process

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