Composition and Chemical Variation of the Essential Oil ofLepechinia salviaefolia(Kunth) Epl. from Venezuela

Abstract

Fuiidacio'n lnstituto Bota'nico de Venezuela, Apto. 21 56,101 0-A Caracas, Venezueh AbstractThe chemical composition of the leaf oil of Lepechinin snlzjinefolin (Kunth) Epl. was determined by means of GC and GC/MS. Plant material from 60 individual plants was investigated and the quantitative oil data were analyzed by a multivariate statistical analysis revealing two chemotypes. The major constituents ofthe palustrol-type (28 samples) were (-)-palustrol (19.1%), p-phellandrene (13.8%), borneol (11.8%) and camphene (7.2%). The oil of the premnaspirodiene-type (Xsamples) was dominated by p-phellandrene (13.3%), borneol(12.3%), (-)-premnaspirodiene (9.4%) and cainphene (8.5%). The presence of a third chemotype (5 samples) with 6-3-carene (12.9%), T-cadinol (9.1%) and borneol(8.4%) became evident but has to be substantiated by analysis of further samples of plant material.

Composition of the essential oils of four medicinal plants from Ecuador

“…has been reported previously, [6][7][8][9][10][11][12] showing a great variety of composition patterns. β-Phellandrene, the main component of the oil of L. mutica, has been found in percentages higher than 10% only in L. chamaedrys 9 and L. salviaefolia.…”

Study of the essential oils from the leaves and flowers ofLepechinia conferta (Benth) Epl.

“…. (12) studied L. salviaefolia collected at different paramos around Merida; two chemotypes were found, one of them rich in (-)-palustrol (19.1%), β-phellandrene (13.8%) and borneol (11.8%), the other was dominated by β-phellandrene (13.3%), borneol (11.8%) and (-)-premnaspirodiene (9.4%). Velasco-Negueruela et al .…”

Chemical Composition, Enantiomeric Analysis, AEDA Sensorial Evaluation and Antifungal Activity of the Essential Oil from the Ecuadorian Plant Lepechinia mutica Benth (Lamiaceae)

“…Some species are used for their antitumor and insulin-mimetic properties, to treat uterine infections and stomach pains. [1] Regarding the essential oil components, 15 species of the genus Lepechinia have been studied so far, including L. conferta, [1] L. floribunda, [2 -5] L. graveolens, [3] L. caulescens, [6] L. paniculata, [7] L. betonicifolia, [8] L. meyeni, [3] [9] L. salviaefolia, [10] L. bullata, [11] L. calycina, [12] L. schiedeana, [13 -15] L. urbanii, [16] L. chamaedryoides, [17] L. radula. [18] In Table 1, we have reported the major compounds from some Lepechinia species.…”

“…Thus GC-O may be considered a biological detection method for the Table 1. Major components in the essential oils of genus Lepechinia Major compound L. conferta [1] L. floribunda [2 -5] L. graveolens [3] L. caulescens [6] L. paniculata [7] L. betonicifolia [8] L. meyeni [3 -9] L. salviaefolia [10] L. bullata [11] L. calycina [12] L. schiedeana [13 -15] L. urbanii [16] L. chamaedryoides [17] L. radula [18] (À)-Palustrol characterization of the odor of compounds separated and quantified by GC chromatography. [21] Indeed, the correlation of the eluted peaks with specific odors affords to establish accurate retention indices or retention times for the odor active components, while peak areas in the GC-FID chromatogram are indicative of the relative abundance of the components.…”