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The chemical composition of Angelica glauca Edqew (Fam. Apiaceae) root volatile, from various locations in Alpine Himalayas at different phenological stages of plant growth was investigated by using GC, GC/MS and spectroscopic techniques. Terpene hydrocarbons (methyl octene, limonene, β-phellendrene, β-pinene), phthalides [(Z)-3-butyli-dene phthalide (Z)- and (E)-ligustilide] and citronellyl acetate showed large quantitative variations from flowering to dormancy stage and as well from different geographical locations.
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Thappa et al. (2005) studied this question.
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