bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of cultivation conditions on the composition of basil oil
Authors: Nykänen Irma 
Published: November 2006

AbstractThe composition of the essential oil of basil grown under various conditions in Finland was analysed by capillary gas chromatography and mass spectrometry. The growth district seemed to affect the composition of the basil oil, the four districts studied yielding two chemotypes. The essential oil of one chemotype was high in linalol and estragole, whereas the oil of the other was high in linalol and eugenol. Cultivation under cover increased the yield of essential oil (mg/kg of herb) by about 80%. Depending on the chemotype, this increase was largely reflected in an increased production of estragole or eugenol, whereas production of linalol was less affected. Increasing nitrogen fertilizer supply over the range 0 to 160kg N/ha first decreased and then increased the essential oil production (mg/kg of herb).
Essential oil of Sideritis granatensis (Pau) Rivas‐Goday (Lamiaceae)
Authors: Adzet T. , Cañigueral S. , Ibàñez C. 
Published: November 2006

AbstractThe air‐dried aerial parts of Sideritis granatensis (Pau) Rivas‐Goday yielded 0.27% (vol/wt) of essential oil by hydrodistillation. The oil was investigated for the first time and more than 93% was identified. α‐Pinene (20%), fenchol (18%), fenchone (9%), fenchyl acetate (8%), 1,8‐cineole (5%) and limonene (5%) were the main components.
The leaf essential oil of Salvia candelabrum Boiss
Authors: Cañigueral S. , Iglesias J. , Vila R. , Ibàñez C. 
Published: November 2006

AbstractThe composition of the hydrodistilled essential oil (1.9% vol/wt) of the leaves of Salvia candelabrum Boiss. is reported. More than 98% of the oil was identified. 1,8‐Cineole (32%), camphor (21%), camphene (12%) and α‐pinene (8%) were the main components.
The chemical composition of the peel oils from unripe and ripe fruits of bitter orange, Citrus aurantium L. ssp. amara engl.
Authors: Boelens Mans H. , Jimenez Rafael 
Published: November 2006

AbstractThe chemical composition of bitter orange peel oils from fully developed, living, unripe and ripe fruits was studied. Fifty constituents were quantified, comprising about 99% of the oils. Lower aliphatic constituents are formed during ripening. Ripe bitter orange peels contained higher concentrations of aliphatic aldehydes and oxygen‐containing monoterpenes and sesquiterpenes than the peels of fully developed unripe fruits. Changes were found in the concentrations of linalol and linalyl acetate (together 0.3–3.2%) and in those of limonene (92–95%) in the peel oils from living bitter oranges. The sesquiterpenes nootkatone and α‐selinenone could not be detected in the peel oils from fully developed unripe bitter oranges, whereas such oils from ripe fruits contained up to 0.15% of them. Thus, some oxygen‐containing sesquiterpenes also seem to be formed during ripening.
Gc‐ion trap detection and identification in essential oil analysis
Authors: Galletti Guido C. , Marotti Mauro , Piccaglia Roberta , Pelli Beatrice , Traldi Pietro 
Published: November 2006

AbstractGas chromatography‐ion trap detection was studied using lavandin abrialis oil as a complex natural mixture. The essential oil was pre‐separated by column chromatography and the two fractions collected were analysed by GC‐FID and GC‐ITD. The gas chromatograms obtained by these detection methods were comparable. The mass spectra recorded by GC‐ITD were influenced by the absolute amounts of the compounds, and some examples are given to illustrate this phenomenon.
The synthesis of glucosides from monoterpene alcohols and their chromatographic characteristics
Authors: Mastelič J. , Grzunov K. , Ružzič N. 
Published: November 2006

AbstractThe β‐D‐glucopyranosides of citronellol, geraniol, menthol, and borneol were synthesized and characterized as their tetra‐acetates and trimethylsilyl ethers, and by enzymatic hydrolysis to their aglycones.
The essential oil of Cupressus lusitanicus Mill
Authors: Carmo M. M. , Frazão S. 
Published: November 2006

AbstractThe essential oil isolated by hydrodistillation from leaves, twigs and branchlets of Cupressus lusitanicus Mill., Portuguese cypress, was analysed by capillary GC. The identified components and the percentage composition of the oil are given as well as the physical and chemical characteristics of the oil, which were determined using ISO standard methods. The oil contained about 65% of monoterpene hydrocarbons.
Composition and yield of commercial essential oils from parsley. 1: Herb oil and crop development
Authors: Porter N. G. 
Published: November 2006

AbstractEssential oils were extracted from aerial parts of plain and curled leaf parsley cultivars in commercial crops, from spring in the crops' second year until full seed ripeness. Continual and extensive changes in fresh weight, oil content, yield and composition in whole plants were associated with plant development stages during the growing season, and within different parts of dissected crop plants. Contribution ratios (% oil yield/% fresh weight) were calculated to identify the plant parts which accumulated oil most efficiently. Stem and leaf tissues were less efficient than umbels and more costly to extract. The aromatic characters of the oils from the different parts were determined by the balance of two groups of compounds. The typical parsley leaf character was associated most closely with p‐mentha‐l,3,8‐triene and the stronger seed character with myristicin and apiole. Single sampling of oils is inadequate for comparisons between cultivars or for effective management of commercial crops. The commercial significance of the results is discussed.
The volatile oil of Calamintha nepeta (L.) savi subsp. glandulosa (req.) P. W. Ball, endemic to Greece
Authors: Kokkalou Eugenios , Stefanou Euripedes 
Published: November 2006

AbstractThe analysis by capillary GC and GC–MS of the volatile oil of Calamintha nepeta (L.) Savi subsp. glandulosa (Req.) P.W. Ball, endemic to Greece, showed the presence of at least 46 components, of which 31 were identified, corresponding to 98% of the total. The major components were found to be the two diastereoisomers of piperitone oxide (55%) and β‐bisabolene (8.5%).
Volatile components in the peel oil from fingered citron (citrus medica L. var. sarcodactylis swingle)
Authors: Shiota Haruyasu 
Published: November 2006

AbstractThe volatile components in the peel oil from Japanese fingered citron (Citrus medica L. var. sarcodactylis Swingle) were analysed by GC–MS for the first time. The main components were limonene (47.8%), γ‐terpinene (32.1%), α‐pinene (2.9%), α‐pinene (2.7%), geranial (2.5%), myrcene (1.7%), neral (1.6%), terpinolene (1.4%) and γ‐thujene (1.33%). The peel oil was characterized by the smaller content of limonene and the larger content of β‐terpinene, geranial and neral. β‐Ionone, one of the aroma volatile components, was responsible for the characteristic osmanthus‐like odour of the fruit. A crystalline substance which separated from the peel oil was identified as 5,7‐dimethoxycoumarin (limettin) on the base of the 1H‐NMR spectrum.
The volatile leaf oil of vitex limonifolia wall
Authors: Suksamrarn Apichart , Aphaijitt Suthep , Brophy Joseph J. 
Published: November 2006

AbstractThe volatile leaf oil of Vitex limonifolia Wall. contains caryophyllene (43%), caryophyllene oxide (13%) and α‐pinene (6%) as major components. Another 31 components have also been identified.
The deterpenation of orange and lemon oils using preparative adsorption chromatography
Authors: Tzamtzis N. E. , Liodakis S. E. , Parissakis G. K. 
Published: November 2006

AbstractThe deterpenation of orange and lemon oils has been studied by preparative adsorption chromatography using silica gel in glass columns of 43 cm length and diameters of 2.5, 5.1 and 9.0 cm.The terpene hydrocarbons were eluted with n‐hexane/ethyl acetate 25:1 and the oxygenated compounds were eluted subsequently with ethyl acetate. The eluted fractions were collected and analysed by gas chromatography. The influence of column diameter and product feed rate on the degree of deterpenation has been studied.An empirical equation which relates the degree of deterpenation to the recovery of enriched oil and the product feed rate has been derived. This relationship can be used to predict the performance of any given system based on silica gel adsorption chromatography.
Extraction of the volatile oil in chamomile flowerheads using supercritical carbon dioxide
Authors: Vuorela H. , Holm Y. , Hiltunen R. , Harvala T. , Laitinen A. 
Published: November 2006

AbstractThe aim of the study was to investigate the possibilities of enriching the most volatile chamomile (Chamomilla recutita (L.) Rauschert) compounds in extracts by supercritical carbon dioxide extraction and to analyse them by headspace gas chromatography (HSGC). HSGC was combined with mass spectrometry for identification of the compounds. The present study shows that extraction using supercritical carbon dioxide is a convenient method for isolating volatile oils. Also the most volatile components of essential oils, that are normally lost during isolation, can be enriched in an extract obtained by supercritical carbon dioxide extraction.
The volatile constituents of the flower concrete of chimonanthus praecox link. from china
Authors: Ueyama Yoshitaka , Hashimoto Seiji , Nii Hiromichi , Furukawa Kiyoshi 
Published: November 2006

AbstractThe essential oil of the flower concrete of Chimonanthus praecox Link. (Calycanthaceae) from China has been investigated by a combination of chromatographic and spectroscopic methods. This essential oil possesses a characteristic sweet floral odour. As the result of analysis, a total of 161 compounds were identified. The main constituents were trans‐β‐ocimene, nonanal, linalol, bornyl acetate, 3,7‐dimethylocta‐1,5(E), 7‐trien‐3‐ol, δ‐cadinene, benzyl alcohol and elemol, accounting for 32.53% of the neutral essential oil.
Chemical composition of Eucalyptus essential oils grown in Uruguay
Authors: Dellacassa Eduardo , Menéndez Pilar , Moyna Patrick , Soler Eduardo 
Published: November 2006

AbstractThe chemical composition of essential oils from 22 Eucalyptus species growing in Uruguay are described. It was found that 1, 8‐cineole, citronellal, p‐cymene and benzaldehyde are the main constituents.
Essential oils from Lippia alba (Mill.) N. E. Brown and Aloysia chamaedrifolia Cham. (verbenaceae) from Uruguay
Authors: Dellacassa Eduardo , Soler Eduardo , Menéndez Pilar , Moyna Patrick 
Published: November 2006

AbstractThe essential oil composition of Lippia alba (Mill.) N. E. Brown, and Aloysia chamaedrifolia Cham. (Verbenaceae) growing in Uruguay are described. The main components are camphor, 1,8‐cineole and β‐cubebene for L. alba and globulol, spathulenol and γ‐elemene for A. chamaedrifolia.
The volatile constituents of Shi Mei (Rosa davurica Pall.) flower concrete from China
Authors: Ueyama Yoshitaka , Hashimoto Seiji , Nii Hiromichi , Furukawa Kiyoshi 
Published: November 2006

AbstractThe volatile constituents of Shi Mei (Rosa davurica Pall.) flower concrete have been investigated by a combination of chromatographic and spectroscopic methods. This essential oil possesses a characteristic plum‐like and Osmanthus flower‐like odour. The main constituents of the essential oil from Shi Mei flower concrete were eugenol (23.8%), benzyl alcohol (24.5%), β‐ionone (7.0%), dihydro‐β‐ionol (3.3%), linalol (6.0%) and benzaldehyde (2.5%).
Genetic affinities and essential oil composition of Salvia officinalis L., S. fruticosa Mill., S. tomentosa Mill. and their hybrids
Authors: Putievsky E. , Ravid U. , Diwan‐Rinzler N. , Zohary D. 
Published: November 2006

AbstractIn order to clarify the relationship between Salvia officinalis L., S. fruticosa Mill., and S. tomentosa Mill., interspecific crosses were made and were followed by a study of chromosome behaviour, pollen fertility, seed set, and essential oil composition of parents and F1 plants. The data presented show that although the three tested Salvia species have low crossability they are closely related.
The essential oil of Hyptis suaveolens Poit. Grown on Aruba
Authors: Fun C. E. , Svendsen A. Baerheim 
Published: November 2006

AbstractCapillary GC analysis of the essential oil of Hyptis suaveolens Poit. grown on Aruba showed high contents of 1,8‐cineole (27‐38%) and sabinene (12‐18%). The oil showed a strong antimicrobial activity against Staphyloccocus aureus.
Composition of the essential oils of Ocimum basilicum var. canum Sims and O. gratissimum L. Grown on Aruba
Authors: Fun C. E. , Svendsen A. Baerheim 
Published: November 2006

AbstractCapillary GC analysis of the essential oils of Ocimum basilicum var. canum Sims and O. gratissimum L. grown on Aruba showed that O. basilicum var. canum belonged to the methyl cinnamate type. Half of the material of O. gratissimum belonged 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 of O. gratissimum.
Constituents of the volatile leaf oils of Polyscias fruticosa (L.) Harms.
Authors: Brophy Joseph J. , Lassak Erich V. , Suksamrarn Apichart 
Published: November 2006

AbstractA GC–MS analysis of the sesquiterpenoid volatile leaf oils of Polyscias 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 major proportions.
The antimicrobial properties of marjoram (Origanum majorana L.) Volatile Oil
Authors: Deans S. G. , Svoboda Katerina P. 
Published: November 2006

AbstractSteam distilled volatile oil from marjoram (Origanum majorana L.) 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 bacterium Staphylococcus aureus being least affected. The most susceptible organisms were Beneckea natriegens, Erwinia carotovora and Moraxella sp. Of the fungi tested, Aspergillus niger proved the most susceptible to marjoram oil.
(+)‐ α‐santalol and ( − )‐ β‐santalol(Z) concentration, a new quality determinant of East Indian sandalwood oil
Authors: Verghese J. , Sunny T. P. , Balakrishnan K. V. 
Published: November 2006

AbstractThe level of ( + )‐ α‐santalol (1) and ( − )‐ β‐santalol(Z) (2) measured by capillary gas chromatography (CGC) constitutes a better criterion than the currently accepted index, viz. ‘not less than 90% of alcohol calculated as santalol’ to judge East Indian sandalwood oil. The limits proposed are: 40% to 55% (1) and 17% to 27% (2). This novel approach deserves inclusion in all official specifications of the oil.
Composition of the essential oils of some Thymus and Thymbra species
Authors: Kuštrak D. , Martinis Z. , Kuftinec J. , Blažević N. 
Published: November 2006

AbstractA comparative study of some Thymus and Thymbra species growing wild in Yugoslavia, was carried out in order to determine the possibilities of using regional resources of medicinal plants. The essential oil contents (0.70–1.60% vol./dry wt) were determined by hydrodistillation, and the oil compositions analysed by gas chromatography.The oil of Thymus glabrescens Willd. contained 29% 1, 8‐cineole, 0.2% thymol and 2% carvacrol. Oil samples of Thymus pulegioides L. contained less than 0.7% 1, 8‐cineole, but 6–15% p‐cymene, 1–22% thymol and 10–30% carvacrol, while one of these samples consisted of 50% linalol. In the oil of Thymus longicaulis C. Presl, the main components were p‐cymene (26%), thymol (40%) and carvacrol (8%). The oil of Thymbra capitata (L.) Cav. [ = Coridothymus capitatus (L.) Rchb. f.] was characterized by large amounts of carvacrol (76–83%).
The synthesis of enantiomerically pure (S)(+)‐α‐phellandrene from (R)(−)‐carvone
Authors: Sen A. , Grosch W. 
Published: November 2006

Abstractα‐Phellandrene is widely distributed in spices and herbs. In the essential oils, the (−)‐form appears more commonly in Mentha, Pinus, Lavandula and Zanthoxylum species.1.2 The (+)‐form of α‐phellandrene is most significant in Ridolfa species,2 and has been recently associated in the dill herb3 with a strong and typical dill‐like aromatic note. In order to clarify, and to confirm by synthesis, the odour characteristics related to the stereochemical properties of the (+)‐form, it was necessary to provide the pure enantiomer with the known absolute configuration.
Genuineness characters of calabrian bergamot essential oil
Authors: Dugo Giovanni , Cotroneo Antonella , Verzera Antonella , Donato Maria G. , Duce Rosa Del , Licandro Giavincenzo , Crispo Francesco 
Published: November 2006

AbstractThe composition of 432 samples of bergamot essential oil, absolutely genuine and produced in Calabria using a ‘pelatrice’ (peel machine) during the 1986/87 and 1987/88 seasons, has been studied by HRGC.The results obtained, together with those of 409 samples produced in the 1984/85 season, establish that the quantitative composition of bergamot essential oil (1) shows peculiar and reproducible variations for some compounds during the whole productive season and (2) greatly depends on the provenance of the fruit, the latitude but not the altitude being the determining factor.The ranges of the compounds studied are wider than those observed previously for lemon and mandarin essential oils.The results obtained help in the determination of genuineness and the quality of bergamot essential oils.
The characteristics of the peel oil obtained from Shima‐Mikan (Citrus kinokuni Hort. ex Tanaka)
Authors: Shiota Haruyasu , Itoo Saburo 
Published: November 2006

AbstractThe composition of the peel oil from Shima‐mikan (Citrus kinokuni Hort. ex Tanaka) was investigated at monthly intervals and it was found that the concentration of methyl N‐methylanthranilate (MMA) decreased gradually as the fruit matured. However, MMA was not detectable in the peel oils from Kishiu‐mikan and Sakurajima‐mikan, even though Shima‐mikan has been described as a member of the same botanic group as these two species of citrus. The composition of the peel oil from Shima‐mikan was found to resemble that of the Mediterranean mandarin.
Volatile constituents of ethanol extracts of Hierochloe odorata L. var. Pubescens kryl.
Authors: Ueyama Yoshitaka , Arai Toshiyuki , Hashimoto Seiji 
Published: November 2006

AbstractThe volatile constituents obtained from ethanol extracts of the root and the aerial parts of Hierochloe odorata L. var. pubescens Kryl. growing in the east of China were examined by a combination of GC, GC‐MS and HPLC techniques. A total of 169 volatile compounds were identified. This volatile oil was rich in coumarin, which accounted for 10.3 % of the root oil and 24.9% of the aerial part oil. Quantitative analysis by HPLC showed that ethanol extract of the roots to contain 3.57% (m/m) of coumarin and that of the aerial parts 3.72% (m/m).
Composition of leaf and flower essential oil from Monarda didyma L. cultivated in France
Authors: Carnat A. P. , Lamaison J. L. , Rémery A. 
Published: November 2006

AbstractThe essential oil from flowers and leaves of Monarda didyma L. (cv. Cambridge Scarlet) was investigated by means of GC and GC‐MS. Linalol proved to be the main component, together with other typical compounds of the Lamiaceae family.
On the characterization of some terpenes from Renealmia alpinia rott. (maas) oleoresin
Authors: Lognay G. , Marlier M. , Severin M. , Haubruge E. , Gibon V. , Trevejo E. 
Published: November 2006

AbstractRenealmia alpinia Rott. (Maas) (Zingiberaceae) seeds contain 14% of a dark brown oleoresin which was investigated by a combination of chromatographic and spectrometric techniques. The volatiles (4.4% of the oleoresin) extracted from the oil by hydro‐distillation were mainly monoterpene hydrocarbons (β‐pinene 22.3%, limonene 18.4% and β‐phellandrene 38.0%). The oleoresin was further fractionated by column chromatography. β‐Carotene, nerolidol and manool were detected. The main constituent (45%) was unambiguously identified as 8(17),12 (E)‐labdadien‐15,16‐dial and details of its structure were provided by NMR spectroscopy. Three other unidentified labdane diterpenes were also found in low amounts.
Relation between the antimicrobial activity and the chemical composition of the essential oil of Sidevitis sipylea boiss. (labiatae)
Authors: Gergis V. , Spiliotis V. , Argyriadou N. , Poulos C. 
Published: November 2006

AbstractThe antimicrobial activity of the essential oil of Sideritis sipylea Boiss. (Labiatae) was studied. The essential oil was separated into five fractions by preparative TLC and the antimicrobial activity of each fraction was tested. The results showed that the different fractions varied in their antimicrobial activity. The fractions with the highest activity were analysed by GC‐MS analysis and it was shown that the main constituents responsible for the antimicrobial activity were alcohols.
Essential oils from two medicinal plants of Fiji: Dysoxylum richii (A. Gray) C.D.C. fruit and Synedrella nodiflora (L.) Gaertn. leaves
Authors: Aalbersberg William G. L. , Singh Yogendra 
Published: November 2006

AbstractSteam distillation of Dysoxylum richii (A. Gray) C.D.C. fruits gave a greenish coloured oil in 0.19% yield while Synedrella nodiflora (L.) Gaertn. leaves gave a yellow oil in 0.02 % yield. The composition of the essential oils was determined by the use of capillary gas‐liquid chromatography and mass spectrometry. The oil from Dysoxylum richii fruits was found to be rich in sesquiterpene hydrocarbons (58 %) and oxygenated sesquiterpenes (35 %). The major components of the oil are δ‐cadinene (20.4%), germacrene‐D (16.6%) and cadinol isomers (21%). The classes of compounds detected in the leaf oil of Synedrella nodiflora were aliphatic alcohols, monoterpenes, sesquiterpene hydrocarbons and oxygenated sesquiterpenes. The major components of this oil are β‐caryophyllene, β‐farnesene, germacrene‐D and β‐cubebene.
The chemical composition of two clary sage chemotypes and their hybrids
Authors: Elnir Oz , Ravid Uzi , Putievsky Eli , Dudai Nativ , Ladizinsky Gideon 
Published: November 2006

AbstractThe chemical composition of two essential oil types of Salvia sclarea L. during early and late flowering stages was analysed. A new chemotype with relatively high citral, geranyl acetate and geraniol content was observed in two small populations growing in northern Israel. Comparison of the new chemotype with a Russian type showed a great difference in composition and organoleptic character between the two oils. The highest amount of mono‐ and sesquiterpene hydrocarbons was detected in the Israeli type, at the early flowering stage. The relative quantity of most components of hybrid oils was intermediate between those of the parent plants.