摘要:

The essential oil of stems and leaves ofHedera helix‘Hibernica,’ analyzed by GC/MS, was found to contain germacrene D (15.85±2.82%), β-caryophyllene (15.50±1.57%), sabinene (13.40±1.40%), β-pinene (11.25±2.50%), limonene (10.99±0.47%), and α-pinene (10.18±2.90%)

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698352

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The composition of essential oil ofAristolochia ovalifoliaDuchr. was analyzed by capillary GC and GC/MS. Thirty-two compounds were identified corresponding to 80.43% of the oil. The major components were ledol (15%), γ-terpinene (7.6%), camphor (6.7%), borneol (6.35%), geraniol (5.2%), δ-cadinol (3.9%) and α-cyclocitral (3.65%).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698353

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The chemical composition of the essential oils of twoCrotonspecies (Croton lundianusandC. glandulosus) analyzed by GC/MS are described and compared. β-Caryophyllene and γ-elemene were identified as the major constituents in both oils along with α-humulene, δ-cadinene, allo-aromadendrene and torreyol, also found as common constituents. Certain components such as 1,8-cineole, linalool, α-ylangene, β-bourbonene and γ-cadinene were found only inC. lundianus, whereas germacrene B, (E)-nerolidol and α-cadinol were found only inC. glandulosus.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698354

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The volatile constituents obtained by vacuum-steam distillation of flowers ofNicotiana longiflorawere characterized by capillary GC and GC/MS. Twenty-nine compounds, comprising 75% of the GC profile of volatiles, were identified. The three major constituents were the labdane alcohol, manool; the acyclic diterpene, neophytadiene; and 2,4-diphenyl-4-methyl-2(Z)pentene. The volatile concentrate exhibited an aroma characteristic of green bell peppers, attributable to the presence of minor amounts of the potent aroma compound, 2-methoxy-3-isobutylpyrazine, previously unreported inNicotianaspecies.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698355

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The floral fragrance headspace of livingRobinia pseudoacaciawas trapped on Tenax tube cartridges using air as the carrier. After solvent elution, the major components identified using GC/MS were δ-3-carene (54.6%), linalool (21%), (Z)-β-farnesene (3.0%) and anthranilate aldehyde (3.9%).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698356

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The volatile constituents of the wood oil ofCinnamomum albiflorumNees were investigated by GC, GC/MS, NMR, IR and high resolution MS. About 35 constituents were present in the oil, from which 27 components could be identified. The major components include eugenol (37.0%), 1,8-cineole (29.2%), geraniol (8.7%), α-terpineol (7.5%) and terpinen-4-ol (7.3%).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698357

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Twenty-seven compounds have been characterized by GC/MS and Kovats indices in the essential oil ofTagetes erectaL. (Compositae). The major compounds are terpinolene (12.4%), (E)-β-ocimene (13.1%), piperitone (20.0%) and limonene (11.0%). The presence of indole among the minor compounds is somewhat surprising, since it was not reported before in this genus.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698358

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The water-distilled essential oils from two varieties ofThymus longicaulissubsp.chaubardii; var.chaubardiiand var.alternatuswere examined by GC and GC/MS. The main component of both varieties was thymol (66.85 and 69.72%, respectively).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698359

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The essential oil produced from the leaves ofCinnamomum impressinerviumMeissn. obtained from wild and cultivated stands in Northeast India were examined by GC. Ten components representing over 96% were identified in both oils. Eugenol was the main component in both oils, the concentration of which was, however, higher in cultivated sources (88.3%) than in the wild ones (83.2%).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698360

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The volatile rhizome oil ofCurcuma trichosanthaGagnep. from Vietnam was analyzed by capillary GC and GC/MS. The main constituents were found to be curdione (47.4%), curcumol (7.0%) and germacrone (6.1%). The structure elucidation of curdione was confirmed by IR,1H- and13C-NMR spectrometry.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9698361

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor