Yazar "Harmandar, Mansur" için listeleme
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Antioxidant, anticholinesterase and antimicrobial constituents from the essential oil and ethanol extract of Salvia potentillifolia
Kıvrak, İbrahim; Duru, Mehmet Emin; Öztürk, Mehmet; Mercan, Nazime; Harmandar, Mansur; Topçu, Gülaçtı (Elsevier Sci Ltd, 2009)The essential oil of Salvia potentillifolia was analysed by GC and GC-MS. Totally, 123 components were detected in both hydrodistilled and steam-distilled oils, alpha- and beta-pinenes being major compounds. The antioxidant ... -
Application of GC, GC-MSD, ICP-MS and Spectrophotometric Methods for the Determination of Chemical Composition and In Vitro Bioactivities of Chroogomphus rutilus: The Edible Mushroom Species
Çayan, Fatih; Tel-Çayan, Gülsen; Duru, Mehmet Emin; Öztürk, Mehmet; Türkoğlu, Aziz; Harmandar, Mansur (Springer, 2014)Chemical composition of Chroogomphus rutilus, the edible mushroom species, was analyzed by using gas chromatography (GC), gas chromatography mass spectrometry (GC-MSD) and inductively coupled plasma mass spectrometry ... -
Bioactive Compounds, Chemical Composition, and Medicinal Value of the Giant Puffball, Calvatia gigantea (Higher Basidiomycetes), from Turkey
Kivrak, Ibrahim; Kivrak, Seyda; Harmandar, Mansur (Begell House Inc, 2016)In this study, the compositions of Calvatia gigantea were first analyzed in order to elucidate its chemical basis for development as a health-enhancing food or medicine. This study investigates the chemical composition ... -
Chemical composition and antifungal properties of essential oils of three Pistacia species
Duru, Mehmet Emin; Çakır, Ahmet; Kordali, Şaban; Zengin, H.; Harmandar, Mansur; Izumi, S; Hirata, T (Elsevier Science Bv, 2003)The chemical composition of essential oils obtained from the leaves of Pistacia vera, Pistacia terebinthus, Pistacia lentiscus and the resin of Pistacia lentiscus were analyzed by GC and GG-MS. alpha-Pinene, beta-pinene, ... -
Chemical composition of the essential oil and hexane extract of Salvia chionantha and their antioxidant and anticholinesterase activities
Tel, Gülsen; Öztürk, Mehmet; Mehmet, Emin Duru; Harmandar, Mansur; Topcu, Gulacti (Pergamon-Elsevier Science Ltd, 2010)The essential oil and methyl ester of hexane extract of Salvia chionantha Boiss. were analysed by GC and GC-MS. Totally, 54 components were detected in the essential oil and all of them were fully determined. Germacrene D ... -
Chemical Composition, Antioxidant and Anticholinesterase Activities of the Essential Oil of Salvia chrysophylla Staph
Duru, Mehmet Emin; Tel, Gulsen; Öztürk, Mehmet; Harmandar, Mansur (Acg Publications, 2012)The essential oil from the aerial parts of Salvia chrysophylla Staph (Lamiaceae), endemic to Turkey, was investigated by using GC and GC-MS. Fifty-four of 55 components, represented 99.52% of the total oil, were identified. ... -
Development and validation of modified QuEChERS method coupled with GC-MS/MS for 123 pesticide residues in food
Harmandar, Mansur; Kıvrak, Şeyda (2018)In this study, a gas chromatography-tandem mass spectrometry (GCMS/MS) instrument, which has been widely used in recent years and has high separation power, selectivity and ability to identify pesticides has been used. It ... -
Development of a rapid method for the determination of antibiotic residues in honey using UPLC-ESI-MS/MS
Kıvrak, İbrahim; Kıvrak, Şeyda; Harmandar, Mansur (Soc Brasileira Ciencia Tecnologia Alimentos, 2016)An accurate, reliable and fast multianalyte/multiclass ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for the simultaneous analysis of 23 pharmaceuticals, ... -
The Effect of Temperature on the Essential Oil Components of Salvia potentillifolia Obtained by Various Methods
Öztürk, Mehmet; Tel-Çayan, Gülsen; Duru, Mehmet Emin; Harmandar, Mansur; Topcu, Gülaçtı (Sage Publications Inc, 2009)The chemical compositions of the essential oils of Salvia potentillifolia (Lamiaceae) were analyzed by GC and GC-MS. The oils were obtained by four different methods (hydrodistillation, steam distillation, and two extraction ... -
The Effects of Science Teaching Through Team Game Tournament Technique on Success Level and Affective Characteristics of Students
Harmandar, Mansur; Çil, Emine (2008)The purpose of this study is to investigate the effects of teaching a unit & #8220; Reproduction and Growth in Living Things& #8221; from the science curriculum of 8th graders by using Team Game Tournament (TGT) ... -
Fatty Acid Composition, Antioxidant, Anticholinesterase and Tyrosinase Inhibitory Activities of Four Serratula Species from Anatolia
Tel, Gulsen; Öztürk, Mehmet; Duru, Mehmet Emin; Dogan, Bekir; Harmandar, Mansur (Acg Publications, 2013)Serratula L. (Astareceae) rich in ecdysteroid, phytoecdysteroids and flavonoids some have various biological activities including antibacterial and antitumor. The fatty acid profiles of four Serratula species were investigated ... -
Free amino acid profiling in the giant puffball mushroom (Calvatia gigantea) using UPLC-MS/MS
Kivrak, Ibrahim; Kivrak, Seyda; Harmandar, Mansur (Elsevier Sci Ltd, 2014)Wild edible and medicinal mushroom, Calvatia gigantea, was quantitatively analyzed for the determination of its free amino acids using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The ... -
GC-MS Analysis and Antimicrobial Activity of Essential Oil of Stachys cretica subsp smyrnaea
Öztürk, Mehmet; Duru, Mehmet Emin; Aydoğmuş-Öztürk, Fatma; Harmandar, Mansur; Mahlıçlı, Melda; Kolak, Ufuk; Ulubelen, Ayhan (Natural Products Inc, 2009)The essential oil from the aerial parts of Stachys cretica L. subsp. smyrnaea Rech. fil. (Lamiaceae), endemic to Turkey, was investigated by using GC and GC-MS. Thirty-four of 37 components, represented 99.7% of the total ... -
GC-MS Analysis of the Antioxidant Active Fractions of Micromeria juliana with Anticholinesterase Activity
Öztürk, Mehmet; Kolak, Ufuk; Duru, Mehmet Emin; Harmandar, Mansur (Natural Products Inc, 2009)The aerial parts of Micromeria juliana (L.) Bentham ex Reichb. were extracted with light petroleum, acetone and methanol, successively. The antioxidant activity of different concentrations of the extracts was evaluated ... -
A new rapid spectrophotometric method to determine the rosmarinic acid level in plant extracts
Öztürk, Mehmet; Duru, Mehmet E.; Ince, Burcu; Harmandar, Mansur; Topcu, Guelacti (Elsevier Sci Ltd, 2010)A novel spectrophotometric method to determine the amount of rosmarinic acid in unpurified methanol extracts of the plants was developed. Rosmarinic acid is a naturally occurring bioactive compound in plants as an ester ... -
Phenolic Compounds of Pinus brutia Ten.: Chemical Investigation and Quantitative Analysis Using an Ultra-Performance Liquid Chromatography Tandem Mass Spectrometry with Electrospray Ionization Source
Kivrak, Ibrahim; Kivrak, Seyda; Harmandar, Mansur; Cetintas, Yunus (Acg Publications, 2013)In this study, phenolic content of Pinus brutia's bark was examined using an ultra-performance liquid chromatography tandem mass spectrometry with electrospray ionization source (UPLC-ESI-MS/MS) working in multiple reaction ... -
Studies on the antioxidant activity of the essential oil and methanol extract of Marrubium globosum subsp globosum (lamiaceae) by three different chemical assays
Sarıkürkcü, Cengiz; Tepe, Bektaş; Daferera, Dimitra; Polissiou, Moschos; Harmandar, Mansur (Elsevier Sci Ltd, 2008)This study is designed to examine the chemical composition and in vitro antioxidant activity of the essential oil and sub-fractions of the methanol extract of Marrubium globosum subsp. globosum. The GC and GC-MS analysis ...
