Chemical Composition of the Essential Oils of Aerial Parts and Flowers ofChromolaena odorata(L.) R. M. King & H. Rob. from Western Ghats Region of North West Karnataka, India

Abstract

Abstract:The chemical composition of the essential oils of aerial parts and flowers of Chromolaena odorata (L.) R. M. King & H. Rob., collected from Western Ghats region, were obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC-MS). Fifty two and thirty four compounds were identified from aerial parts and flowers, representing 94.9 % and 95.2 % of the total oils, respectively. The essential oil from aerial parts was dominated by pregeijerene (14.2 %), epicubebol (9.8 %), cubebol (8.6 %), cis-sabinene hydrate (5.7 %), 10-epi-γ-eudesmol (3.8 %), germacrene-D-4-ol (3.6 %) and δ-cadinene (3.5 %), while germacrene D (24.8 %), geijerene (12.6 %), pregeijerene (12.5 %), cyperene (7.8 %), 10-epi-γ-eudesmol (4.7 %), α-muurolol (3.6 %) and khusimone (3.4 %) were identified as the major constituents of flowers oil of C. odorata.

Composición química y actividad antimicrobiana del aceite esencial de Plectranthus mollis (Lamiaceae) de la región de los Ghats occidentales, Karnataka, India

“…The relatively high heritability coefficients calculated for some essential oil components informing whether a character is more influenced by genetic or other factors, confirm that the potential to produce a certain chemical pattern is genetically coded, but the gene expression will be induced or repressed by environmental factors also (Franz, 1993). The presence of geijerene and pregeijerene from the essential oil of the leaves C. odorata has also been reported quantitatively different in various countries (Bedi, Tonzibo, & Nguessan, 2001;Bedi, Tonzibo, Chopard, Mahy, & Nguessan, 2004;Joshi, 2013c;Owolabi et al, 2010;Pisutthanan et al, 2006). This study also found that the major compounds of P. mollis were the same with quantitative differences.…”

<I>Artemia salina</I> Lethality and Histopathological Studies of Siam Weed, <I>Chromolaena odorata</I>

“…C. odorata or Siam weed is a scrambling perennial shrub which grows to 2-3 m in height with straight, pithy, brittle stems that branch readily. Phytochemical analysis has shown that C. odorata contains flavonoids 10 , terpenoids 11 , alkaloids 12 , essential oils 13 , tannins, and saponins 14 . The traditional uses or phytochemical properties of C. odorata are anticancer 15 , antidiabetic 16 , anti-inflammatory 17 , antimicrobial 18 , and antioxidant activities…”

Chemical Constituents and Toxicity Screening of Three Aromatic Plant Species from Peninsular Malaysia

“…Previous results demonstrate similar compounds in the essential oil of C. odorata leaf. This includes α-cadinol (2.19%), γ-cadinene (0.85%), δ-cadinene (3.5%), and germacrene D (2.1%) (Joshi 2013;Pitakpawasutthi et al 2016).…”

“…King & H. Rob is a perennial shrub (Asteraceae) (Suksamrarn et al 2004) that grows extensively until 3 m to 7 m in height (Joshi 2013). It is frequently identified as 'Siam' weed, and is locally known as kapal terbang.…”

“…This species has been introduced throughout Southeast Asia from its native Central and North American origins (Kouamé et al 2013). This plant is traditionally utilized for skin diseases and wound healing treatments (Joshi 2013) because of the abundance of essential oil in the leaves and stem (Moni and Subramoniam 1960). It has a wide range of bioactivities such as analgesic, antihelmintic, antiinflammatory, antimalarial, antimicrobial, and antioxidant (Omokhua et al 2016).…”