Terpene constituents of the leaves of five Vietnamese species of Clausena (Rutaceae)

Abstract

This article reports the compounds identified in the leaf oils of five Clauseana species growing in Vietnam. The hydrodistilled oils were analysed for their chemical constituents by using gas chromatography-flame ionisation detector and gas chromatography coupled with mass spectrometry. The major compounds identified in Clausena dentata (Willd.) M. Roem. were α-pinene (21.7%), sabinene (18.3%) and β-myrcene (14.3%). Clausena dimidiata Tanaka comprised mainly of safrole (56.9%) and α-terpinolene (22.1%). However, 1-menthone (70.6%) and β-phellandrene (13.0%) were the most abundant compounds of Clausena indica (Dalz.) Oliver. Sesquiterpene compounds represented mainly by β-caryophyllene (16.7%), spathulenol (11.9%) and bicyclogermacrene (7.5%) were the major constituents of Clausena excavata Burm. f., while those of Clausena engleri Tanaka include bicycloelemene (12.1%), bicyclogermacrene (11.0%) and (E)-nerolidol (6.6%). This is the first report on the chemical analysis of essential oils of C. dimidiata and C. engleri.

Study on Cinnamomum Oils: Compositional Pattern of Seven Species Grown in Vietnam

“…26 . These may largely be responsible for the observed compositional variations between the studied oil samples and previously reported results from Vietnam.…”

Bio-Guided Isolation of Prospective Bioactive Constituents from Roots of Clausena indica (Dalzell) Oliv

“…Later studies have isolated various coumarins, amides and carbazole alkaloids from this plant [3][4][5][6]29,30]. Apart from those components, terpenes and volatile constituents were investigated with potential antimicrobial and antibacterial activities in the essential oil of C. indica aerial parts [1,2,31]. In the present study, the first detection of dentatin, nordentatin, clausine K and other promising alkaloids may contribute to the diversity of natural products as well as the medicinal potentials of C. indica.…”

Evaluation of in vitro Cytotoxicity of Essential Oil from Clausena dentata (Willd) Grown in Western Ghats Region, South India

“…The chemical composition of essential oil from pasirimalai forest region showed 12 components and major compounds were sabinene (28.57 %), borneol (14.62), δ-cadinol (12.49), β-bisabolol (15.56 %) and biofloratriene (18.54 %) [5]. Vietnamese plant leaf essential oil contains α-pinene (21.7 %), sabinene (18.35 %), β-amyrine (14.3 %) β-caryophyllene (8.9 %) and β-pinene are the major compounds [7]. Similarly, 14 different compounds were obtained by GC-MS analysis in which sabinene of 21.27 %, biofloratriene of 19.61 %, borneol of 18.34 % and β-bisabolol of 17.68 % were the major compounds [6].…”

“…Traditionally the leaf juice is applied to the injured eye and leave paste is used for curing wounds [3,4]. The chemical composition of essential oil of the C. dentata in different part of the world were sabinene, borneol, δ-cadinol, β-bisabolol, biofloratriene α-pinene, β-amyrine β-caryophyllene and β-pinene [5][6][7][8]. The secondary metabolites like α-clausenan, rosesenan (α-clausenan), diclausenans A and B and furano terpenes [9].…”