Güncel Gönderiler: Eczacılık Fakültesi
Toplam kayıt 1731, listelenen: 961-980
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An improved on-line HPLC-DPPH* method for the screening of free radical scavenging compounds in water extracts of Lamiaceae plants
(Consultants Bureau, 2003)An on-line HPLC-1,1-diphenyl-2-picrylhydrazyl (DPPH*) method has been improved for the detection of polar and nonpolar radical scavenging compounds from complex plant extracts. Eight water extracts were prepared from ... -
An improved HPLC post-column methodology for the identification of free radical scavenging phytochemicals in complex mixtures
(Springer Heidelberg, 2004)The importance of natural antioxidants principally relates to their health-promoting properties. The discovery of new sources of established compounds or more potent compounds is a costly exercise and any technique capable ... -
The biological activity and essential oil composition of 17 Agathosma (Rutaceae) species
(Allured Publ Corp, 2006)The essential oil composition, antimicrobial, anti-inflammatory and cytotoxic activities of 17 indigenous Agathosma species (18 samples) were investigated in order to validate their use in traditional healing. The results ... -
The essential oil composition and chemotaxonomical appraisal of South African Pelargoniums (Geraniaceae)
(Allured Publ Corp, 2006)A plethora of information is available on the essential oil composition of commercially grown Pelargonimus namely P. capitatum, P. graveolens and P. radens and their hybrids, while only a few chemical investigations have ... -
New, sesquiterpenoid-type bicyclic compounds from the buds of Betula pubescens - Ring-contracted products of beta-caryophyllene?
(Wiley-V C H Verlag GMBH, 2004)The essential oils obtained from the buds of Betula pubescens ssp. pubescens and B. pubescens ssp. czerepanovii were analyzed both by GC and GC/MS and, of the 31 compounds identified, 14-acetoxy-beta-caryophyllene was ... -
Seasonal and geographical variation of Heteropyxis natalensis essential oil and the effect thereof on the antimicrobial activity
(Elsevier Science BV, 2007)Heteropyxis natalensis (Heteropyxidaceae) is traditionally used to treat respiratory disorders, and as a decongestant and antimicrobial agent. The seasonal variation of the hydrodistilled essential oil was investigated. ... -
A seasonal variation study of the chemical composition and antimicrobial activity of the essential oil of Agathosma ovata (Thunb.) Pillans (Rutaceae)
(Allured Publ Corp, 2006)A seasonal variation study was performed on the chemical composition of the essential oil of Agathosma ovata (Rutaceae). In addition, this study looked at how variations may impact the antimicrobial activity of A. ovata. ... -
Micro distillation and essential oil chernistry - a useful tool for detecting hybridisation in Plectranthus (Lamiaceae)
(Elsevier Science BV, 2006)The essential oil composition is reported for Plectranthus ciliatus, Plectranthus zuluensis and their putative hybrid. The essential oil chemistry is in support of morphological data and pollination studies, which have ... -
The essential oil constituents and antimicrobial activity of Anthemis aciphylla Boiss. var. discoidea Boiss.
(Pharmaceutical Soc Japan, 2006)The essential oil of aerial parts, leaves and flowers of the endemic Anthemis aciphylla BOISS. var. discoidea BOISS. (Asteraceae) were obtained by hydrodistillation. The oils were analyzed both by GC and GC-MS on a polar ... -
The antimicrobial, antimalarial and toxicity profiles of helihumulone, leaf essential oil and extracts of Helichrysum cymosum (L.) D. Don subsp cymosum
(Elsevier Science BV, 2006)Helichrysum cymosum, an aromatic plant used in traditional medicine to treat respiratory ailments and wound infections is widely distributed throughout Southern Africa. Using bioassay-guided fractionation, an active compound ... -
Effects of extracts from certain Sideritis species on swimming performance in mice
(John Wiley & Sons LTD, 1996)Extracts obtained from S. libanotica ssp. kurdica, S. lanata, S. perfoliata and S. athoa on mouse swimming performance were investigated using two different doses. In order to compare their effects on the swimming experiments, ... -
Analysis of the volatile constituents of five African and Mediterranean Hypericum L. (Clusiaceae, Hypericoideae) species
(Allured Publ Corp, 2007)The volatile constituents of five species of the medicinally and ornamentally valuable genus Hypericurn L. (St. John's Wort; Clusiaceae), with native distributions in Africa and the Mediterranean regions of Europe and Asia, ... -
Study of the essential oil composition of Pinus sylvestris from Turkey
(Springer, 2006)The needle oils of Pinus sylvestris L were analyzed by GC and GC-MS. The results showed some qualitative and quantitative variations. Forty-three components were identified in the oils of P. sylvestris. All the samples of ... -
Anti-inflammatory and antinociceptive activities of Salvia halophila and Salvia virgata from Turkey
(Georg Thieme Verlag Kg, 2007)… -
Antioxidant and antimicrobial activities of Tamus communis L. ssp cretica (L.) Kit Tan
(Georg Thieme Verlag Kg, 2007)… -
The glycosidically bound volatile compounds of Taxus baccata
(Consultants Bureau, 2003)The steam volatiles obtained from the fresh and dried needles of Taxus baccata (Taxaceae), collected from Turkey after enzymatic hydrolysis, were analyzed by GC/MS. Sixty-three compounds representing 88.6% of the oil ... -
Antimicrobial activities of methanol extracts and essential oils of Rosmarinus officinalis, depending on location and seasonal variations
(Elsevier Sci LTD, 2007)Rosmarinus officinalis is widely found in the lands of Aegean and Mediterranean regions of Turkey. The goal of this work was to test the antimicrobial activity of the essential oils and methanolic extracts of R. officinalis ... -
Chemical composition and antimicrobial activity of the essential oil of Anthemis wiedemanniana from Turkey
(Springer, 2007)The chemical composition and antimicrobial activity of the essential oil from aerial parts of Anthemis wiedemanniana, an endemic taxon of Turkey, were investigated. Linalool (12.75%), 1,8-cineole (8.49%), hexadecanoic acid ... -
Analysis of sugars, organic acids and vitamin C contents of blackberry genotypes from Turkey
(Elsevier Sci LTD, 2006)The paper reports the composition of some quality characteristics of five blackberry varieties ("C. Thornless", "Bursa 2", "Navaho", "Jumbo" and "Loch Ness"). Main soluble sugar and acid contents of experimental varieties ... -
Study of the essential oils of Thymus haussknechtii Velen and Thymus kotschyanus Boiss. et Hohen var. kotschyanus (Lamiaceae) taxa from the eastern Anatolian region in Turkey
(John Wiley & Sons LTD, 2005)The essential oils of water distilled aerial parts of Thymus haussknechtii and Thymus kotschyanus var. kotschyanus (Lamiaceae) were analysed by GC/MS system. Seventy-eight components were identified comprising 88.0 and ...