Xie Ji-Yun, Chen Xiao-Peng, Chen Fang
School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China.
Zhong Yao Cai. 2010 Sep;33(9):1480-4.
We studied the extracting process of shikimic acid from pine needles of Pinus elliottii Engelm, using pine needles of Pinus elliottii Engelm as raw materials, a high concentration of alcohol as the desorption and a low concentration of alcohol as the hot-extraction, and the decompressing inner ebullition method. Through the single factor test and orthogonal test, the best processing of the decompressing inner ebullition was as follows: when the concentration of alcohol was 70 percent with 18 minutes' desorption, the temperature of hot-extraction was 65 degrees C with 4 minutes' hot-extraction, solid-liquid ratio was 1:1.6 with 260 mL of hot-extraction, with a concentration of 30%. The extracting effect was the best when extracted twice. The extracting proportion of shikimic acid from dry pine needles of Pinus elliottii was 1.51%.
我们以湿地松松针为原料，采用高浓度乙醇解吸、低浓度乙醇热提，并结合减压内部沸腾法，研究了从湿地松松针中提取莽草酸的工艺。通过单因素试验和正交试验，得到减压内部沸腾法的最佳工艺条件为：乙醇浓度70%，解吸时间18分钟，热提温度65℃，热提时间4分钟，固液比1:1.6，热提溶剂260 mL，浓度30%。提取两次时提取效果最佳。湿地松干松针中莽草酸的提取率为1.51%。
