摘要
在进行冬凌草规模化提取研究中,提取冬凌草甲素的同时还会夹杂大量色素及油脂类杂质,严重干扰冬凌草甲素的分离纯化。作者对脱色除杂方法进行了系统研究。采用大孔吸附树脂吸附、石油醚萃取、醇提水沉、活性炭回流、活性炭超声波5种方法进行研究与比较,确定出最佳脱色除杂方法为活性炭超声波。通过正交试验,确定出活性炭超声波的最佳工艺为:用占药材干重5%活性炭超声波提取2次,每次20min。
In the process of large-scale extracting research of oridonin, a large amount of components of pigment and fat were also extracted as impurities. A systematic research on method of decolorization and impurity-elimination was carried out, by adopting 5 methods respectively for comparison, namely： adsorption with big-bore resin, extraction with petroleum ether, extraction with ethanol and sedimentation with water, refluxing with activated carbon, ultrasonic treatment with activated carbon. The best method was determined as ultractionic treatment with activated carbon. Through orthogonal test, the optimum condition was： twice ultrasonic treatments with 5 % of activated carbon, ultrasonic treatment for 20 min each time.
出处
《林产化学与工业》
EI
CAS
CSCD
2005年第3期25-28,共4页
Chemistry and Industry of Forest Products
关键词
冬凌草
甲素
活性炭
超声波提取
Rabdosia rubescens（ Hemsl. ） Hara
oridonin
activated carbon
ultrasonic treatment
