摘要:

AbstractSix new nor‐sesquiterpenoids with the 10‐epi‐eudesmane skeleton were isolated from agarwood oil (Aquilaria agallochaRoxb.): (2R,4aS)‐2‐(4a‐methyl‐1,2,3,4,4a,5,6,7‐octahydro‐2‐naphthyl)‐propan‐2‐ol(5a), (S)‐4a‐methyl‐2‐(1‐methylethyl)‐3,4,4a,5,6,7‐hexahydronaphthalene(6), (S)‐4a‐methyl‐2‐(1‐methylethylidene)‐1,2,3,4,4a,5,6,7‐octa‐hydronaphthalene(7), (2R,4aS)‐4a‐methyl‐2‐(1‐methylethenyl)‐1,2,3,4,4a,5,6,7‐octahydronaphthalene(8), (1R,6S, 9R)‐6,10,10‐trimethyl‐11‐oxatricyclo[7.2.1.01.6]dodecane(9)an

ISSN:0882-5734    

DOI:10.1002/ffj.2730070602

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractThe essential oil and the absolute ofArtemisia salsoloidesWilld. was investigated. More than 100 compounds, mainly monoterpene derivatives, could be identified by GC‐MS and/or1H‐NMR spectra. (Z)‐Jasmone and some cinnamates are most interesting from the olfactory point of view. The absolute contains products of the oxidative degradation of davanone and higher oxidized monoterpenes, especially a new keto alcohol ‘photo‐oxonerol’ (5‐hydroxymethyl‐1,6,6‐trimethylbicyclo[2

ISSN:0882-5734    

DOI:10.1002/ffj.2730070603

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractSteam‐distilled volatile constituents from chempedak (Artocarpus polyphemaPers.) fruit and jackfruit (Artocarpus heterophyllusLam.) grown in Malaysia were analysed by capillary GC and GC‐MS. Chempedak fruit volatiles contained 54 components of which 37.4%, were alcohols and 32.2% carboxylic acids. The main constituents were 3‐methylbutanoic acid (28.2%) and 3‐methylbutan‐1‐ol (24.3%). Other important flavour compounds include 2‐acetyl‐1‐pyrroline and the tentatively identified 2,5‐dimethyl‐4‐hydroxy‐3(2H)‐furanone. Jackfruit volatiles contained 45 components of which 32 have not been reported previously. Esters represented a high proportion (31.9%) of the jackfruit volatiles and are important contributors t

ISSN:0882-5734    

DOI:10.1002/ffj.2730070604

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractAs a result of a positive response to a dithiocarbamate test, the sulphur content of caper volatiles has been investigated by GC‐MS. In addition to sulphides, isothiocyanates and other flavour molecules, elemental sulphur (S8) was identified for the first time in a non‐processed food. This paper presents the primary description of the aromatic bud which is widely consumed in Mediterranean countries. The organoleptic profiles of uncommon thiocyanates, nitriles and of the elemental sulphur are presen

ISSN:0882-5734    

DOI:10.1002/ffj.2730070605

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractIndianJasminium grandiflorumL. flowers furnish a concrete and an absolute comparable with that from flowers of the same species from different locations, the average seasonal yield being 0.31% of the weight of flowers as concrete and 53.6% of the concrete as absolute. Gas chromatographic screening of the jasmine fragrances reveal that the gross compositional pattern is similar to that of oils from other countries. For comparison, quantitative data of major components gleaned from literature have been compiled. Organoleptically, isolates derived from the Indian flowers have gained the confidence of perfumery houses. The Indian jasmine industry has thus matured to play a significant international role.

ISSN:0882-5734    

DOI:10.1002/ffj.2730070606

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractThe headspace of the dried herb ofPassiflora incarnataL. (Passifloraceae) and that of the officinal lime tree drug (comprising of the dried flowers ofTilia cordataMill. and/or T.platyphyllosScop.; Tiliaceae) were investigated by GC, GC‐MS and GC‐FTIR. As main compounds of the headspace ofP. incarnatalimonene, cumene, α‐pinene, prezizaene, zizaene and zizanene, and of the headspace of lime tree flowersp‐cymene, fenchone, α‐thujone, β‐thujone, camphor, anethole and menthone were identified by GC retention time correlations and by their mass and/or IR spectra. Additionally, information on the odour impression of the headspace samples, and data obtained by a sniffing technique are given. No single compound has been found to be responsible on its own for the typical odour

ISSN:0882-5734    

DOI:10.1002/ffj.2730070607

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractGermacrene‐B was identified as a major component of the oil obtained from cultivar II of patchouli (Pogostemon cablinBenth.). Compared with the standard patchouli oil, from cultivar I, the oil has a distinct aroma owing to the occurrence of germacrene‐B. The chemogenetic relationship between these cultivars is discus

ISSN:0882-5734    

DOI:10.1002/ffj.2730070608

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

AbstractThe volatile components of caja fruit (Spondias luteaL.) were characterized using two different methods of isolation: (a) steam distillation followed by extraction with dichloromethane; (b) direct extraction of caja pulp with diethyl ether. Fractionation of the flavour concentrates on silica gel was accomplished. The extracts were analysed by dual capillary gas chromatography and combined capillary GC‐MS. About 100 flavour compounds were identified for the first time asSpondias luteavolatiles. Among them butanoic acid, ethyl 3‐hydroxyhexanoate, butanol, ethyl 3‐hydroxybutanoate, butyl butanoate and butyl 3‐hydroxybutanoate were the most abundant constituents. The chiral distribution of the main 3‐hydroxy aliphatic esters was evaluated by derivatization with (S)‐tetrahydro‐5‐oxo‐2‐furancarbonyl chloride (TOF). GC separation on an achiral DB‐1 column afforded good resolution of the diastereoisomers and indicated an enantiomeric exce

ISSN:0882-5734    

DOI:10.1002/ffj.2730070609

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

摘要:

Abstractβ‐Terpineol, a minor constituent of commercial terpineol as well as of some essential oils, is a mixture ofcisandtransisomers, separation of which by physical methods is laborious while chemical methods involve a number of steps. A direct, simple synthesis oftrans‐β‐terpineol from ( + )‐limoneneviaitstrans‐ 1,2‐oxide

ISSN:0882-5734    

DOI:10.1002/ffj.2730070610

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY

ISSN:0882-5734    

DOI:10.1002/ffj.2730070611

出版商:John Wiley&Sons, Ltd.    

年代:1992

数据来源: WILEY