天然产物研究与开发 ›› 2019, Vol. 31 ›› Issue (4): 595-600.doi: 10.16333/j.1001-6880.2019.4.006

• 研究论文 • 上一篇    下一篇

拐枣中总黄酮提取工艺优化及其抗黄嘌呤氧化酶活性研究

许洪波1,李铂1,唐志书1,李圆1,冀春1,2,刘乃尧1,2,吴群军3,王薇2*   

  1. 1陕西中医药大学陕西省中药资源产业化协同创新中心;2陕西中医药大学药学院,咸阳 712083;3旬阳太极缘生物科技有限公司,安康 725741
  • 出版日期:2019-04-29 发布日期:2019-04-29
  • 基金资助:

    国家自然科学基金 (81603284);陕西省教育厅自然科学研究项目 (18JK0214);陕西省重点科技创新团队(2012KTC-20)

Optimization of extraction of total flavonoids from Hovenia acerba and its xanthine oxidase inhibitory activity

XU Hong-bo1,LI Bo1,TANG Zhi-shu1,LI Yuan1,JI Chun1,2,LIU Nai-yao1,2,WU Qun-jun3,WANG Wei2*   

  1. 1Shaanxi Collaborative Innovation Center of Chinese Medicinal Resources Industrialization; 2College of Pharmacy,Shaanxi University of Chinese Medicine,Xianyang 712046,China; 3Xunyang Taijiyuan Biotechnology Co.,Ltd.,Ankang 725741,China
  • Online:2019-04-29 Published:2019-04-29

摘要: 为了研究拐枣总黄酮(TF)最佳提取工艺及其体外抗黄嘌呤氧化酶(xanthine oxidase,XO)活性。在单因素试验基础上,实验选择料液比、提取时间和乙醇浓度为自变量,应用Box-Benhnken中心组合法进行3因素3 水平试验设计,以拐枣总黄酮得率为响应值,进行响应面分析,并采用D101大孔树脂对总黄酮进行进一步富集纯化,在此基础上研究拐枣总黄酮体外抗XO活性。结果表明,拐枣总黄酮的最佳提取条件为料液比15.0 mL/g、提取时间1.85 h、乙醇浓度53.0%,在此条件下,拐枣总黄酮的平均提取率可达到2.56%。体外活性结果表明,我们首次发现拐枣总黄酮具有显著的抗XO活性,其IC50 为18.63 ± 1.67 μg/mL。本研究可为从拐枣中寻找和发现天然抗XO活性分子提供参考,同时可为拐枣的开发利用提供思路。

关键词: 拐枣, 黄酮, 响应面法, 黄嘌呤氧化酶

Abstract: In order to optimize extraction of total flavonoids from Hovenia acerba and investigate xanthine oxidase inhibitory activity.Based on the results of single-factor tests,the ratio of liquid to solid,extraction time and ethanol concentration were optimized by response surface analysis.The results showed that the process of optimum extraction were the ratio of liquid to solid of 15:1 (mL:g),ethanol concentration of 53%,extraction time of 1.85 h.Under these conditions,the extraction yield of total flavonoids was 2.56%,which was close to the predicted value.The total flavonoid (TF) was further purified by D101 macroporous resin and evaluated for its xanthine oxidase (XO) inhibitory activities in vitro,and the results showed that TF possessed significant enzyme inhibitory action with IC50 value of 18.63 ± 1.67 μg/mL.These results indicated that the optimized extraction technology was reliable and provided a reference for further development and utilization of the Hovenia acerba.

Key words: Hovenia acerba, flavonoid, response surface methodology, xanthine oxidase

中图分类号: 

R284.2