Essential oils from seven populations ofJuniperus brevifolia (Seub.) Antoine, an endemic species of the Azores

Silva, Jaime A. da; Pedro, Luís G.; Santos, Pedro A. G.; Figueiredo, A. Cristina; Barroso, José G.; Tenreiro, Rogério; Ribeiro, Carlos; Deans, Stanley G.; Looman, Anja; Scheffer, J. J. C.

doi:10.1002/(sici)1099-1026(200001/02)15:1<31::aid-ffj862>3.0.co;2-c

Cited by 19 publications

(4 citation statements)

References 21 publications

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“…Old stands of some size are now rare, since J. brevifolia has been widely used in shipbuilding and carved work due to the high quality of its wood. Apart from the papers published by Adams [2] and Silva [3], which include the chemical composition of essential oils of J. brevifolia, there are no phytochemical reports about this taxon. We become interested to study this plant due to the wide range of biological activity reported from other species of this genus and their constituents [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The chemical composition of hexane extract from bark ofJuniperus brevifolia

Seca

Silva

2008

Natural Product Research

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The phytochemical analysis of the bark of Juniperus brevifolia was undertaken for the first time. The GC-MS analysis of the hexane extract from bark of "cedro-do-mato" (J. brevifolia) allowed to identify three rare compounds for the first time in Juniperus genus: 6,7-dehydroferrugin-12-methyl ether, 11-hydroxy-6,7-dehydroferruginol and 6,7-dehydrohinokiol. The results also showed that the chemical composition of the extract were essentially abietane-type diterpenoids with alcohol function (44.9%) and with carbonyl function (8.6%). Fatty acids such palmitic, oleic, stearic and docosanoic acids were the second most abundant family of identified compounds (9.5%) and its value increased (12.7%) after alkaline hydrolysis, mainly due to docosanoic and tetradocosanoic acids. Sterols like sitosterol and stigmast-4-en-3-one, were also present (6.6%), along with esters of sterols (8.4%). Significant quantities of the long-chain aliphatic alcohols (ca 3.7%) were identified in the hexane extract only after alkaline hydrolysis.

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Section: Introductionmentioning

confidence: 99%

The chemical composition of hexane extract from bark ofJuniperus brevifolia

Seca

Silva

2008

Natural Product Research

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“…Although previous investigations of J. osteosperma essential oils did not include enantioselective GC-MS, there have been several reports on enantiomeric distributions in other Juniperus species (Table 4) [43][44][45][46]. There does not seem to be enantiomeric consistency in α-pinene, camphene, sabinene, terpinen-4-ol or α-terpineol.…”

Section: Enantiomeric Distributionmentioning

confidence: 93%

The essential oil composition of Juniperus osteosperma foliar essential oil from southern Idaho

Swor,

Poudel,

Satyal

et al. 2024

JEOPC

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Article InformationJuniperus osteosperma (Utah juniper) is an abundant tree within its range in the Great Basin. It is an important source of food for birds and mule deer and has served as traditional medicine for Native Americans. The purpose of this work is to examine essential oils of J. osteosperma growing in the northern limits of its range and to evaluate the enantiomeric distribution of chiral monoterpenoids. Monoterpene hydrocarbons (23.7-31.3%) and oxygenated monoterpenoids (58.5-70.1%) made up the bulk of the essential oil compositions. The main constituents in J. osteosperma essential oils were bornyl acetate (9.3-27.0%), camphor (3.9-31.1%), terpinen-4-ol (7.9-15.3%), sabinene (4.3-12.3%), αpinene (3.9-9.6%), limonene (2.6-5.2%), borneol (1.6-4.2%), trans-verbenol (up to 10.2%), p-cymene (1.2-4.9%), α-elemol (1.2-6.3%), and γ-terpinene (1.4-2.0%). Chiral GC-MS revealed (+)-α-pinene ( 99.5%), (+)-camphene ( 93.0%), (+)-sabinene (100%), (+)-βpinene (100%), (+)-limonene ( 97.7%), (+)-cis-sabinene hydrate ( 93.7%), (+)-transsabinene hydrate ( 95.8%), (+)-camphor ( 98.3%), (+)-α-terpineol (100%), and (+)verbenol (100%) to be the predominant enantiomers. The essential oil compositions of J. osteosperma from southern Idaho are similar to those from California, Nevada, and Utah, with bornyl acetate, sabinene, terpinen-4-ol and camphor dominating the essential oils. The reported biological activities of the major components are consistent with the Native American traditional uses of the plant.

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“…The previous examinations of J. occidentalis foliar essential oils did not include chiral GC-MS analyses. Nevertheless, there have been some studies on the enantiomers in other Juniperus species [37][38][39][40] . (+)-Limonene is the major enantiomer in Juniperus essential oils, in contrast to what is observed in members of the Pinaceae [41][42][43][44][45] where (-)limonene is the dominant enantiomer.…”

Section: Enantiomeric Distributionmentioning

confidence: 99%

“…Except for a sample of Juniperus brevifolia (Seub.) Antoine [37] , (+)-α-pinene is the predominant enantiomer in Juniperus essential oils.…”

Section: Enantiomeric Distributionmentioning

confidence: 99%

Chemical composition of the foliar essential oil of Juniperus occidentalis var. occidentalis from southeastern Oregon

Swor,

Poudel,

Satyal

et al. 2024

Am. J. Essent. Oil. Nat. Prod.

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The essential oil was obtained from the foliage of Juniperus occidentalis collected from Leslie Gulch, southeastern Oregon, by hydrodistillation. Gas chromatographic analysis revealed a total of 120 identified components with bornyl acetate (36.8%), p-cymene (9.9%), terpinen-4-ol (7.6%), and sabinene (6.2%) as major components. Enantioselective gas chromatography showed, for the first time, that (+)-αpinene, (+)-camphene, (+)-sabinene, (+)-β-pinene, (+)-δ-3-carene, (+)-limonene, (+)-cis-sabinene hydrate, (+)-camphor, (+)-terpinen-4-ol, (+)-borneol, and (+)-α-terpineol were the predominant enantiomers in J. occidentalis essential oil.

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Essential oils from seven populations ofJuniperus brevifolia (Seub.) Antoine, an endemic species of the Azores

Cited by 19 publications

References 21 publications

The chemical composition of hexane extract from bark ofJuniperus brevifolia

The chemical composition of hexane extract from bark ofJuniperus brevifolia

The essential oil composition of Juniperus osteosperma foliar essential oil from southern Idaho

Chemical composition of the foliar essential oil of Juniperus occidentalis var. occidentalis from southeastern Oregon

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