湖北农业科学 ›› 2020, Vol. 59 ›› Issue (18): 107-111.doi: 10.14088/j.cnki.issn0439-8114.2020.18.021

• 贮藏·加工 • 上一篇    下一篇

葛根淀粉生产水中葛根素的富集纯化工艺优化

徐梦玮, 肖力, 李漪锦, 董新荣, 刘德明, 朱池明2   

  1. 1.湖南农业大学,a.理学院,b.分析测试中心,长沙 410128;
    2.张家界越天然农产品开发有限公司,湖南 张家界 427200
  • 收稿日期:2019-11-15 发布日期:2020-11-05
  • 通讯作者: 董新荣,男,博士,教授,主要从事天然产物化学的教学与研究,(电子信箱)xinrong108@126.com;
  • 作者简介:徐梦玮(1998-),女,山西晋城人,在读本科生,研究方向为应用化学,(电话)18674839559(电子信箱)690385686 @qq.com;刘德明,男,实验师,主要从事中药材品质分析与提取技术研究,(电子信箱)14050868@qq.com。
  • 基金资助:
    湖南农业大学国家新农村发展研究院特色产业基地慈利葛根项目(2018xny-tc007)

Optimization of enrichment and purification process of puerarin in the production of pueraria starch

XU Meng-wei, XIAO Li, LI Yi-jin, DONG Xin-rong, LIU De-ming, ZHU Chi-ming2   

  1. 1a. College of Science, 1b. Center of Analytic Service, Hunan Agricultural University, Changsha 410128, China;
    2. Zhangjiangjie Pure Natural Agricultural Products Development Co. Ltd., Zhangjiajie 427200, Hunan, China
  • Received:2019-11-15 Published:2020-11-05

摘要: 研究了大孔吸附树脂富集纯化葛根淀粉生产排放水中葛根素的方法,并考察了15种型号的树脂对葛根总异黄酮的动态吸附容量及乙醇的洗脱效果。结果表明,HPD-300树脂对葛根总异黄酮的动态吸附容量可达到39.41 mg/mL,吸附后的树脂以70%乙醇1.0 BV/h流速进行梯度洗脱的洗脱率可达到91.42%。从3 L排放水中可回收总异黄酮样品4.7 g,总异黄酮含量(UV比色法)可达到61.67%,葛根素含量(HPLC法)可达31.80%。总异黄酮粗品经5%盐酸水解及重结晶,得到了96.37%高纯度的葛根素样品,相对总异黄酮粗品的回收率为15.91%。以上方法为从葛根淀粉生产排放水中富集纯化葛根素的最佳优化工艺条件。

关键词: 葛根, 葛根素, 分离纯化, 大孔吸附树脂, 总异黄酮

Abstract: The method of puerarin enrichment and purification from water discharged by producing pueraria starch using macroporous resin as adsorption material was studied. The saturated capacity of dynamic adsorption (SCD) and elution rate (ER) of fifteen type of resin for total isoflavones of pueraria was investigated. The results indicated that the SCD for total isoflavones of pueraria was 39.41 mg/mL resin and the ER of resin was 91.42% eluted by 70% ethanol aqueous at 1.0 BV/h flow rate. And 4.7 g of crude isoflavones with the content of total isoflavones of 61.67% (UV spectrophotometry) and the content of puerarin of 31.80% (HPLC) could be recovered from 3 L discharge water. A high purity sample which contained 96.37% puerarin was obtained by 5% HCl hydrolysis and recrystallization, and recovery of puerarin was 15.91%. This was the best process optimization for puerarin enrichment and purification from water extracted pueraria starch.

Key words: pueraria, puerarin, enrichment and purification, macroporous adsorbent resin, total isoflavones

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