The Essential Oils of the Aerial Parts of TwoHypericum (H. pseudolaeveRobson andH. thymbrifoliumBoiss. & Noë) (Guttiferae) Species from Turkey

Abstract

In this study, essential oil composition of two Hypericum L. (Hypericum pseudolaeve Robson and H. thymbrifolium Boiss. & Noë ) species grown in Turkey were determined by using GC and GC-MS system. The essential oils obtained by hydrodistillation from the aerial parts of plants. Forty-five compounds were identified in the essential oils of H. pseudolaeve; transcaryophyllene (23.92 %), δ-limonene (11.19 %), α-cadinol (10.67 %), caryophyllene oxide (7.96 %), α-pinene (5.76 %), spathulenol (5.21 %) and β-selinene (3.02 %). Fifty-four components were identified in H. thymbrifolium oil, α-pinene (51.31 %), undecane (4.94 %), germacrene D (4.70 %), β-pinene (3.68 %), β-myrcene (3.30 %), spathuleneol (2.92 %) and naphthalane (1.88 %) were determined as the main constituents. Monoterpenes were shown to be the main group of the H. thymbrifolium, while the H. pseudolaeve were more rich in sesquiterpenes. The results have supplied contributions on the usability of oils as renewable resources and chemotaxonomy of plants.

Yield and Composition of the Essential Oil of the Opopanax Genus in Turkey

“…The chemical analysis results of O. siifolius showed that this species may be a different group and could be transferred to a genus different from Crenosciadium. As in our previous studies, the chemical analysis results supported the morphological data [ 71 , 72 ].…”

Analysis of the Essential Oils of two Hypericum species (H. Lanuginosum var. lanuginosum Lam. and H. perforatum L.) from Turkey

“…capitatum and var. luteum [8], H. thymbrifolium and H. pseudolaeve [6], H. avicularifolium subsp. depilatum var.…”

“…Hypericum species have been reported to contain many bioactive compounds, namely naphthodianthrones, phloroglucinols, flavonoids, phenylpropanes, essential oils, amino acids, xanthones, tannins, procyanidins and other components, which possess a wide array of biological properties [2][3][4]. Major/high component of the Hypericum essential oils are 1-hexanal, α-pinene, pinene, 3-methylnonane, 3-methyldecane, caryophyllene oxide, spathulenol, germacrene D, camphor, limonene and trans-caryophyllene [5][6][7][8][9]. Variations in the essential oils composition of many species of this genus were previously reported, and depending on genetic and environmental factors, seasonal variation, plant organs and analytical methods used [10][11][12].…”

Determination of essential oil and biological activities of Hypericum ternatum Poulter and H. scabrum L. species collected from different localities: is H. scabrum an alternative to multifunctional species ST JOHN'S WORT (H. perforatum)?

“…var. elongatum (Ledeb) Woron [ 11 ]; tr -caryophyllene (23.92%), limonene (11.19%), and α-cadinol (10.67%), caryophyllene oxide for H. pseudolaeve Robson [ 12 ]; α-pinene (71.2%), caryophyllene oxide (2.9%), and caryophylladienol I (0.6%) for H. lydium [ 13 ]; and germacrene D (30.2%) and α-pinene (21.5%) for H. confertum Choisy [ 14 ] were determined to be the predominant compounds in the essential oils.…”