Güncel Gönderiler: Araştırma Merkezleri
Toplam kayıt 492, listelenen: 361-380
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New caryophyllene derivatives from Betula litwinowii
(American Chemical Society, 2000)Four new caryophyllene derivatives- 14-hydroxy-4,5-dihydro-beta-caryophyllene (1), 14-acetoxy-4,5 -dihydro-beta-caryophyllene (2), 4,5-dihydro-beta-caryophyllene-14-al (3), and caryophylla-8(14)-en-5-one (4)-are reported ... -
Thalictricoside, a new phenolic compound from Thalictrum orientale
(Walter De Gruyter GMBH, 2003)From the underground parts of Thalictrum orientale Boiss., a new phenolic compound 1 was isolated in addition to one known cyanoglycoside, lithospermoside (2). For the structure elucidation of all compounds, 1D- and 2D-NMR ... -
Antimicrobial activities of Ferulago essential oils
(Verlag Z Naturforsch, 2000)Essential oils from Ferulago asparagifolia Boiss., F. galbanifera (Miller) W. Koch, F. humilis Boiss. (Endemic), F. trachycarpa Boiss. growing in Turkey were evaluated against 15 microorganisms for their antifungal and ... -
Composition of the essential oil of Ononis viscosa subsp breviflora
(Consultants Bureau, 2002)Water-distilled essential oil from Ononis viscosa L. subsp. breviflora (DC) Nyman was analyzed by GC/MS. Forty compounds were characterized representing 81.3% of the oil. Hexahydrofamesylacetone (12.5%), carvacrol(10.0%), ... -
Comparison of ascorbic and citric acid contents in Rosa canina L. fruits growing in Central Asian region
(Akademiya Nauk Uzbekskoi Ssr, 1998)The evaluation of Rosa canina L. fruits and its products have been dependent in part on organic acid contents. In this study, ascorbic and citric acid contents in Rosa canina L. fruits collected from five different regions ... -
Industrial utilization of medicinal and aromatic plants
(International Society Horticultural Science, 1999)A tremendous change has been going on globally in the last two decades, and especially in the last one in favour of the increased use of medicinal and aromatic plant products in pharmaceutical and related industries. This ... -
Screening of biotransformation products of carvone enantiomers by headspace-SPME/GC-MS
(Verlag Z Naturforsch, 2001)In the course of our continuing work on transformation of monoterpenes by microorganisms, the biotransformation of (+)- and (-)-carvone was carried out. The metabolites formed during microbial transformations were screened ... -
Composition of the essential oils of six endemic Salvia spp. from Turkey
(Wiley, 2003)The water-distilled essential oils from dried aerial parts of Salvia blepharochlaena, S. caespitosa, S. divaricata, S. hypargeia, S. longipedicellata and S. pilifera (Lamiaceae), endemic in Turkey, were analysed by GC-MS. ... -
Composition of essential oils from five endemic Sideritis species
(Allured Publ Corp, 2003)S. argyrea P.H. Davis, S. armeniaca Bornm., S. hololeuca Boiss. et Heldr. Apud Bentham, S. stricta Boiss. et Heldr. Apud Bentham and S. taurica Stephan ex Willd., are endemic species in Turkey. Water-distilled essential ... -
Essential oil and antimicrobial evaluation of the Pistacia eurycarpa
(Consultants Bureau, 2001)The compositions of microdistilled and hydrodistilled essential oils of the mastix of Pistacia eurycarpa Yalt. (Anacardiaceae) were compared. The essential oils were analyzed by GC/MS: alpha- and beta-pinenes were found ... -
Composition of the essential oil of Xanthogalum purpurascens Lallem.
(Allured Publ Corp, 2001)Water-distilled oil from fruits of Xanthogalum purpurascens was analyzed by GC/MS. One hundred and nineteen compounds representing 85.2% of the oil were identified with bicyclogermacrene (12.0%), beta -phellandrene (7.1%), ... -
Composition of the essential oil of Heracleum paphlagonicum Czeczott
(Allured Publ Corp, 2000)Crushed fruits of Heracleum paphlagonicum, a rare endemic of Turkey, were hydrodistilled and the oil was analyzed by GC/MS. Ninety-seven compounds were identified representing 95.4% of the oil with octyl acetate (31.5%), ... -
Composition of the essential oil of Ferulago asparagifolia Boiss. from Turkey
(Allured Publ Corp, 2001)Water-distilled essential oil of the crushed fruits of Ferulago asparagifolia was analyzed by GC/MS. 2,3,6-trimethyl benzaldehyde (38.9%) and myrcene (18.2%) were identified as major constituents. -
The bioactive essential oil of Heracleum sphondylium L. subsp ternatum (Velen.) Brummitt
(Walter De Gruyter GMBH, 2003)The essential oil of Heracleum sphondylium L. subsp. ternatum (Velen.) Brummit (Umbelliferae) was isolated from crushed seeds by means of hydrodistillation and analyzed by GC and GC/MS. Major components were identified as ... -
Essential oils of annual Sideritis species growing in Turkey
(Swets Zeitlinger Publishers, 2000)Water distilled essential oils of five annual Sideritis species collected from different regions of Turkey were analysed by GC/MS. Results are tabulated and compared with main components of the essential oils of perennial ... -
Essential oils of two Hypericum species from Uzbekistan
(Consultants Bureau, 2002)The water-distilled essential oils from aerial parts of two Hypericum species (Hypericaceae) have been analyzed by GC/MS. The main components of the essential oils of Hypericum scabrum L. were alpha-pinene -11.2%; spathulenol ... -
Microdistillation as a useful tool for the analysis of minute amounts of aromatic plant materials
(Consultants Bureau, 2001)The MicroDistiller (Eppendorf), enables the distillation of aromatic material even in very small quantities. Using the simple microdistillation technique, minute amounts of Cyclotrichium leucotrichum (Stapf ex Rech. fil.) ... -
Essential oil constituents of Satureja boissieri from Turkey
(Consultants Bureau, 2001)Water-distilled essential oil from the aerial parts of S. boissieri was analyzed by GC/MS. Forty-five components were characterized representing 97% of the oil. The main components were identified as arvacrol (40.8%), ...
