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荆芥挥发油的超临界CO2萃取分离及GC-MS分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2007年05期
Page:
25-28
Column:
研究论文
publishdate:
2007-05-20

Article Info:/Info

Title:
Supercritical CO2 Extraction of Volatile Oil from Schizonepeta tenuifolia Briq. and GC-MS Analysis
Article ID:
1000-2006(2007)05-0025-04
Author(s):
CAI Shuang-fei1 CHENG Kang-hua1* LINGHU Rong-gang2
1. College of Chemical Engineering Nanjing Forestry University, Nanjing 210037, China; 2. Linyi Forestry Bureau of Shandong Province, Linyi 276000, China
Keywords:
Schizonepeta tenuifolia Briq. Volatile oil Supercritical CO2 extraction GC-MS
Classification number :
TQ028.32;TQ91
DOI:
10.3969/j.jssn.1000-2006.2007.05.006
Document Code:
A
Abstract:
Orthogonal test of supercritical carbon dioxide extraction was carried out to obtain optimum condition as follows: pressure 25MPa, temperature 45℃, time 100 minutes, flow rate of CO2 30kg/h. The yield of volatile oil 1.3163%. GC-MS was used to analyze the components and determine their content. It showed that the main components of volatile oil from Schizonepeta tenuifolia Briq. are pulegone and menthone. However, dihydrojasmone and terrein which had never been reported in surveyed literature have been identified. It was the first time to use two-step separation method to purify the volatile oil from Schizonepeta tenuifolia Briq.. The result showed that by using two-step method, the content of the unsaturated fat acid and its ester from Schizonepeta tenuifolia Briq. decreased effectively. It was also seen that the content of pulegone and menthone increased dramatically compared to one-step method. Therefore, two-step method is a good method for purifying volatile oil from Schizonepeta tenuifolia Briq.. It can be used in industries.

References

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Last Update: 2013-05-20