食品科学

• 工艺技术 • 上一篇    下一篇

正交试验优化葛根素的大孔树脂纯化工艺

李 适,岳明珠,李银花,傅冬和   

  1. 1.湖南农业大学园艺园林学院,湖南 长沙 410128;2.国家植物功能成分利用工程技术研究中心,湖南 长沙 410128
  • 出版日期:2013-08-25 发布日期:2013-09-03

Purification of Puerarin by Macroporous Resins

LI Shi,YUE Ming-zhu,LI Yin-hua,FU Dong-he   

  1. 1. College of Horticulture and Landscape, Hunan Agricultural University, Changsha 410128, China;
    2. National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha 410128, China
  • Online:2013-08-25 Published:2013-09-03

摘要:

以葛根粗提物为原料,比较D101、X-5、HD-101、D14、S-8、HC-D301、HD-8、D141、HPD100、HPD500、AB-8及NKA-2共12种大孔吸附树脂对葛根素的吸附与解吸性能。通过单因素试验、正交试验与验证实验,优化树脂分离纯化葛根素的工艺技术参数。结果表明:NKA-2树脂吸附效果最好,静态饱和吸附量可达184.9mg/g,在乙醇体积分数50%时的解吸率达90.86%;采用NKA-2树脂分离纯化葛根素的的最优参数为:上样液质量浓度18mg/mL,乙醇体积分数60%,洗脱速率1BV/h,此时葛根素的得率可达90.06%,纯度可达82.18%。该工艺具有较好的实用性与参考价值。

关键词: 大孔吸附树脂, 葛根素, 纯化, 工艺参数

Abstract:

Macrosporous resin types D101, X-5, HD-101, D14, S-8, HC-D301, HD-8, D141, HPD100, HPD500, AB-8
and NKA-2 were compared for their adsorption and desorption capacities for the purification of puerarin from a crude
extract of Radix Puerariae. NKA-2 was found to have the strongest ability to adsorb puerarin with a static saturated
adsorption quantity of 184.9 mg/g and a desorption percentage of 90.86% by 50% ethanol. The optimal conditions for
purifying puerarin with NKA-2, as determined by orthogonal array design, were 18 mg/mL, 60% ethanol and 1 BV/h for
sample concentration, desorbent and desorption flow rate, respectively. Under the optimized conditions, the recovery
and purify of puerarin were 90.06% and 82.18%. The optimized process has potential practical applications for the
purification of puerarin.

Key words: macroporous resin, puerarin, purification, process parameters