Welcome to Chemistry and Industry of Forest Products,

Chemistry and Industry of Forest Products ›› 2021, Vol. 41 ›› Issue (4): 29-34.doi: 10.3969/j.issn.0253-2417.2021.04.005

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High Efficient Separation of Cedrol from Chinese Fir Essential Oil

Jiechen PAN1,2, Yichuan TANG4, Chengjie SHU2, Baojun SHI1,2,*(), Kai ZHU3, Wei LI1   

  1. 1. College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
    2. Nanjing Institute for Comprehensive Utilization of Wild Plants, Nanjing 211100, China
    3. Nanjing Forestry University, Nanjing 210037, China
    4. College of Acupuncture and Tuina, Nanjing University of Chinese Medicine, Nanjing 210029, China
  • Received:2020-11-17 Online:2021-08-28 Published:2021-08-31
  • Contact: Baojun SHI E-mail:jacksonshi@126.com


The light and heavy components were preliminarily separated from the cedar oil by vacuum distillation technology, and then the cedrol was separated by the method of freezing crystallization. The cedrol content in the isolate was analyzed by GC/MS to determine the optimal process. By studying the effects of different reflux ratio and total reflux time in the vacuum distillation process on the content of cedrol in the collected fractions, the final determination of vacuum distillation conditions were 2-3 kPa, total reflux time for 1h, reflux ratio of 3-7, the highest mass fraction of cedrol was 97.89%, the recovery rate was 87.52%. The collected highest fraction of cedrol was dissolved in ethanol, and then frozen and crystallized, and the purity of cedrol was finally reached 98.43%, the recovery rate was 83.61%.

Key words: Chinese fir essential oil, vacuum distillation, frozen and crystallized, cedrol, efficient separation

CLC Number: