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  • Title: [Orthogonal experiment using SFE-CO2 in extraction of essential oil from fresh Houttuynia cordata and analysis of essential oil by GC-MS].
    Author: Meng J, Dong XP, Zhou YS, Jiang ZH, Leung KS, Zhao ZZ.
    Journal: Zhongguo Zhong Yao Za Zhi; 2007 Feb; 32(3):215-7. PubMed ID: 17432141.
    Abstract:
    OBJECTIVE: To optimize the extraction procedure of essential oil from H. cordata using the SFE-CO2 and analyze the chemical composition of the essential oil. METHOD: The extraction procedure of essential oil from fresh H. cordata was optimized with the orthogonal experiment. Essential oil of fresh H. cordata was analysed by GC-MS. RESULT: The optimize preparative procedure was as follow: essential oil of H. cordata was extracted at a temperature of 35 degrees C, pressure of 15,000 kPa for 20 min. 38 chemical components were identified and the relative contents were quantified. CONCLUSION: The optimum preparative procedure is reliable and can guarantee the quality of essential oil.
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