摘要:

Three chemotypes ofThymus longicaulisC. Presl subsp.chaoubardii(Reichenb. fil.) Jalas were collected from the same population growing in one m2area. Their oils were examined by GC and GC/MS. Limonene (18.7%) and thymol (19–4%); geraniol (56.8%) and geranyl acetate (7.6%); linalool (63.1%) and α-terpinyl acetate (20.4%) were the predominant components in each of the three different chemotypes, respectively. The oils also exhibited moderate to strong antimicrobial activity against the six Gram (±) tested bacteria

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700850

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

Oils obtained by hydrodistillation, separately from flowers and leaves ofHeterotheca latifoliaBuck. (Compositae), which is a weed in west central Argentina, were analyzed by GC and GC/MS. Twenty-eight compounds were identified in the flower oil representing 88.9%; and 90.7% of the leaf oil was represented by 15 compounds. Although the composition of both oils was similar, the quantity of individual components differed between them. The major components of both oils were borneol (19.0-39.9%) and camphor (12.0–24.3%). The monoterpene hydrocarbon content of the flower oil (47–3%) was much higher than in leaf oil (7.4%), while the oxygenated compounds were much higher in leaf oil (71.5%)

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700851

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The leaf oil ofCommiphora africanahas been analyzed by GC, GC/MS coupling and13C-NMR spectroscopy. The two major compounds identified in the oil were α-oxobisabolene (60%) and γ-bisabolene (10%)

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700852

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

Essential oils of aerial parts of two specimens ofMelampodium camphoratumwere analyzed by GC/MS. The plants were collected from two different localities in the Amazon Region and their oils were found to be remarkably different. One oil obtained from the sample collected at Manaus was characterized by a high content of terpinolene (30.3%), limonene (13.8%) and δ-3-carene (13.2%). The main constituents found in the other oil distilled from a sample collected at Vigia were camphor (15.0%), α-phellandrene (20.5%) and β-caryophyllene (8.9%)

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700853

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

Water-distilled volatiles of rosemary (Rosmarinus officinalisL.) grown in Cuba, were analyzed by GC and GC/MS. Among the 29 compounds identified, camphor (34.81%), 1,8-cineole (11.00%) and borneol (11.63%) were the major constituents

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700854

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The volatile constituents obtained from the aerial parts ofTeucrium poliumwere analyzed by GC and GC/MS. The oil was found to contain 37 components, of which 30 were identified. The major constituents were β-pinene (18.0%), β-caryophyllene (17.8%), α-pinene (12.0%), caryophyllene oxide (10.0%), myrcene (6.8%) and germacrene-D (5.3%)

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700855

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

Water-distilled oil from the fresh flowers ofMorina persicawas analyzed by GC/MS. Thirty two components were characterized representing 96% of the total components detected with (2E,6E) farnesol (58.79%) and germacrene D (10.99%) as major constituents

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700856

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700857

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700829

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor