湖北农业科学 ›› 2020, Vol. 59 ›› Issue (13): 127-131.doi: 10.14088/j.cnki.issn0439-8114.2020.13.029

• 贮藏·加工 • 上一篇    下一篇

双水相体系分离纯化杜仲总黄酮和绿原酸的研究

张亦琳, 延永, 张琴   

  1. 商洛学院 生物医药与食品工程学院,陕西 商洛 726000
  • 收稿日期:2019-10-12 出版日期:2020-07-10 发布日期:2020-09-03
  • 作者简介:张亦琳(1988-),女,辽宁阜新人,讲师,博士,主要从事抗生素抑制剂开发、资源植物利用开发等相关研究,(电话)15091567430(电子信箱)yilin_190@126.com。
  • 基金资助:
    陕西省自然科学基础研究计划项目(2018JQ2070); 陕西省教育厅专项科研计划项目(18JK0250); 商洛学院基础研究项目(116SKY021)

Extraction of total flavonoids and chlorogenic acid from Eucommia ulmoides Oliver in aqueous two-phase system

ZHANG Yi-lin, YAN Yong, ZHANG Qin   

  1. College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo 726000, Shaanxi, China
  • Received:2019-10-12 Online:2020-07-10 Published:2020-09-03

摘要: 采用双水相萃取法辅助醇提法来提取纯化杜仲(Eucommia ulmoides Oliver)中的总黄酮和绿原酸。通过单因素试验和Box-Behnken响应面法确定最佳提取工艺,利用乙醇/无机盐双水相体系将杜仲提取物中的总黄酮和绿原酸进行有效分离。结果表明,在最佳提取条件下,杜仲总黄酮的最佳双水相萃取体系为乙醇的质量分数50%、K2HPO4的质量分数20%,此时,相比R为2.93,分配比D为10.35,杜仲总黄酮的萃取率达77.94%。绿原酸的最佳双水相萃取体系为乙醇的质量分数60%、K2HPO4的质量分数20%,此时,相比R为3.43,分配比D为12.32,杜仲绿原酸的萃取率达78.22%。开发条件温和、成相稳定、用时较短的双水相萃取技术,对杜仲的开发利用有重要意义。

关键词: 杜仲(Eucommia ulmoides Oliver), 总黄酮, 绿原酸, 双水相体系, 纯化

Abstract: In this study, the two-phase extraction method was used to assist the extraction of total flavonoids and chlorogenic acid in Eucommia ulmoides Oliver. The optimal extraction process was determined by single factor and Box-Behnken response surface method test, and the total flavonoids and chlorogenic acid in Eucommia ulmoides extract were separated by ethanol/inorganic salt aqueous two-phase system. The results showed that under the optimal extraction conditions, the best aqueous two-phase extraction system for total flavonoids in Eucommia ulmoides was 50% ethanol content with 20% mass fraction of K2HPO4, the phase ratio R was 2.93 and the distribution ratio D was 10.35, and the extraction ratio could reach 77.94%. The best aqueous two-phase extraction system for chlorogenic acid was 60% ethanol with 20% K2HPO4 in water, the phase ratio R was 3.43 and the distribution ratio D was 12.32 with the extraction ratio up to 78.22%. The dual aqueous phase extraction technology with mild development conditions, stable phase and short time is great significant for the development and utilization of Eucommia ulmoides.

Key words: Eucommia ulmoides Oliver, total flavonoids, chlorogenic acid, aqueous two-phase system, purification

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