天津农学院学报 ›› 2017, Vol. 24 ›› Issue (2): 63-66.

• 研究与简报 • 上一篇    下一篇

萝卜叶黄酮的超声波辅助提取工艺及抗氧化活性研究

吴海清1,2, 甄润英1,2,通信作者, 何新益1,2, 孙贵宝1,2   

  1. 1. 天津农学院 食品科学与生物工程学院,天津 300384;
    2. 天津市农副产品深加工技术工程中心,天津 300384
  • 收稿日期:2016-07-10 出版日期:2017-06-30 发布日期:2019-10-15
  • 通讯作者: 甄润英(1962–),女,天津市人,教授,硕士,主要从事食品加工及营养检测方面的研究。E-mail:zhenrunying@tjau.edu.cn。
  • 作者简介:吴海清(1982–),女,天津市人,实验师,硕士,主要从事食品科学及生物工程方面的研究。E-mail:haiqing_w@yeah.net。
  • 基金资助:
    天津市农业科技合作项目“特色品牌青萝卜产业化配套新技术集成示范”(201410061027)

Optimization of Ultrasonic-assisted Extraction Technology and Antioxidant Activities of Flavonoids in Radish Leaves

WU Hai-qing1,2, ZHEN Run-ying1,2,Corresponding Author, HE Xin-yi1,2, SUN Gui-bao1,2   

  1. 1. College of Food Science and Biotechnology, Tianjin Agricultural University, Tianjin 300384, China;
    2. Tianjin Engineering and Technology Research Center of Agricultural Products Processing, Tianjin 300384, China
  • Received:2016-07-10 Online:2017-06-30 Published:2019-10-15

摘要: 用超声波辅助乙醇提取萝卜叶中的黄酮。通过单因素试验与四元三次正交试验,对黄酮的超声波辅助醇提工艺进行优化,以体外清除(·OH)和(O2)的能力为指标,研究萝卜叶黄酮的抗氧化活性。最优条件:乙醇浓度为60%,料液比为1:15(mV),超声波处理15 min,在50 ℃下浸提30 min,该条件下黄酮提取率为1.41%,是传统浸提法的200%;萝卜叶黄酮对·OH和O2均有明显的清除作用,在试验剂量下,清除效果随着黄酮浓度的增加而增强,对·OH和 O2的半数抑制率(IC50)分别为0.643 8、1.523 1 mg/mL。结果表明:超声波辅助提取是一种高效的提取萝卜叶黄酮方法,其抗氧化活性较高。

关键词: 萝卜叶, 黄酮, 超声波, 辅助, 抗氧化

Abstract: Total flavonoids were extracted from radish leaves using ethanol as extraction solvent with the aid of ultrasonic treatment. Five single-factor experiments with four factors triple orthogonal design was adopted to research the ultrasonic-assisted ethanol extraction process of flavonoids in the water bath. The scavenging abilities against hydroxyl radicals (·OH) and (O2) in vitro of flavonoids were determined. The results indicated that the optimum extraction parameters were as follows:the volum fraction of ethanol was 60%, solid-liquid ratio was 15(m:V), ultrasonic treatment 15min, immerse 30 min under the temperature of 50 ℃. Under these conditions, the extraction rate of total flavonoids is up to 1.41%, was the traditional extraction method of 200%. Flavonoids of radish leaves can effectively scavenge·OH and O2, and the role of these effect increased with the increase of flavonoids concentration, IC50 were 0.643 8, 1.523 1 mg/mL. These results demonstrated that UAE was a highly effective way to extract flavonoids from radish leaves and the antioxidant activity of flavonoids was high.

Key words: radish leaves, flavonoids, ultrasonic wave, assisted, antioxidant

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