Identification and quantification of the volatile constituents in Cnidium monnieri using supercritical fluid extraction followed by GC‐MS |
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Authors: | Qinhua Chen Peng Li Fangjun Yuan Fanjun Cheng Jing He Jia Liu Zhuo Zhang |
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Institution: | 1. Affiliated Dongfeng Hospital, Yunyang Medical College, Hubei, P.R. China. Fax: +86‐719‐8272346;2. School of Medicine, Xi'an Jiaotong University, Xi'an, P.R. China |
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Abstract: | The volatile components of Cnidium monnieri were obtained by supercritical fluid extraction (SFE) and analyzed by GC‐MS (identification and determination of metabolites). The compounds were identified according to their retention times and mass spectra. The effects of different parameters, such as extraction pressure, temperature, dynamic extraction time, flow rate of CO2, on the SFE of C. monnieri extracts were investigated. A total of 14 compounds of SFE extracts were identified. Osthole (69.52%), bornyl acetate (10.03%), α‐pinene (4.71%), and imperatorin (2.42%) were the major compounds identified in C. monnieri SFE extracts. The quantitation of osthole and imperatorin were then accomplished. The linear calibration ranges were all 5–1000 μg/mL for osthole and imperatorin by GC‐MS analysis. The recovery of osthole and imperatorin were in the range 96.5–101.8%. The LODs for osthole and imperatorin were 1.0 and 0.6 μg/mL, respectively. |
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Keywords: | Cnidium monnieri GC‐MS Imperatorin Osthole Supercritical fluid extraction |
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