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日用化学工业 ›› 2020, Vol. 50 ›› Issue (3): 164-170.doi: 10.3969/j.issn.1001-1803.2020.03.005

• 开发与应用 • 上一篇    下一篇

表面活性剂辅助超声萃取杜仲叶总多酚及其抗氧化活性研究

李陆军1,2,王志宏1,霍延平2,王翔1,杨秋玲1,彭密军1()   

  1. 1. 广东省测试分析研究所 广东省分析测试技术公共实验室,广东 广州 510070
    2. 广东工业大学 轻工化工学院,广东 广州 510006
  • 收稿日期:2019-08-02 修回日期:2020-03-06 出版日期:2020-03-22 发布日期:2020-04-02
  • 通讯作者: 彭密军
  • 作者简介:李陆军(1993-),男,河南人,硕士研究生,电话:13113962986,E-mail: 570522940@qq.com
  • 基金资助:
    广东省科学院发展专项资金项目资助(2019GDASYL-0502003);国家自然科学基金资助项目(31660181);杜仲综合利用技术国家地方联合工程实验室项目资助(NLE201602);杜仲综合利用技术国家地方联合工程实验室项目资助(NLE201704)

Study on surfactant-assisted ultrasonic extraction of total polyphenols from Eucommia ulmoides leaves and their antioxidant activity

Lu-jun LI1,2,Zhi-hong WANG1,Yan-ping HUO2,Xiang WANG1,Qiu-ling YANG1,Mi-jun PENG1()   

  1. 1. Guangdong Provincial Public Laboratory of Analysis and Testing Technology, Guangdong Institute of Analysis, Guangzhou, Guangdong 510070, China
    2. School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
  • Received:2019-08-02 Revised:2020-03-06 Online:2020-03-22 Published:2020-04-02
  • Contact: Mi-jun PENG

摘要:

优化了表面活性剂辅助超声提取杜仲叶总多酚工艺,并比较了不同提取工艺的杜仲叶提取物的体外抗氧化能力。首先以总多酚为指标,在单因素试验的基础上,通过正交试验优化杜仲叶总多酚的提取条件。然后以提取物的羟基自由基清除率、ABTS自由基清除率、DPPH自由基清除率和还原力来评价杜仲叶提取物的体外抗氧化能力。实验结果表明较佳提取工艺为SDS用量0.1 g/L,超声时间5 min,乙醇体积分数50%,料液比1∶20 (g∶mL),温度45 ℃,在该条件下,杜仲叶总多酚得率为6.770%。杜仲叶提取物具有一定的体外抗氧化能力。

关键词: 杜仲叶, 总多酚, 提取工艺, 表面活性剂, 抗氧化

Abstract:

The surfactant-assisted ultrasonic extraction of total polyphenols from Eucommia ulmoides leaves was optimized. The antioxidant activity in vitro was compared between the extracts from Eucommia ulmoides leaves with different extraction processes. Firstly, on the basis of the single-factor test, the total polyphenols were used as indicators to optimize the extraction conditions by the orthogonal experiment. Then the antioxidant activity of the extract from Eucommia ulmoides leaves was evaluated in vitro in terms of the hydroxyl radical scavenging rate, ABTS free radical scavenging rate, DPPH free radical scavenging rate and reducing power. The experimental results showed that the optimal extraction process was SDS dosage of 0.1 g/L, ultrasonic extraction time of 5 min, ethanol volume fraction of 50%, solid-liquid ratio of 1∶20 (g∶mL), and temperature of 45 °C. Under this condition, the total polyphenol yield of Eucommia ulmoides leaves was 6.770%. The extract from Eucommia ulmoides leaves had certain antioxidant activity in vitro.

Key words: Eucommia ulmoides leaf, total polyphenols, extraction process, surfactant, antioxidation

中图分类号: 

  • TQ658