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超临界CO2萃取干姜的工艺优化
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| 篇名： | 超临界CO2萃取干姜的工艺优化 |
| TITLE： | |
| 摘要： | 目的：优化超临界CO2萃取干姜的工艺条件。方法：采用均匀设计法，以姜酚类成分6-姜酚、8-姜酚、10-姜酚的含量和干姜油萃取率的综合评分为指标，考察萃取压力、萃取温度、萃取时间3个因素对萃取效果的影响；同时进行验证试验。结果：优化的萃取工艺为压力25 MPa、温度30 ℃、时间2 h；验证试验中干姜油的平均萃取率为3.2％，综合评分为1.874 2（RSD＝0.65％，n＝3）；实测值与预测值的相对偏差为0.6％。结论：所得最优萃取工艺条件稳定可行，具有温度低、耗时短等优点。 |
| ABSTRACT： | OBJECTIVE： To optimize the technology of supercritical CO2 extraction from Zingiberis rhizoma. METHODS： With the comprehensive score of the contents of 6-ginger phenol， 8-ginger phenol and 10-ginger phenol and the extraction rate of the oil from Z. rhizoma as the index， uniform design method was adopted to investigate the effects of extraction pressure， extraction temperature and extraction duration on the extraction result； verification tests were conducted. RESULTS： The optimal conditions were as follows as the extraction pressure of 25 MPa， extraction temperature of 30 ℃ and extraction duration of 2 h. In the verification tests， the average extraction rate of the oil from Z. rhizoma was 3.2％ （n＝3）， and the comprehensive score was 1.874 2 （RSD＝0.65％， n＝3）， with the relative deviation of 0.6％ between the measured value and the predicted value. CONCLUSIONS： The optimal extraction technology is stable and feasible， with the advantages of low temperature， short duration. |
| 期刊： | 2016年第27卷第25期 |
| 作者： | 冯青云，周昌妮，陈书慧，徐如冰，田效志，贾永艳 |
| AUTHORS： | FENG Qingyun，ZHOU Changni，CHEN Shuhui，XU Rubing，TIAN Xiaozhi，JIA Yongyan |
| 关键字： | 干姜；超临界CO2萃取；均匀设计；姜酚类成分；提取率 |
| KEYWORDS： | Zingiberis rhizoma； Supercritical CO2 extraction； Uniform design； Ginger phenolic components； Extraction rate |
| 阅读数： | 257 次 |
| 本月下载数： | 2 次 |
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