食品科学 ›› 2005, Vol. 26 ›› Issue (2): 119-122.

• 工艺技术 • 上一篇    下一篇

超临界CO2萃取结晶穿心莲内酯的工艺优化

 张文成, 潘见, 陈克勋   

  1. 农产品生物化工教育部重点实验室合肥工业大学; 中国科学技术大学化学与材料学院
  • 出版日期:2005-02-15 发布日期:2011-09-19

Study on the Technology Optimization on Extraction and Crystallization of Andrographolide by Supercritical CO2

 ZHANG  Wen-Cheng, PAN  Jian, CHEN  Ke-Xun   

  1. 1.Key Laboratory of Bioprocess of State Education Ministry, Hefei University of Technology;2.School of Chemistry and Material, University of Science and Technology of China
  • Online:2005-02-15 Published:2011-09-19

摘要: 以30%穿心莲内酯浸膏为原料,进行了穿心莲内酯的超临界CO2萃取结晶工艺优选研究。利用单因素实验法考察了压力、温度、时间对穿心莲内酯分离纯化的影响。结果表明:超临界C O2在萃取穿心莲内酯时,出现同步结晶,且在结晶板上呈梯度分布;选择的较佳工艺参数为压力20MPa,温度55℃,时间90min,流量15L/min时,得到的穿心莲内酯的纯度超过80%。

关键词: 超临界CO2, 萃取, 结晶, 梯度分布, 穿心莲内酯

Abstract: To separate and purify andrographolide by supercritical carbon dioxide extraction and crystallization with 30% andrographolide material. The single factor method to investigate the effect of technology parameters: pressure, temperature and time on purity of andrographolide was adopted. The result was that there was synchronous crystallization in separation and purity of andrographolide by supercritical CO2 extraction, and gradie of appeared distributin on the crystal board. When we selected the parameters pressure 20MPa, temperature 55℃, and time of crystallization 90min, the purity of andrographolide was more than 80%.

Key words: supercritical carbon dioxide, extraction, crystallization, gradient distribution, andrographolide