Yazar "Koşar, Müberra" için listeleme
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Effect of an acid treatment on the phytochemical and antioxidant characteristics of extracts from selected Lamiaceae species
Koşar, Müberra; Dorman, HJD; Hiltunen, R (Elsevier Sci LTD, 2005)Aqueous-methanol extracts were prepared from basil (Ocimum basilicum L.), bay (Laurus nobilis L.), oregano (Origanum vulgare L.), rosemary (Rosmarinus officinalis L.), sage (Salvia officinalis L.), savory (Satureja hortensis ... -
Effect of brining on biological activity of leaves of Vitis vinifera L. (Cv. Sultani Cekirdeksiz) from Turkey
Koşar, Müberra; Küpeli, Esra; Malyer, Hulusi; Uylaser, Vildan; Türkben, Cihat; Başer, K. Hüsnü Can (American Chemical Society, 2007)Leaves of Vitis vinifera (Fam. Vitaceae) cv. 'Sultani ekirdeksiz' cultivated in Manisa-Alaehir in western Turkey, were processed with or without brine. Fresh, brined, and nonbrined leaves (after being subjected to 3 months ... -
Effect of maturation on the composition and biological activity of the essential oil of a commercially important Satureja species from Turkey: Satureja cuneifolia Ten. (Lamiaceae)
Koşar, Müberra; Demirci, Betül; Demirci, Fatih; Başer, K. Hüsnü Can (American Chemical Society, 2008)The essential oil obtained by hydrodistillation from aerial parts of Satureja cuneifolia Ten., collected in three different maturation stages such as preflowering, flowering, and postflowering, were analyzed simultaneously ... -
The effect of vasoactive intestinal peptide (VIP) and inhibition of nitric oxide on renal tissue injury of rats exposed to hemorrhagic ischemia and retransfusion: A possible interaction mechanism among mast cells and tissue histamine
Erden, S. H.; Tunçel, N.; Aydın, Y.; Şahintürk, V.; Koşar, Müberra; Tunçel, Muzaffer (New York Academy of Sciences, 1998)[No abstract available] -
Endothelium-Dependent and Independent Effects of Garlic on Rat Aorta
Öztürk, Yusuf; Aydın, Süleyman; Koşar, Müberra; Başer, K. Hüsnü Can (Elsevier Sci Ireland LTD, 1994)Effects of garlic on isolated rat aorta were investigated by comparing with those of acetylcholine and L-arginine in the presence and absence of endothelium. For this purpose, certain linear and non-linear regression models ... -
The Essential Oil Composition of Dictamnus-Albus From Turkey
Başer, K. Hüsnü Can; Koşar, Müberra; Malyer, Hulusi; Özek, Temel (Georg Thieme Verlag, 1994)… -
An improved HPLC post-column methodology for the identification of free radical scavenging phytochemicals in complex mixtures
Koşar, Müberra; Dorman, D; Başer, K. Hüsnü Can; Hiltunen, Raimo (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 ... -
An improved on-line HPLC-DPPH* method for the screening of free radical scavenging compounds in water extracts of Lamiaceae plants
Koşar, Müberra; Dorman, HJD; Bachmayer, O; Başer, K. Hüsnü Can; Hiltunen, R (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 ... -
In vitro antioxidant properties and phenolic composition of Salvia halophila Hedge from Turkey
Koşar, Müberra; Göğer, Fatih; Başer, K. Hüsnü Can (Elsevier Sci LTD, 2011)An endemic plant of Turkey Salvia halophila Hedge (Lamiaceae) was examined for its antioxidant activity and phenolic compositions. The aerial part of S. halophila was extracted with different solvents in an order of ... -
In vitro antioxidant properties and phenolic composition of Salvia virgata Jacq. from Turkey
Koşar, Müberra; Göğer, Fatih; Başer, K. Hüsnü Can (American Chemical Society, 2008)Antioxidant activities and phenolic compositions of the active fractions of Salvia virgata Jacq. (Lamiaceae) from Turkey were examined. The aerial part of S. virgata was extracted with different solvents in an order of ... -
Iron(III) reducing and antiradical activities of three Sideritis from Turkey
Dorman, H. J. Damien; Koşar, Müberra; Başer, K. Hüsnü Can; Hiltunen, Raimo (Informa Healthcare, 2011)Objective: The antiradical activities of the various solvent extracts of Sideritis species are investigated here for the first time. Materials and methods: Plant samples were sequentially extracted with n-hexane, ... -
Is there an association of plasma homocysteine levels with vascular involvement in patients with Behcet's syndrome
Korkmaz, C; Bozan, Berrin; Koşar, Müberra; Şahin, F; gülbas, Z (Clinical & Exper Rheumatology, 2002)Objective. To assess whether or not plasma homocysteine levels play a part in vascular involvement in Behcet's syndrome (BS). Methods. 74 consecutive BS patients fulfilling the criteria of the International Study Group for ... -
Lycium barbarum L. ve L. ruthenicum murray meyvaları üzerinde kimyasal araştırmalar ve biyoaktivite çalışmaları
Altıntaş, Ayhan (Anadolu Üniversitesi, 2003)Başta Çin olmak üzere birçok Asya ülkesinde halk arasında yaygın olarak kullanılan Lycium türleri ile ülkemizde ilk kez kimyasal araştırma ve biyoaktivite çalışması gerçekleştirilmiştir. Türkiye'de doğadan toplanmış L. ... -
Ovarian, uterine and brain mast cells in female rats: Cyclic changes and contribution to tissue histamine
Using histochemical techniques, we determined mast cell content in ovarian, uterine and brain tissues throughout the estrus cycle of the rat. In one series of experiments, 26 cycling female rats were used for the measurement ... -
Phenolic composition and biological activities of Salvia halophila and Salvia virgata from Turkey
Akkol, Esra Küpeli; Göğer, Fatih; Koşar, Müberra; Başer, K. Hüsnü Can (Elsevier Sci LTD, 2008)The aerial parts of Salvia halophila and Salvia virgata were subjected to Soxhlet extraction with different solvents such as n-hexane, ethyl acetate, methanol, and aqueous methanol (50%). Plants were also extracted with ... -
Phenolic composition of strawberry genotypes at different maturation stages
Koşar, Müberra; Kafkas, E; Paydaş, S; Başer, K. Hüsnü Can (American Chemical Society, 2004)The effects of maturation (green, pink, and ripe) on phenolic composition of strawberry cultivars Camarosa, Dorit, Chandler, and Osmanli and their hybrids were investigated using a high-pressure liquid chromatography (HPLC) ... -
Phenolic profile and antioxidant evaluation of Mentha x piperita L. (peppermint) extracts
Seven extracts were prepared from Mentha x piperita (peppermint) leaves in sequence using a Soxhlet apparatus, viz. (40-60°) light petroleum (PE), dichloromethane (CH2Cl2), acetonitrile (ACN), ethyl acetate (EtOAc), methanol ... -
Phenolic Profile and Antioxidant Evaluation of Mentha x piperita L., (Peppermint) Extracts
Dorman, H. J. Damien; Koşar, Müberra; Başer, K. Hüsnü Can; Hiltunen, Raimo (Natural Products Inc, 2009)Seven extracts were prepared from Mentha x piperita (peppermint) leaves in sequence using a Soxhlet apparatus, viz. (40-60 degrees) light petroleum (PE), dichloromethane (CH(2)Cl(2)), acetonitrile (ACN), ethyl acetate ...