摘要:

For the first time, pentane extracts of the fruits ofFoeniculum vulgare, subspeciespiperitum, have been analyzed by GC. Two new compounds, piperitenone and piperitenone oxide, were identified by their mass spectra.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698394

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Essential oils from fresh leaves ofPiper gaudichaudianumandP. mikanianum, collected in South Brazil, which were obtained by hydrodistillation, were analyzed by GC and GC/MS. Forty-one compounds representing 94.4–95.1% of the oils were identified.P. gaudichaudianumshowed small amounts of monoterpenes: among them, β-pinene and linalool were the most abundant. Considerable amounts of sesquiterpenes were present, particularly α-humulene (37.5%) and β-caryophyllene (17.4%).P. mikanianumshowed a higher diversity of constituents, of which limonene (14.8%), bicyclogermacrene (14.3%) and β-caryophyllene (10.5%) were the major components.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698395

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Oils ofVitex agnus-castusL., which were obtained by hydrodistillation of the leaves, flowers and fruits, were analyzed by capillary GC. Plants were harvested along the Adriatic coast and from some off-shore islands. The oils were qualitatively similar although there were quantitative differences between them. The leaf oil was rich in 1.8-cineole + limonene (22.42–30.92%), sabinene (15.00–19.16%) and α-pinene (4.32–6.48%), the flower oil contained 1,8-cineole + limonene (12.18–18.43%), sabinene (9.34–9.99%) and α-pinene (2.01–12.00%), while the fruit oil contained 1,8-cineole + limonene (20.73–23.36%), sabinene (16.09–22.28%) and α-pinene (6.60–19.73%). The characteristic odor of the oil was not identified.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698396

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Essential oils from three HimalayanArtemisiaspecies,A. maritimaL.,A. gmeliniiWeb. ex Stechm. andA. roxburghianaWall, ex Bies, var.hypolenca, were analyzed by GC/MS. Forty-five constituents were identified in the three oils. α-Thujone (63.2%) and β-thujone (65.3%) were detected inA. maritimaandA. roxburghianavar.hypolenca, as major components respectively, while artemisia ketone (28.2%) and 1,8-cineole (13.0%) formed major constituents ofA. gmelinii.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698397

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Water-distilled essential oils from underground parts ofOrthurus heterocarpus(Rosaceae) were analyzed by capillary GC and GC/MS. Twenty-nine components representing > 99% of the oils were characterized, with eugenol (93.01–95.49%) being the major component.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698398

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The leaf oils from the three species ofZygogynumrepresented in Australia have been examined. All species produced oils, which were predominantly sesquiterpenic in character, in yields of 0.08–0.36% w/w on fresh leaves.Zygogynum howeanumproduced an oil in which the main components were β-caryophyllene (48.0%), α-humulene (16.5%) and (Z)-β-farnesene (3.2%).Z. semecarpoidesvar.semecarpoidesyielded an oil which was rich in spathulenol (24.4%).Z. queenslandianumsubsp.queenslandianumgave an oil which contained significant amounts of bicyclogermacrene (10.4%), globulol (7.7%), viridiflorol (4.5%) and spathulenol (11.5%), while monoterpenes accounted for less than 20% of the oil.Z. queenslandianumsubsp.australeproduced an oil containing mostly sesquiterpenes. Elemol (5.1%) in this subspecies replaced globulol and viridiflorol which were present in subsp.queenslandianum.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698399

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The citrus relativeSeverinia buxifoliais tolerant to boron and salt, and is resistant to nematode infection, thus making it a potential rootstock for cultivated citrus. Its essential leaf oils were analyzed by GC and GC/MS, and 59 of the 73 separated components were identified by their MS spectra and retention indices. The MS data are given for the remaining 14 unknowns. The major constituents were the sesquiterpenes α-santalene (24%), trans-β-santalol (21%), germacrene-B (10%) and β-caryophyllene (7%) and the monoterpene limonene (19%).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698400

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The volatile oils isolated by steam distillation from the leaves and roots ofEryngium foetidumwere analyzed by capillary GC, GC/MS and1H-NMR. Alkanals and alkenals constituted the main chemical category in the leaf oil which contained (E)-2-dodecenal as the most abundant component (59.72%). In contrast, the root oil contained high amounts of aromatic and terpene aldehydes, among which 2,3,6-trimethylbenzaldehyde (37.55%) and 2-formyl-1,1,5-trimethylcyclohexa-2,4-dien-6-ol (19.82%) predominated. Most of the constituents identified in the present study have not been previously reported in the essential oil ofE. foetidum.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698401

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The essential oils of wild growingSalvia tomentosaMill, andS. scabiosifolia(Lam.), and cultivatedS. officinalisL. (sect.Salvia, Lamiacea) were studied by GC and GC/MS. The number of compounds identified in theSalviaoils were 30, 31 and 22 respectively, the major ones being β-pinene (29.1% inS. tomentosa), camphor (48.7% inS. scabiosifolia) and α- and β-thujone (29.4% and 17.4% inS. officinalis).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698402

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

A morphological, macroscopic and microscopic study of the leaves of 42Forsythia(Oleaceae) taxa was performed in parallel with the extraction of essential oil from leaves of the same taxa. Statistical analysis of yield with stepwise multiple linear regression was used to model the variable in a mathematical equation compiled from a different data. The essential oil yield can thus be calculated by assessment of the secretory hair index without oil extraction.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698403

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor