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Biomed Chromatogr

Title:		Identification of volatile components in Angelica species using supercritical-CO2 fluid extraction and solid phase microextraction coupled to gas chromatography-mass spectrometry
Author(s):		Kim MR; Abd El-Aty AM; Choi JH; Lee KB; Shim JH;
Address:		"Natural Products Chemistry Laboratory, Institute of Agricultural Science and Technology, Chonnam National University, 300 Yong-Bong Dong, Buk-Ku, Gwangju 500-757, Republic of Korea"
Journal Title:		Biomed Chromatogr
Year:		2006
Volume:		20
Issue:		11
Page Number:		1267 - 1273
DOI:		10.1002/bmc.696
ISSN/ISBN:		0269-3879 (Print) 0269-3879 (Linking)
Abstract:		"As a part of our search for environmentally friendly solvents to extract the active components of medicinal plants, two sampling techniques, supercritical fluid extraction (SFE) using CO(2) and solid-phase microextraction (SPME) were compared for their efficacy in the analysis of volatiles rhizome components emitted from the medicinal herbs Angelica gigas NAKAI (Korean danggui), Angelica sinensis (Chinese danggui), and Angelica acutiloba (Japanese danggui). A total of 54 compounds released from all of these varieties of Angelica rhizomes were separated and identified by gas chromatography-mass spectrometry (GC-MS). The composition of supercritical extracts from these plants was very different from the solid-phase microextraction products. More compounds were detected by SPME-GC-MS (41) than by SFE-GC-MS (17). The results of these analyses suggest that SFE may be useful for detecting the main components, decursinol angelate and decursin in Korean danggui, and butylidene dihydro-phthalide in both Chinese and Japanese danggui, whereas the results for SPME did not. The SFE method required specialized instrumentation, required little time to prepare the sample, and had a small sample size and no organic solvent. In sum, these results suggest that SFE is useful for extracting the volatile main components of danggui cultivars. Its simplicity, low cost and speed may allow SPME to increase the recovery of volatile components in general without disturbing the main components of the plant"
Keywords:		"Angelica/*chemistry Chromatography, Supercritical Fluid/*methods Gas Chromatography-Mass Spectrometry/*methods Rhizome/chemistry Solid Phase Microextraction/*methods Volatilization;"
Notes:		"MedlineKim, Mi Ra Abd El-Aty, A M Choi, Jeong-Heui Lee, Kang Bong Shim, Jae Han eng Comparative Study Research Support, Non-U.S. Gov't England 2006/08/03 Biomed Chromatogr. 2006 Nov; 20(11):1267-73. doi: 10.1002/bmc.696"