摘要:

The chemical composition of the volatile concentrates of different cultivars ofLimonium latifoliaKuntze,L.xaltaicaRoh andL. pereziiHubb (Plumbaginaceae family) were studied by GC and GC/MS. The high content of carbonyl compounds such as nonanal, that in Violet cultivar represented 9.8%, phenylacetaldehyde (2.7%) and decanal (1.5%) must be pointed out. Some of the carbonyl compounds found in the aromatic profile arose from the lipoxygenase activity on the disrupted tissues. The presence of hydrocarbons such as heneicosane (C21), docosane (C22), tricosane (C23), tetracosane (C24), heptacosane (C27), octacosane (C28) was also highlighted

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700840

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

Water-distilled oils from the herbal parts ofOriganum boissieri, endemic in Turkey, andOriganum bargyli wereanalyzed by GC/MS. Sixty-two and fifty-seven components were characterized representing 96% and 99% of the total components detected in the oils ofO. boissieriandO. bargyli, respectively, with p-cymene (42.8% and 20.67%) and carvacrol (17.57% and 14.67%) as major constituents, respectively

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700841

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The leaf oil ofCryptocarya cunninghamiiMeissner, obtained in 0.7–1.5% yield, based on fresh leaves, contained either bicyclogermacrene (52.4%) or 6-nonyl-5,6-dihydro-2H-pyran-2-one (78–88%) as its major component. Other lactones present in the oil were 6-heptyl-5,6-dihydro-2H-pyran-2-one (massoia lactone) (0.1–1.3%) and 6-pentyl-5,6-dihydro-2H-pyran-2-one (0.1–0.2%). 2-Phenylethyl benzoate (4–6%) was also present

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700842

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The leaf and inflorescence oils ofOcimum micranthumWilld. were investigated by GC (retention time data), GC/MS and13C-NMR spectroscopy. The main constituents in the leaves were eugenol (44.8%) and β-caryophyllene (14.7%), whereas in the inflorescence elemicin (32.9%) and eugenol (14.0%) were the major compounds

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700843

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The oil isolated by hydrodistillation from the aerial parts ofEupatorium capillifolum(Lam.). Small grown in Cuba was analyzed by capillary GC and GC/MS. Among the 33 compounds identified, p-cymene (23.68%), selin-11-en-4α-ol (12.28%), methyl thymol (8.85%) and β-bisabolene (8.24%) were found to be the major constituents

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700844

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The oils obtained by steam distillation of the aerial parts and seed ofPrangos ferulacea(L.) growing wild in Iran were investigated by a combination of GC and GC/MS. More than 30 compounds in the aerial parts oil, and about 20 compounds in the seed oil have been identified. The main constituents of the oil of the aerial parts were β-pinene (22.9%) and δ-3-carene (16.0%), whereas the seed oil comprised mainly β-pinene (33.0%) and α-pinene (10.1%)

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700845

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The oil ofAlpinia muticaRoxb. was produced by hydrodistillation from fresh rhizomes, collected from cultivated plants in Universiti Pertanian Malaysia. The oil was analyzed by GC/MS and 24 components were identified which constituted 87.5% of the oil. The major components of the oil were camphor (35.6%), 1,8-cineole (9.4%) and borneol (8.3%)

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700846

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The water-distilled oil ofBothriochloa insculpta(Hochst. ex A. Rich) A. Camus was analyzed by GC and GC/MS. Out of the 14 compounds detected, 12 were identified of which limonene (31.8%), camphene (10.9%) and borneol (5.5%) were the major components

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700847

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The hydrodistilled oil from the fresh and dried aerial parts ofTessaria absinthioideswas analyzed by a combination of GC and GC/MS. Thirty-three compounds representing 85% of the oil were identified. The main components of the oil were caryophyllene oxide (12.2%), (E)-β-damascenone (8.6%) and γ-eudesmol (8.5%). The oil consisted of about 32% oxygenated monoterpenes, 36% oxygenated sesquiterpenes and 17% sesquiterpene hydrocarbons. The ratio of oxygenated monoterpenes to oxygenated sesquiterpenes changed from 4.8 to 0.9 in oil of air-dried versus oil of fresh material

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700848

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

The volatile constituents of taro corms were isolated by steam distillation with subsequent extraction of the distillate with dichloromethane. The concentrated extract was analyzed by capillary GC and GC/MS. Sixty compounds were identified, among which aliphatic acids (50.3%), heterocyclic compounds (16.6%), phenols (9.3%) and alcohols (7.8%) were quantitatively significant. The major components were palmitic acid and linoleic acid. 1-Pyrroline and 2-acetyl-1-pyrroline were identified for the first time in taro volatiles

ISSN:1041-2905    

DOI:10.1080/10412905.1998.9700849

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor