Essential Oils in Some Stachys Species Growing in Hungary

Abstract

The volatile oil compositions of five Stachys species (Stachys officinalis L., St. grandiflora Host., St. byzantina Koch., St. germanica L. and St. sylvatica L.) have been studied using a GC/MS technique. All species gave low yields of oil. From St. officinalis 38 compounds were separated and partly identified, from St. grandiflora 24, St. byzantina 30, St. germanica 29 and St. sylvatica 43. All the samples contained o-ocymene, β-phellandrene, γ-terpinene, linalool, trans-and cis-pinocamphone, βcaryophyllene, δ-cadinene and α-cadinol. The steam distilled oils were poor in mono-but rich in sesquiterpenes. Some of the sesquiterpenes, like germacrene D, epi-cubebol, and αand γ-muurolene are reported in Stachys species for the first time. The iridoids, harpagide and 8-O-acetyl-harpagide, were identified by TLC in the MeOH extracts of St. sylvatica, St. byzantina, St. officinalis (Betonica officinalis) and Betonica serotina. Taking other chemical constituents also into account Stachys species seem to be similar to those of the subfam. Lamioideae (according to Erdtman's classification).

Determination of the volatile constituents and total phenolic contents of some endemic Stachys taxa from Turkey

“…swainsonianeae [8], and S. lavandufolia [9,10] were also reported to be sesquiterpene hydrocarbons. In addition, it was found that some Stachys species contain similar amounts of sesquiterpene hydrocarbons and oxygenated mono-and sesquiterpenes, such as S. byzantina, S. grandiflora and S. sylvatica [11], S. balansae [12], S. alopecuros, S. spinulosa [7], and S. oblique [13]. Our findings were generally similar to the literature results for the major components, with minor differences in the research parameters.…”

Türkiye’den Üç Stachys L. Türünün Uçucu Bileşenleri

“…annua var. annua had been reported before [16][17][18][19][20][21][22], but there is no literature data for the comparative evaluation of the volatile chemical composition obtained from S. macrantha, S. sylvatica and S. annua ssp. annua var.…”

“…Bulgaria, Kosova, Croatia, Italy and Hungary originated S. sylvatica samples were previously studied by different groups and sesquiterpene lactones were reported as the major group of substances at all of the works [16][17][18][19][20][21]. Germacrene D was found to be the major component at Hungary, Kosovo and Italy originated samples.…”

“…Bulgaria, Kosova, Croatia, Italy and Hungary originated S. sylvatica samples together with S. macrantha samples which were collected from Hungary were previously studied by different groups and sesquiterpene lactones were reported to be the major group of substances at all of researches. Essential oils were obtained by hydrodistillation at all of these previous studies [16][17][18][19][20][21]. However the head space volatile organic compounds of the same species grown in Turkey has not been investigated previously.…”

Composition of Essential Oils from Leaves and Flowers of Stachys Germanica Subsp. Salviifolia (Ten.) Gams (Labiatae) and Related Secretory Structures

“…Germacrene D was the main constituent of the leaf essential oil, but only the third major constituent of the flower essential oil. Phytochemical investigations of this subspecies from Croatia [11] and from different subspecies of S. germanica from the Balkan regions [12][13][14] and from Hungary [15] have been reported. Germacrene D represents the main compound in all the investigated samples, while the other major constituents of our samples are either lacking or are present in very small amounts in the plants of other origins.…”