Yazar "Ceylan, Özgür" için listeleme
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HPLC-DAD Phenolic Composition, Antioxidant, Anticholinesterase, Antidiabetic and Anti-quorum Sensing Properties of Bitter Kola (Garcinia kola) and Kolanut (Cola acuminata)
Boudiba, Sameh; Küçükaudın, Selçuk; Tamfu, Alfred Ngenge; Blaise, Kom; Munvera, Aristide Mfifen; Ceylan, Özgür (WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2023)Background: Eating Cola acuminata and Garcinia cola nuts in African societies symbolizes in socio-cultural hospitality. They stimulate the nervous system, reduce fatigue and sleep. Objectives:To determine the phenolic ... -
HPLC-DAD phenolic profiles, antibiofilm, anti-quorum sensing and enzyme inhibitory potentials of Camellia sinensis (L.) O. Kuntze and Curcuma longa L.
Tamfu, Alfred Ngenge; Ceylan, Özgür; Küçükaydın, Selçuk; Duru, Mehmet Emin (Academic Press, 2020)This study aimed at investigating phenolic composition, anti-quorum sensing and enzyme inhibitory potential of Camellia sinensis and Curcuma longa. HPLC-DAD identified and quantified curcumin (398.67 ± 0.34 mg/g), ... -
In vitro biological activities of potassium metaborate; antioxidative, antimicrobial and antibiofilm properties
Baygar, Tuba; Saraç, Nurdan; Ceylan, Özgür; Balcı, Uydu; Uğur, Aysel; Boran, Rukiye (TENMAK Bor Araştırma Enstitüsü, 2022)Antioxidant, antimicrobial and antibiofilm activities of potassium metaborate (KBO2) was investigated within the present study. Antioxidant capacity of potassium metaborate was determined by β-carotene bleaching (BCB) assay ... -
IN VITRO MONOSPECIES, MULTISPECIES AND NECROTROPHIC BIOFILM PRODUCTION OF Legionella pneumophila IN WATER SUPPLY SYSTEMS
Ceylan, Özgür; Turasay, Bülent (Parlar Scientific Publications (P S P), 2015)Biofilms provide a shelter for microorganism to survive in unsuitable environments. Legionella pneumophila can produce monospecies biofilms in vitro, but usually exist in multispecies biofilms in nature. In this study, ... -
Inhibition of quorum sensing-regulated behaviors by Scorzonera sandrasica
Boşgelmez-Tinaz, Gulgun; Ulusoy, Seyhan; Uğur, Aysel; Ceylan, Özgür (Springer, 2007)Many Gram-negative bacteria use N-acyl homoserine lactone signal molecules to monitor their own population density and coordinate gene regulation in a process called quorum sensing (QS). Increasing evidence implies that ... -
Isolation of soil Streptomyces as source antibiotics active against antibiotic-resistant bacteria
Ceylan, Özgür; Ökmen, Gülten; Uğur, Aysel (2008)Bu calismanin amaci toprakta yaygin olarak bulunan ve antibiyotik ureticileri olarak bilinen Streptomyces'lerin in vitro antimikrobiyal aktiviteleridir. Turkiye, Mugla'daki farkli alanlardan Streptomyces izolatlari, coklu ... -
A novel turn-on fluorometric "reporter-spacer-receptor" chemosensor based on calix[4]arene scaffold for detection of cyanate anion
Bozkurt, Selahattin; Halay, Erkan; Durmaz, Mustafa; Topkafa, Mustafa; Ceylan, Özgür (Wiley, 2021)Herein, a novel calix[4]arene compound, which was modified by the 2-(2-aminophenyl)benzothiazole fragment with cyanate recognition function was designed based on the reporter-spacer-receptor sensing system. The construction ... -
Occurrence of resistance to antibiotics, metals, and plasmids in clinical strains of Staphylococcus spp
Uğur, Aysel; Ceylan, Özgür (Elsevier Science Inc, 2003)Background. Presence of staphylococci resistant to antibiotics is of concern, as is the possible spread of resistance determinants among Staphylococcus species. During the past several years, a series of staphylococcal ... -
Phenolic Composition, Anti-Biofilm, Anti-Quorum Sensing, Antioxidant and Enzyme Inhibitory Activities of Pteleopsis Suberosa (Combretaceae) Leaves
Ceylan, Özgür; Tamfu, AlfredNgenge; Küçükaydın, Selçuk; Koudoro, Alain Yaya (JADOUN SCIENCE PUBLISHING GROUP, 2023)P. suberosa is a multipurpose medicinal plant in West and Central Africa. Fourteen phenolic compounds were identified in the P. suberosa leaves extract using HPLC-DAD and gallic acid (175.10 & PLUSMN;0.42 & mu;g/g) was the ... -
Phenolic Composition, Enzyme Inhibitory and Anti-quorum Sensing Activities of Cinnamon (Cinnamomum zeylanicum Blume) and Basil (Ocimum basilicum Linn)
Tamfu, Alfred Ngenge; Küçükaydın, Selçuk; Ceylan, Özgür; Saraç, Nurdan; Duru, Mehmet Emin (Springer, 2021)Cinnamomum zeylanicum and Ocimum basilicum are two plants used by many cultures for food and medicinal purposes. The phenolic composition of ethanol extracts of both plants were determined by HPLC-DAD. A total of seventeen ... -
Phenolic profiles, antioxidant, antiquorum sensing, antibiofilm and enzyme inhibitory activities of selected Acacia species collected from Benin
Alain, Koudoro Yaya; Tamfu, Alfred Ngenge; Küçükaydın, Selçuk; Ceylan, Özgür; Cokou Pascal, Agbangnan Dossa; Félicien, Avlessi (Academic Press, 2022)Gum arabica is a local commercial nutraceutical and food preservative collected mostly from acacia plants. HPLC-DAD analysis identified gallic acid, syringic acid, ferulic acid, coumarin, rutin and rosmarinic acid in ... -
Phytochemical composition, anti-biofilm and anti-quorum sensing potential of fruit, stem and leaves of Salvadora persica L. methanolic extracts
Noumi, Emira; Snoussi, Mejdi; Merghni, Abderrahmen; Nazzaro, Filomena; Quindos, Guillermo; Akdamar, Gültekin; Ceylan, Özgür (Academic Press Ltd- Elsevier Science Ltd, 2017)Emergence of antibiotic resistance among pathogenic bacteria encourages us to search for new molecules as an alternative treatment. The aim of this study was to evaluate the antiquorum sensing (anti-QS) and antibiofilm ... -
Phytochemical Profiling of Allium subhirsutum L. Aqueous Extract with Antioxidant, Antimicrobial, Antibiofilm, and Anti-Quorum Sensing Properties: In Vitro and In Silico Studies
Snoussi, Mejdi; Noumi, Emira; Hajlaoui, Hafed; Bouslama, Lamjed; Hamdi, Assia; Saeed, Mohd; Ceylan, Özgür (MDPI, 2022)The present study was the first to evaluate the phytochemical composition, antioxidant, antimicrobial, antibiofilm, and anti-quorum sensing potential of Allium subhirsutum L. (hairy garlic) aqueous extract through in vitro ... -
Phytochemical screening, antibacterial, antifungal, antiviral, cytotoxic, and anti-quorum-sensing properties of Teucrium polium l. aerial parts methanolic extract
Alreshidi, Mousa; Noumi, Emira; Bouslama, Lamjed; Ceylan, Özgür; Veettil, Vjajid N.; Adnan, Mohd; Snoussi, Mejdi (MDPI AG, 2020)The chemical profile of Teucrium polium L. (T. polium) methanolic extract was tested using liquid chromatography coupled with high resolution mass spectrometry (HR-LCMS). Disc diffusion and microdilution assays were used ... -
A preliminary study of chemical profiles of honey, cerumen, and propolis of the african stingless bee meliponula ferruginea
Popova, Milena Petkova; Gerginova, Dessislava; Trusheva, Boryana S.; Simova, Svetlana D.; Tamfu, Alfred Ngenge; Ceylan, Özgür; Clark, Kerry; Bankova, Vassya Stefanova (MDPI AG, 2021)Recently, the honey and propolis of stingless bees have been attracting growing atten-tion because of their health-promoting properties. However, studies on these products of African Meliponini are still very scarce. In ... -
Removing Legionella pneumophila and biofilms from water supply systems using plant essential oils
Ceylan, Özgür; Turasay, Bülent (Iwa Publishing, 2017)Antibacterial and antibiofilm activities of sage (Salvia officinalis), thyme (Thymus vulgaris), peppermint (Mentha x piperita) and lemon (Citrus limonum) essential oils (EOs), supplied as commercial preparations, were ... -
Synthesis and Antibacterial Activities of Boronic Acid-Based Recyclable Spherical Polymer Brushes
Çiçek, Hüseyin; Koçak, Gökhan; Ceylan, Özgür; Bütün, Vural (Polymer Soc Korea, 2019)Crosslinked poly(4-vinylbenzyl chloride) (PVBC) microbead was prepared by suspension polymerization. Various spherical polymer brushes (SPBs) were produced by grafting polymeric chains on their surfaces via surface ... -
Synthesis and evaluation of inhibitory potentials of microbial biofilms and quorumsensing by 3-(1,3-dithian-2-ylidene) pentane2,4-dione and ethyl-2-cyano-2-(1,3-dithian-2-ylidene) acetate
Tamfu, Alfred Ngenge; Boukhedena, Wafia; Boudiba, Sameh; Deghboudj, Samir; Ceylan, Özgür (Pensoft Publishers, 2022)The virulence and resistance of pathogenic microorganisms are promoted by quorum-sensing (QS) mediated traits and biofilms. The development of antimicrobial agents which can reduce the incidence of microbial resistance by ... -
Synthesis of benzoyl esters of beta-amyrin and lupeol and evaluation of their antibiofilm and antidiabetic activities
Tamfu, Alfred Ngenge; Munvera, Aristide Mfifen; Botezatu, Andreea Veronica Dediu; Ceylan, Özgür (ELSEVIER, 2022)Diabetes as well as the enhanced microbial multidrug resistance resulting from biofilm formation, constitutes some of the major health problems around the world. Triterpenoids and their derivatives have been shown to have ... -
Synthesis of cross-linked diazaborine-based polymeric microparticles with antiquorum sensing, anti-swarming, antimicrobial, and antibiofilm properties
Tamfu, Alfred Ngenge; Koçak, Gökhan; Ceylan, Özgür; Çıtak, Funda; Bütün, vural; Çiçek, Hüseyin (John Wiley and Sons Inc, 2023)Transmission of infectious diseases and resistance by microorganisms is a global health threat. Antimicrobial polymers are increasingly being developed as biocides with greater applications than traditional antibiotics. ...