摘要:

The flowers ofPhlomis fruticosaL., Lamiaceae were collected in Kythnos island, Aegean sea, Greece. The essential oil was obtained by hydrodistillation of these flowers and was analyzed by GC/MS. Thirty seven components were identified representing 85.6% of the oil. The main components were germacrene D (17.8%), γ-bisabolene (12.6%), α-pinene (8.9%), β-caryophyllene (8.7%).

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699534

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

The chemical composition of essential oils isolated from flowering whole herb, flowers, leaves and stem of cornmint cv. ‘Shivalik’ grown on black soil in semi-arid tropical climate, were compared. Cornmint grew to a height of 75–120 cm and produced 4.5–54 kg biomass/m2. Flowers, leaves and stems contributed 31–3%, 37.4% and 31.3% to biomass yield and produced essential oil yields of 1.50%, 1.56% and 0.06%, respectively. The flowering whole herb gave 0.59% oil yield. The whole herb and leaves produced oils of similar composition, except for slightly higher content of menthol (71.1%) in leaf oil. The flower oil contained highest concentration of menthone (30.2%), but lowest percentage of menthol (53.2%). Stem oil was richer in menthol (82.3%) and menthyl acetate (3.4%), but poorer, compared to other oils, in myrcene + 3-octanol, limonene + 1,8-cineole, menthone, isomenthone and neomenthol.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699535

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

The oils obtained by hydrodistillation and the headspace volatiles from the aerial parts ofBombycilaena erectaandOtanthus maritimuswere analyzed by means of GC and GC/MS. The major components of the oils ofOtanthus maritimuswerecis-chrysanthenyl acetate (30.4%); camphor (12.9%) and artemisia alcohol (12.6%), while those ofBombycilaena erectawere camphor (18.8%); yomogi alcohol (14.9%) and artemisyl acetate (9.1%). Additionally, the repellency of the investigated species against the antMonomorius pharaoniswas studied.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699536

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

An analysis is presented of the essential oil of various populations of four similar taxa of theArtemisiaL. genus, which colonize salty and subsalty lands [A. caerulescensL. subsp.caerulescens, A. caerulescensL. subsp.cretacea(Fiori) Brilli-Catt. et Gubell.,A. densifloraViv. andA. gallicaWilld.]. Their variation was assessed, regarding the systematic similarities as well, which were interpreted in various ways. GC and GC/MS analyses of the oils revealed the constant presence of α and β-thujone and camphor; these results substantially confirm the most recent systematic interpretation, highlighting a notable similarity between the twoA. caerulescenssubspecies and betweenA. densifloraandA. gallica.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699537

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

β-Pinene (35.0%, 53.8%) was the major component of both the aerial parts and the root oils ofPteryxia terebinthinavar.californica, respectively. β-Phellandrene (12.2%) was the other most abundant component of the oil from aeial parts while δ-3-carene (14.2%) was the second abundant component of the root oil.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699538

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

Volatile components of two cultivars of avocado fruits (California and Haas) were isolated by simultaneous steam distillation/solvent extraction. Both cultivars had 227 and 289 μg/kg of total volatile compounds, respectively. Major components were (E)-nerolidol, with lesser amounts of β-caryophyllene, β-pinene,trans-α-bergamotene and β-bisabolene.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699539

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

The volatile components of the peel essential oil ofMicrocitrus australasicavar.sanguinea(F.M. Bail) Swing were characterized by combined GC and GC/MS analyses. Fifty-eight over a total of 65 components were identified, bicyclogermacrene (25.9%), α-pinene (10.2%) and spathulenol (9.8%) were the main compounds. As a whole and in detail, the chemical composition ofM. australasicavar.sanguineapeel oil is very different from that of the peel oils of Citrus species, the most known related genus.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699540

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

The freshly distilled essential oil from the leaves ofEucalyptus camaldulensiscollected in Tampa, FL, were analyzed by GC/MS. The major constituents identified in the oil included p-cymene (35.0%), ciyptone (13.7%), terpinen-4-ol (5.7%), spathulenol (4.3%), and cuminaldehyde (3.7%). Relatively a very low amount of 1,8-cineole (2.7%) was found. The oil was not typical in chemical composition of the high cineole types of this species most often referenced in the literature and was found to be one of the highest cryptone containing essential oils yet reported.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699541

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

Crushed fruits ofHeracleum paphlagonicum, a rare endemic of Turkey, were hydrodistilled and the oil was analyzed by GC/MS. Ninety-seven compounds were identified representing 95.4% of the oil with octyl acetate (31.5%), hexyl butyrate (17.0%) and octyl hexanoate (10.2%) as the main constituents.

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699542

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor

摘要:

An inventory of naturally occurring sabinene hydrate (4-thujanol)-rich thyme populations singled out 16 individuals of potential commercial importance. After multiplication by microcuttings and grown in a nursery, we now possess a collection that yields an oil particularly rich in sabinene hydrate (up to 62%). The other constituents commonly found in thyme, 1,8-cineole, linalool, terpinen-4-ol, α-terpineol, geraniol, thymol and carvacrol are present only in small amounts, (trace-5.0%).

ISSN:1041-2905    

DOI:10.1080/10412905.2000.9699543

出版商:Taylor & Francis Group    

年代:2000

数据来源: Taylor