Enantiomeric composition of terpenic hydrocarbons in essential oils from Juniperus communis L.

Sybilska, Danuta; Asztemborska, Monika; Kowalczyk, Joanna; Ochocka, Renata; Ossicini, L.; Pérez, G.

doi:10.1016/0021-9673(94)85081-x

Cited by 35 publications

(16 citation statements)

References 15 publications

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“…Vernin et al (1988) identified 64 sesquiterpenes from French juniper leaves. The largest components of the monoterpenes are usually α-pinene (17-77%) and sabinene (0.2-41%) (Sybilska et al 1994;Valterová et al 1997;Mastelic et al 2000;Butkiene et al 2006). As can be seen, sabinene is particularly variable and may be more abundant than α-pinene: Looman & Svendsen (1992) found the main oil components of Juniperus communis var.…”

Section: (Iv) Nutritionmentioning

confidence: 98%

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Biological Flora of the British Isles: Juniperus communis L.

2007

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Summary1. This account reviews information on all aspects of the biology of Juniperus communis that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles : distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history and conservation. 2. Juniperus communis (juniper) is an evergreen dioecious gymnosperm shrub with two main population centres in Britain, one on chalk downlands of southern England and the other in northern England and Scotland. British populations are divided into two main subspecies although there is overlap in genetic and morphological features. Subspecies communis varies from a spreading shrub to an erect tree characteristic of calcareous soils in southern England, various soils in the Scottish highlands, while ssp. nana is a small procumbent shrub, restricted to well-drained bogs and, more usually, rocky outcrops, generally as a minor component of upland heaths and montane scrub. Both subspecies are drought and frost tolerant, although sensitive to fire. A third subspecies, hemisphaerica , primarily found in mountains of southern Europe has two small populations on maritime cliffs in the UK. 3. Although not very palatable, J. communis is grazed by small and large mammals when food is short, particularly in winter. Its low palatability is derived from oils found in the needles, cones and wood, dominated by monoterpenes. These have been extensively used in folklore medicine and to flavour alcoholic drinks, and are being investigated for new medicinal uses. 4. Juniperus communis ssp. communis is a characteristic light-demanding invader of pasture but has declined due to agricultural expansion, erosion, overgrazing, fire and poor regeneration, such that it is now rare and threatened across lowland/southern Europe. Although susceptible to overgrazing, some grazing can be beneficial to create the open sward necessary for seedling establishment. Other limits to regeneration are: progressively ageing stands in which male plants predominate; increasing fragmentation of stands that reduces pollination efficacy; and high seed dormancy with consequent variable germinability.Key-words : climatic limitation, communities, conservation, ecophysiology, geographical and altitudinal distribution, germination, herbivory, mycorrhiza, parasites and diseases, reproductive biology, soilsJournal of Ecology (2007) 95 , 1404-1440 doi: 10.1111/j.1365-2745.2007.01308.x *Abbreviated references are used for many standard works: see Journal of Ecology (1975), 63 , 335 -344. Nomenclature of vascular plants follows Flora Europaea and, where different, Stace (1997). †Author to whom correspondence should be addressed: P. A. Thomas. E-mail: p.a.thomas@biol.keele.ac.uk. Pinopsida (Coniferae), Cupressaceae. The junipers are a taxonomically difficult group, composed of about 68-80 s...

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Section: (Iv) Nutritionmentioning

confidence: 98%

“…(1988) identified 64 sesquiterpenes from French juniper leaves. The largest components of the monoterpenes are usually α‐pinene (17–77%) and sabinene (0.2–41%) (Sybilska et al . 1994; Valterová et al .…”

Section: Structure and Physiologymentioning

confidence: 99%

Biological Flora of the British Isles: Juniperus communis L.

2007

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“…That fraction is probably responsible for the oil biological properties. The main monoterpenes and their enantiomeric forms were analysed in detail in numerous studies (Vernin et al , 1988;Sybilska et al , 1994;Ochocka et al , 1997). The anti-microbial activity of juniper oil is mentioned in all of them.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and antifungal activity of juniper berry oil and its selected components

Filipowicz

Kamiński

Kurlenda³

et al. 2003

Phytotherapy Research

200

117

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Juniper berry oil is stated to possess a wide spectrum of pharmacological activities and its monographs are included in some National Pharmacopoeias. The antibacterial and antifungal activity of the oil was reported by some authors. In our study we estimated the antibacterial and antifungal activity of three different juniper berry oils and their main components. All the micro-organisms used in this experiment were isolated from patients of Regional Hospital of Gdańsk and some of them showed resistance against commonly used antibiotics. Only one of the oils (labelled A) revealed good antimicrobial properties. None of the single oil components was a stronger antibacterial and antifungal inhibitor than the oil A itself. Our data suggest that the antimicrobial activity of juniper oil A is the result of either the specific composition of the oil A (highest concentration of (-)-alpha-pinene, p-cymene and beta-pinene) or activity of a single non-identified compound. The presence of an adulterant in the oil was excluded.

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“…Many of the compounds identified in juniper berries are chiral so an enantiomeric composition can be observed. The first work about the enantiomeric composition of chiral volatile organic compounds (VOCs) in J. communis was published by Sybilska et al in 1994 . Later, Ochocka et al investigated the chiral and achiral composition of monoterpenic hydrocarbons in juniper oils.…”

Section: Introductionmentioning

confidence: 99%

Enantiomeric distribution of major chiral volatile organic compounds in juniper‐flavored distillates

Pažitná

S̆pánik

2014

J of Separation Science

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The enantiomeric ratios of chiral volatile organic compounds in juniper-flavored spirits produced by various processing technologies in different EU countries were determined by multidimensional GC using solid-phase microextraction and liquid-liquid extraction as a sample pretreatment procedure. In total, more than 260 compounds were detected in studied spirits from which linalool, α-terpineol, 4-terpineol, linalool oxides, α-pinene, and verbenone were selected for enantiomeric separation. The significant differences in enantiomeric ratio of linalool and cis-linalool oxide allowed us to distinguish between samples produced in Slovakia and the United Kingdom from those produced in Germany, Czech Republic, and Belgium. The pure enantiomer of trans-linalool oxide was found only in samples from Germany. It was shown that the enantiomeric ratio is independent of the sample treatment procedure, and only small differences up to 1% were observed.

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Enantiomeric composition of terpenic hydrocarbons in essential oils from Juniperus communis L.

Cited by 35 publications

References 15 publications

Biological Flora of the British Isles: Juniperus communis L.

Biological Flora of the British Isles: Juniperus communis L.

Antibacterial and antifungal activity of juniper berry oil and its selected components

Enantiomeric distribution of major chiral volatile organic compounds in juniper‐flavored distillates

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