2011
DOI: 10.2298/fupct1101057p
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Chemical composition and mosquito repellent activity of the essential oil of Plectranthus incanus link

Abstract: The chemical composition of the essential oil obtained from the leaves of Plectranthus incanus Link, with the yield of 0.6% (w/v), was analyzed by GC and GC/MS. A total of 16 constituents, representing 95.2% of the oil, were identified. The major components of the oil were fenchone (6.0%), piperitone oxide (32.4%), piperitenone (3.0%) and piperitenone oxide (41.5%). The repellent activity of the volatile oil at different concentrations was measured by the protection period against the bites of Anopheles … Show more

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Cited by 9 publications
(23 citation statements)
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“…The terpenoid profiles reported from other parts of Northern India (Pal, Kumar, & Tewari, 2011;Shah, Bhandari, & Mathela, 1992) in terms of major constituents are somehow similar to this study, but different in term of the sesquiterpenes. The quantitative and qualitative divergence may be due to the geographical, climatic, and soil conditions, which in turn may affect the composition and other secondary metabolites of the plants (Joshi, Badakar, Kholkute, & Khatib, 2011;Joshi, 2012).…”
Section: Discussionsupporting
confidence: 85%
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“…The terpenoid profiles reported from other parts of Northern India (Pal, Kumar, & Tewari, 2011;Shah, Bhandari, & Mathela, 1992) in terms of major constituents are somehow similar to this study, but different in term of the sesquiterpenes. The quantitative and qualitative divergence may be due to the geographical, climatic, and soil conditions, which in turn may affect the composition and other secondary metabolites of the plants (Joshi, Badakar, Kholkute, & Khatib, 2011;Joshi, 2012).…”
Section: Discussionsupporting
confidence: 85%
“…The seeds of P. mollis are fried in mustard oil and then massaged all over the body as an insect repellant (Jain, Singh, & Puri, 1994). The essential oil composition fenchone, piperitone oxide, piperitenone and piperitenone oxide (Pal, Kumar, & Tewari, 2011); cis-piperitone oxide and piperitenone oxide (Shah, Bhandari, & Mathela, 1992) have been reported from Northern India. Review of literature exposed that the essential oil of P. mollis (Syn.…”
mentioning
confidence: 99%
“…The main compound of the polar extract of P. ecklonii is rosmarinic acid (RA) ( Rice et al, 2011 ), a common phenolic ester in the Lamiaceae family ( Amoah et al, 2016 ). RA ( Rice et al, 2011 ) together with two other esters of caffeic acid (CA) ( Pal et al, 2011 ), nepetoidine A ( Van Jaarsveld, 2006 ) and nepetoidine B ( Nyila et al, 2009 ), are used as chemotaxonomic markers of the Nepetoideae subfamily ( Grayer et al, 2003 ; Kubínová et al, 2013 ). Until now, a total of 28 compounds have been isolated from P. ecklonii , constituting a variety of different classes of plant compounds.…”
Section: Isolated Compounds From Plectranthus Ecklonii Benthmentioning
confidence: 99%
“…The main phenolic compounds identified in the extracts of Salvia and Plectranthus are the hydroxycinnamic acids and their derivatives, such as rosmarinic ( Rice et al, 2011 ), chlorogenic ( Chassagne and Morgan, 2020 ) , carnosic, and salvianolic acids. Among the most abundant cinnamic acids is caffeic acid (CA) (3,4-dihydroxycinnamic acid) ( Pal et al, 2011 ), described as having a wide variety of biological activities, including antioxidant, antithrombotic, antihypertensive, antifibrotic, antiviral, and antitumour properties ( Rajendra Prasad et al, 2011 ). While the isolation of hydroxycinnamic acids is mostly described in the literature in aqueous extracts, in the case of P. ecklonii there have been attempts by scientists to test other extracts, specifically hydroalcoholic extracts.…”
Section: Isolated Compounds From Plectranthus Ecklonii Benthmentioning
confidence: 99%
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