Foliar Essential Oil of White Fir (<i>Abies concolor</i> (Gordon) Lindl. ex Hildebr.): Chemical Composition and Enantiomeric Distribution

Swor, Kathy; Poudel, Ambika; Rokaya, Anil; Satyal, Prabodh; Setzer, William N.

doi:10.1177/1934578x221086901

Cited by 5 publications

(5 citation statements)

References 10 publications

(23 reference statements)

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“…Consistent with these findings, the (−)-enantiomers predominate for camphene, β-pinene, limonene, β-phellandrene, and α-terpineol in the Pinaceae essential oils of Abies concolor , Abies balsamea [ 47 ], Picea pungens [ 48 ], Pinus ponderosa , Pinus contorta , and Pinus flexilis [ 11 ]. Likewise, while (+)-α-thujene was the exclusive enantiomer in T. plicata , (−)-α-thujene was dominant in A. concolor and A. balsamea [ 47 ]. Furthermore, in the wood essential oils of Sequoia sempervirens (Cupressaceae), (+)-α-pinene, (+)-limonene, and (+)-α-terpineol predominated [ 49 ].…”

Section: Resultsmentioning

confidence: 63%

Gymnosperms of Idaho: Chemical Compositions and Enantiomeric Distributions of Essential Oils of Abies lasiocarpa, Picea engelmannii, Pinus contorta, Pseudotsuga menziesii, and Thuja plicata

et al. 2023

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Conifers are of great economic value in terms of lumber production, important for construction and other uses such as pulp and paper. They are also important sources of essential oils. Conifer species have been vital to the ethnobotany and traditional herbal medicine of many different Native American groups. The objective of this work was to obtain and analyze the essential oils of several conifer species (Abies lasiocarpa, Picea engelmannii, Pinus contorta, Pseudotsuga menziesii, and Thuja plicata) growing in Idaho. The foliar essential oils were obtained by hydrodistillation and then analyzed by gas chromatographic methods, including GC-MS, GC-FID, and chiral GC-MS. The essential oils were obtained in varying yields from 0.66% up to 4.70%. The essential oil compositions were largely dominated by monoterpene hydrocarbons and oxygenated monoterpenoids. The chiral monoterpenoids were generally rich in the (−)-enantiomers for members of the Pinaceae, but the (+)-enantiomers predominated in the Cupressaceae. The essential oil compositions obtained in this work are qualitatively similar, but quantitatively different, to previously reported compositions and confirm and complement the previous reports. However, this is the first comprehensive analysis of the chiral terpenoid components in these conifer species. Additional research on essential oils of the Pinaceae and Cupressaceae is needed to describe the chemical profiles, chemical compositions, and enantiomeric distributions more reliably in the various species and infraspecific taxa of these two families.

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Section: Resultsmentioning

confidence: 63%

Gymnosperms of Idaho: Chemical Compositions and Enantiomeric Distributions of Essential Oils of Abies lasiocarpa, Picea engelmannii, Pinus contorta, Pseudotsuga menziesii, and Thuja plicata

et al. 2023

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“…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. Except for a sample of Juniperus brevifolia (Seub.)…”

Section: Enantiomeric Distributionmentioning

confidence: 65%

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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“…3,15 showed comparable distributions with (−)-camphene, (−)-( E )-β-caryophyllene, (−)-germacrene D, (+)-δ-cadinene, and (+)-( E )-nerolidol as exclusive enantiomers; (+)-sabinene, (−)-limonene, and (+)-terpinen-4-ol as major enantiomers; while α-pinene and β-pinene were virtually racemic. 16 Interestingly, the enantiomeric distributions are reversed for several components identified in Ericameria nauseosa (Pursch) G.L. Nesom & G.I.…”

Section: Resultsmentioning

confidence: 99%

The Essential Oils of Wyethia Species: Wyethia Amplexicaulis (Nutt.) Nutt. and Wyethia Helianthoides Nutt.

Swor,

Satyal,

Poudel

et al. 2024

Natural Product Communications

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Background/Objective: Wyethia amplexicaulis (shiny mule's ears) and Wyethia helianthoides (white-head mule's ears) are conspicuous forbs growing in open hillsides and prairies at mid to upper elevations in the Intermountain West region of the United States. There have been no previous reports on the essential oil compositions of any Wyethia species, so the objective of this study is to examine the chemical compositions, including enantiomeric distribution of chiral terpenoids, of W. amplexicaulis and W. helianthoides from southern Idaho. Methods: Three individual samples of W. amplexicaulis and W. helianthoides were collected, and the essential oils were obtained by hydrodistillation using a Likens-Nickerson apparatus and analyzed by gas chromatography coupled with mass spectrometry (GC-MS), gas chromatography with flame ionization detection, and enantioselective GC-MS. Results: The essential oils were obtained in yields of 0.090% to 0.136% and 1.489% to 1.771% for W. amplexicaulis and W. helianthoides, respectively. The three W. helianthoides samples showed high similarity with (−)-germacrene D (16.5%-21.5%), ( E)-β-ocimene (10.0%-14.3%), myrcene (8.6%-12.4%), α-pinene (6.3%-7.3%, ≥ 95% (+)-α-pinene), 15-copaenol (4.3%-6.0%), and carotol (3.5%-5.9%) as the major components. The W. amplexicaulis essential oils, on the other hand, showed variation. Two samples were rich in monoterpene hydrocarbons, mostly myrcene (22.4% and 32.2%), while the third sample was dominated by oxygenated sesquiterpenoids, 15-copaenol (11.4%), carotol (10.0%), silphiperolan-7β-ol (8.2%), and caryophyllene oxide (5.8%). This is the first investigation of Wyethia essential oils. Conclusions: There are 11 recognized Wyethia species, so additional research is needed to understand the volatile phytochemicals present in this genus.

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Foliar Essential Oil of White Fir (Abies concolor (Gordon) Lindl. ex Hildebr.): Chemical Composition and Enantiomeric Distribution

Cited by 5 publications

References 10 publications

Gymnosperms of Idaho: Chemical Compositions and Enantiomeric Distributions of Essential Oils of Abies lasiocarpa, Picea engelmannii, Pinus contorta, Pseudotsuga menziesii, and Thuja plicata

Gymnosperms of Idaho: Chemical Compositions and Enantiomeric Distributions of Essential Oils of Abies lasiocarpa, Picea engelmannii, Pinus contorta, Pseudotsuga menziesii, and Thuja plicata

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

The Essential Oils of Wyethia Species: Wyethia Amplexicaulis (Nutt.) Nutt. and Wyethia Helianthoides Nutt.

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