2009•Tianran chanwu yanjiu yu kaifaRequires access
Effect of Continuous Cropping on the Essential Oils of Angelica sinensis (Oliv.) Diels
Huizhen Wang
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Abstract
This research is to compare with the yield and constituent of the essential oils extracted from the Angelica sinensis(Oliv.)Diels in different rotation system.Water steam and GC-MS were used.The yields of the essential oil of Angelica sinensis are 0.95%,0.75%,0.70%,0.64%,respectively in potato-wheat-Angelica sinensis,Angelica sinensis-wheat-Angelica sinensis,wheat-Angelica sinensis-Angelica sinensis,Angelica sinensis-Angelica sinensis-Angelica sinensis.The relative amounts of Ligustilide of essential oil are 71.62%,49.04%,29.49%,59.58%,respectively.The relative amounts of phthalic anhydride and 1,4-cyclohexadiene-1,2-dicarboxylic anhydride(which is isomerization products form Ligustilide) of essential oil are 0.21% and 4.47%,3.81% and 8.55%,6.48% and 10.65%,1.04% and 5.33%.The yields of the essential oil and the relative amounts of ligustilide are different considerably,while the constituents of the essential oil of Angelica sinensis from different rotation systems are identical.