Abstract
Leaf and stem volatile oils were obtained differently from Hypoestes phyllostachya ‘Rosea’ (Acanthaceae) in 0.36 and 0.13% yields, respectively. GC-MS analyses revealed 38 compounds are responsible for 99.86% of the leaf oil, and 26 compounds make-up 99.89% of the stem oil. Identified compounds were 26 in leaf, which make-up 93.43% of it; 21 identified in stem, which represent 90.45% of it. Leaf oil is dominated by sesquiterpenoids (69.37%), while stem oil contain mostly sesquiterpene hydrocarbons (87.25%). Most abundant compounds in leaf oil are: �-elemenone (20.04%), 8-cendren-13ol (19.35%), 5-cendranone (10.60%), guaiol (4.43%), geranyl tinglate (4.30%) and germacrene B (4.21%). Prominent compounds in stem oil are: viridiflorene (31.28%), allo-aromadendrene (14.65%), acoradiene (6.99%), �-gurjunene (4.15%) and valencene (3.97%). The known ubiquitous monoterpenes are not in both leaf and stem essential oils. We report 20 other compounds in leaf oil, and 16 other compounds in stem oil as composition of Hypoestes phyllostachya ‘Rosea’ which is scarce in literature.
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