天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (1): 83-89.doi: 10.16333/j.1001-6880.2016.1.015

• 研究简报 • 上一篇    下一篇

永州香樟叶精油的提取及其季节含量变化

陈铁壁1,2*，全沁果3，段丽萍1，杨明3，阳建章1，李聪1   

  1. 1 湖南科技学院化学与生物工程学院，永州 425199；2 湘南优势植物资源综合利用湖南省重点实验室湖南科技学院，永州425199；3 中国农业科学院农产品加工研究所 农业部农产品加工质量安全风险评估实验室，北京100193
  • 出版日期:2016-01-29 发布日期:2016-02-01

Extraction and Content Variation of Essential Oils from Cinnamomum camphora (L.) Leaf in Yongzhou

CHEN Tie-bi1,2*,QUAN Qin-guo3,DUAN Li-ping1,YANG Ming3,YANG Jian-zhang1,LI Cong1   

  1. 1 Department of Biochemistry,Hunan University of Science and Engineering,Hunan Yongzhou 425199,China; 2 Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South,Hunan University  of Science and Engineering,Hunan Yongzhou 425199,China; 3 Institute of Agro-products Processing Science and Technology,Chinese Academy of Agricultural Sciences;Laboratory of Agro-products Quality Safety Risk Assessment (Beijing),Ministry of Agriculture,Beijing 100193,China
  • Online:2016-01-29 Published:2016-02-01

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摘要： 本实验以永州香樟叶为原料，优化了超临界CO2萃取制备香樟叶精油的工艺条件。结果显示，超临界CO2萃取香樟叶精油的最适工艺条件为：CO2流量20 L/h，萃取压力18 MPa，萃取温度46 ℃，萃取时间1.6 h，在此工艺条件下永州香樟叶精油萃取率可达到98.37%，高出索氏提取法42.97%，高出水蒸气蒸馏法26.69%。当加入0.6% CO2流量的乙醇作为夹带剂萃取时间缩短了26 min，可进一步节省能耗。同时研究了永州香樟叶精油在一年内各季度的变化规律，发现夏秋两季精油含量水平较高，而春冬两季较少，在1月含量达到最低。

关键词: 香樟叶, 精油, 提取

Abstract: In this study,a supercritical CO2 extraction method was optimized for the extraction of essential oil from Cinnamomum camphora (L.) leaf. Results showed that the optical extraction conditions of were:CO2 flow rate of 20 L/h,extraction pressure of 18 MPa,temperature of 46 ℃,extraction time of 1.6 h. Under these conditions,the extraction rate of essential oil from C. camphora can reach 98.37%,higher than Soxhlet extraction by 42.92%,and higher than vapor distillation by 26.96%. When 0.6% ethanol was added as co-solvent on supercritical CO2 extraction,the extraction time can be shortened by 26 min,which contributed to reduce the cost. The research on the variation law of C. camphora leaf oil was also carried out,results showed that the content of C. camphora leaf oil in Summer and Autumn was higher than in Spring and Winter,which touching the bottom in January.

Key words: Cinnamomum camphora (L.) leaf, essential oil, extraction

中图分类号: 

R284.2

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