GC-MS Analysis of the Volatile Compounds Derived from Elaeagnus Angustifolia under Different Extraction Conditions
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Abstract:
In this study, steam distillation, organic solvent extraction, vacuum pump extraction and adsorption, solid phase microextraction (SPME), and supercritical CO2 extraction were used to extract the volatile oil of E. angustifolia flower grown in Xinjiang, and examined the effects of these different extraction methods on of the profile of the obtained volatile compounds. Gas chromatography-mass spectrometry (GC-MS) was used to analyze and identify the chemical constituents of volatile oil from the E. angustifolia flowers, with the relative amount of each component being determined using the peak area normalization method. A total of 139 compounds were isolated and identified, including 22 hydrocarbon (21.3%), 10 aldehydes (1.38%), 47 esters (62.18%), 7 ketones (0.6%), 21 alcohols (9.52%), 14 acids (1.86%), 7 benzenes (1.66%), 5 phenols (1.14%), and 6 other species (0.33%). Among which, four kinds of components, namely2,3- butanediol, ethyl phenylacetate, phenethyl alcohol and ethyl trans-cinnamate were found.
