摘要:

The leaf oil ofLippia multiflorawas examined by GC and GC/MS and found to contain (Z)-tagetone (11.3%) and (E)-tagetone (30.2%) as major constituents. It was found to be highly active against isolated microorangisms of the buccal flora. A mouthwash prepared at a dilution of 1/500 of the essential oil showed the same activity as the oil. Tests for toxicity proved negative. The results obtained thus far reveal a particularly promising potential for the large scale use ofL. multiflora.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699354

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Oils produced fromOriganum hypericifolium, an endemic species, were analyzed by GC and GC/MS. Carvacrol (64.33%) was found to be the major component in the oil from plants collected before flowering, whereas p-cymene (36.10–47.75%) was the major constituent in the oils from plants collected while in full flower

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699355

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The essential oil of the rhizomes ofZingiber ottensiiValeton of Malaysia has been analyzed by a combination of capillary GC and GC/M S. Twenty-six components have been identified of which the major component was found to be zerumbone (25.6%)

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699356

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The essential oil of the flowers ofAlpinia chinensisRose, of Vietnamese origin has been analyzed by a combination of high resolution GC and GC/MS. About 30 components have been identified, of which (E,E)-α-farnesene (26.5%), α-humulene (22.3%), β-bisabolene (17.1%) and β-caryophyllene (13.1%) were found to be the major compounds

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699357

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Both the steam volatile leaf and flower oils ofActinodium cunninghamii, obtained in 0.3–0.4% w/w on a fresh weight basis, were found to comprise 90% or more of α-pinene. The remainder of the oils consisted of a mixture of mono- and sesquiterpenes

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699358

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The essential oil ofSatureja bolivianaBriq., was studied by GC and GC/MS. The main constituents found were: menthone (54.11%), isomenthone (15.12%), carvacrol (6.76%) and isopulegone (5.45%)

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699359

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The chemical composition of the leaf oils ofPiper arboreum var. latifoliumandP. hispidumwere analyzed by a combination of GC/MS,13C-NMR and Kovats indices. The main constituents found in the oil ofP. hispidumwere γ-cadinene (25.13%), camphene (15.61%), γ-guaiene (11.47%) and γ-elemene (10.88%). The oil ofP. arboreumvar.latifoliumshowed a high yield of germacrene D (72.87%)

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699360

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Water-distilled essential oils from aerial parts, leaves, flowers and stems with branches ofNepeta caesarea, an endemic species, were analyzed by GC and GC/MS. Twenty-five compounds constituting 95.1–98.1% of the total components detected were identified. 4aα,7α,7aα-Nepetalactone (91.20–95.34%) was found to be the major component in the oils

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699361

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The comparative analyses of the essential oils obtained by hydrodistillation of bark ofDaniellia oliveri(Rolfe) Hutch & Dalz. from Benin and Burkina Faso were performed by GC and GC/MS. Twenty-three components representing 92.2–97.7% of the oils were identified. The chemical compositions of both oils were qualitatively comparable. The oils were found to comprise exclusively of sesquiterpenoids, a majority of which were hydrocarbons. The most abundant compounds were α-copaene (6.0–12.0%), germacrene D (4.5–29.5%) and δ-cadinene (25.5–29.8%).

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699362

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The water-distilled leaf oil ofDracaena reflexaLam. var.angustifoliaBaker, a rare and endangered species of Rodrigues island was examined by GC and GC/MS. Seventeen constituents representing 99.93% of the oil were identified with citronellyl acetate (44.45%) as the major component.

ISSN:1041-2905    

DOI:10.1080/10412905.1994.9699363

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor