摘要:

AbstractThis article reviews papers published during the period 1982‐88 on the headspace of medicinal and aromatic plants and flowers. Articles reported inChemical Abstracts, the bibliography section of theJournal of ChromatographyandAnalytical Abstractsare discussed. Considering the large number of publications on this topic which have appeared in the literature over this period, we apologize in advance for any articles which may have been overlooked. Flower headspace analysis is treated as an especially dedicated subject, considering the peculiarity and specificity of this topi

ISSN:0882-5734    

DOI:10.1002/ffj.2730050302

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractThe principal spectroscopic properties of the four dihydrocarveol diastereoisomers are reinvestigated. The interpretation of their1H‐NMR spectra allows unambiguous differentiation of the diastereoisomers and the determination of their conformations. ‘Negative ion chemical ionization‐Collision‐induced dissociation’ experiments have been performed on the quasimolecular ions [M ‐ H]−using a FT‐ICR spectrometer. The daughter ion spectra of the alkoxide negative ions [M ‐ H]−of the four isomers show substantial differences which can be used for a diastereoisomeric differentiation and the confirmation of the conformations. The gas phase FT‐IR spectra are recorded. The MS and IR results can be used for essential oil analysis using GC–MS an

ISSN:0882-5734    

DOI:10.1002/ffj.2730050303

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractThe essential oil obtained fromAchillea asiaticaSerg. was analysed by means of capillary gas chromatography and various physico‐chemical methods; 40 components have been identified. The composition ofAchillea millefoliumL. essential oil is very simila

ISSN:0882-5734    

DOI:10.1002/ffj.2730050304

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractThe composition of the volatile oil of Kanzou fromGlycyrrhiza glabraL. var.glanduliferaRegel et Herder growing in northeast China has been investigated by capillary GC, GC–MS and1H‐NMR. The oil contained 81 volatile components of which 35.0% were terpenoid. The main constituents were octanoic acid (11.4%), paeonol (8.9%), octadecane (8.6%), benzaldehyde (7.5%), α‐terpineol (7.5%) and 4‐terpineo

ISSN:0882-5734    

DOI:10.1002/ffj.2730050305

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractCapillary GC analysis of the essential oil ofHyptis suaveolensPoit. grown on Aruba showed high contents of 1,8‐cineole (27‐38%) and sabinene (12‐18%). The oil showed a strong antimicrobial activity againstStaphyloccocus a

ISSN:0882-5734    

DOI:10.1002/ffj.2730050306

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractThe essential oil from the herb ofLaggera alata(D. Don) Sch. Bip. ex Oliv. was analysed by means of GLC, LSC, GC–MS and1H‐NMR spectrometry. Most of its components were identified, amongst which were phenolic ethers (about 45%), monoterpenes (22%) and sesquiterpenes (12%). The main components of the oil were 2,5‐dimethoxy‐p‐cymene ( = thymoquinol dimethyl ether; 44%), and sabinene (16%). Another component (3%) was found to be 2‐methyl‐5‐(1‐methylethyl)‐6‐hydroxycyclohex‐2‐en‐1‐one ( = 6‐hydroxycarvotanacetone); it has until now not been reported to occur in nature. Another rare compound detected was 4‐hydroxycarvotanacetone‐7‐O‐angelate (2%). An olfactographic analysis of the oil was also carried out. Chromatographic analyses of the essential oil ofL.

ISSN:0882-5734    

DOI:10.1002/ffj.2730050307

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractCapillary GC analysis of the essential oils ofOcimum basilicumvar.canumSims andO. gratissimumL. grown on Aruba showed thatO. basilicumvar.canumbelonged to the methyl cinnamate type. Half of the material ofO. gratissimumbelonged to the methyl cinnamate chemotype and the other half contained sesquiterpene hydrocarbons and varying amounts of eugenol as the main volatile components, indicating the existence also of a sesquiterpene hydrocarbon‐eugenol chemotype ofO. gratissimu

ISSN:0882-5734    

DOI:10.1002/ffj.2730050308

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractA GC–MS analysis of the sesquiterpenoid volatile leaf oils ofPolyscias fruticosa(L.) Harms. from Thailand and Fiji has shown large quantitative as well as some qualitative differences between them. About 24 constituents have been tentatively identified, β‐elemene, α‐bergamotene, germacrene‐D and (E)‐gM‐bisabolene being present in majo

ISSN:0882-5734    

DOI:10.1002/ffj.2730050309

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractExtracts of the flowerheads ofTanacetum parthenium(L.) Schultz Bip. were analysed by gas chromatography‐mass spectroscopy (GC–MS). Those components that could not be matched with MS data banks were isolated by column chromatography/HPLC and then characterized by1H‐NMR. Extracts of the leaves and roots were subjected to a similar but less detailed examination for purposes of comparison which revealed that the flowerheads contained more than four times the quantity of the pharmacologically active sesquiterpene parthenolide than the leaves. Thirty‐nine other compounds (mostly terpenoids) were charac

ISSN:0882-5734    

DOI:10.1002/ffj.2730050310

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY

摘要:

AbstractSteam distilled volatile oil from marjoram (Origanum majoranaL.) was evaluated for its antibacterial and antifungal activities. A range of 25 bacterial and five fungal species was used in this study, and included animal and plant pathogens, food poisoning bacteria and mycotoxigenic fungi. The oil exerted considerable inhibitory powers against several of the bacteria, with the food‐poisoning bacteriumStaphylococcus aureusbeing least affected. The most susceptible organisms wereBeneckea natriegens, Erwinia carotovoraandMoraxellasp. Of the fungi tested,Aspergillus nigerproved the most susceptible to marjoram oi

ISSN:0882-5734    

DOI:10.1002/ffj.2730050311

出版商:John Wiley&Sons, Ltd.    

年代:1990

数据来源: WILEY