Yazar "Karaoğlu, Şengül Alpay" için listeleme
-
1,2,4-Triazole-conjugated fluoroquinolones as potential candidates for new antibacterial agents
Cebeci, Yıldız Uygun; Karaoğlu, Şengül Alpay (Bentham Science Publications, 2024)In this study, synthesis of 1,2,4 triazole-fluoroquinolone hybrid compounds was realized. 7a-d hybrid compound was obtained as a result of mannich reaction with 6a-b triazole compounds norfloxacin and ciprofloxacin. 1H-NMR, ... -
Analysis of volatile compounds of alcea calvertii boiss. And its antimicrobial, anticholinesterase, and antityrosinase potency
Şener, Sıla Özlem; Kanbolat, Şeyda; Ulaş Çolak, Nevin; Badem, Merve; Aliyazıcıoğlu, Rezzan; Özgen, Ufuk; Karaoğlu, Şengül Alpay; Kandemir, Ali (2024)The research aimed to analyze the volatile compounds by using SPME-GC-MS and to detect anticholinesterase, antityrosinase, and antimicrobial potential of metanol extract of Alceacalvertii Boiss., an endemic species for ... -
Antibacterial activity of bryophyte species against Paenibacillus larvae isolates
Sevim, Elif; Baş, Yıldız; Çelik, Gonca; Pınarbaş, Müberra; Bozdeveci, Arif; Özdemir, Turan; Karaoğlu, Şengül Alpay; Akpınar, Rahşan (2017)This study was performed to determine the antibacterial activity of methanol extracts of 23 bryophyte species against Paenibacillus larvae isolates that cause American foulbrood diseases in honeybee larvae. The honey and ... -
Antibacterial effects of anatolian propolis on paenibacillus larvae
Sevim, Elif; Bozdevedi, Arif; Pınarbaş, Müberra; Kekeçoğlu, Meral; Akpınar, Rahşan; Keskin, Merve; Kolaylı, Sevgi; Karaoğlu, Şengül Alpay (Bursa Uludag University, 2021)Paenibacillus larvae (P. larvae) is a pathogenic bacterium causing American Foulbrood Disease (AFB) in honeybee larvae. It is necessary to develop alternative strategies for the control of this disease due to the serious ... -
Antimicrobial activity and a comparative essential oil analysis of Centaurea pulcherrima Willd. var. pulcherrima extracted by hydrodistillation and microwave distillation
Kahriman, N.; Tosun, G.; Iskender, N.Y.; Karaoğlu, Şengül Alpay; Yayli, N. (Taylor & Francis Online, 2012)The essential oils of Centaurea pulcherrima Willd. var. pulcherrima (Asteraceae) were isolated by hydrodistillation (HD) and a microwave distillation (MD), than characterised by GC-FID and GC-MS. A total of 58 and 57 ... -
Antimicrobial activity and analyses of six Geranium L. species with headspace SPME and hydrodistillation
Renda, Gülin; Çelik, Gonca; Korkmaz, Büşra; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (Taylor & Francis Ltd, 2016)A solid phase microextraction (SPME) method with gas chromatography-mass spectrometry (GC-MS) was used for analyses of the volatile compounds of six Geranium species; G. asphodeloides, G. psilostemon, G. purpureum, G. ... -
Antimicrobial activity and chemical composition of the essential oil from Campanula glomerata L. subsp. hispida (Witasek) Hayek
Sinek, Kadriye; İskender, Nagihan Yılmaz; Yaylı, Büşra; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (RTEÜ, Fen - Edebiyat Fakültesi, Biyoloji Bölümü, 2012)The volatile components of the essential oil from Campanula glomerata L. subsp. hispida (Witasek) Hayek was analyzed by GC and GCMS. Forty-eight compounds representing 89.0 % of the total oil were characterized and the ... -
Antimicrobial activity and composition of rindera lanata (LAM.) bunge var. canescens (A.D.C.) Kosn. essential oil obtained by hydrodistillation and microwave assisted sistillation
The composition of essential oils of Rindera lanata (LAM). Bunge var. canescens (A.D.C) Kosn. obtained by hydro-distillation (HD) and microwave assisted distillation (MW) by GC, GC/MS. Thirty three and thirty nine compounds ... -
Antimicrobial activity and essential oil compositions of two Ranunculus species from Turkey: R. constantinopolitanus and R. arvensis
Terzioğlu, S.; Yaşar, Ahmet; Yaylı, Nuran; Yılmaz, Nagihan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2008)The isolated essential oils of Ranunculus constantinopolitanus and Ranunculus arvensis were tested for antimicrobial activity against the bacteria E. coli, K. pneumoniae, P. aeruginosa, E. faecalis, S. aureus, B. cereus ... -
Antimicrobial activity and volatile constituents of omphalodes cappadocica (Willd.) DC.
İskender, Nagihan Yılmaz; Kahriman, Nuran; Yücel, Murat; Karaoğlu, Şengül Alpay; Terzioğlu, Salih; Yaylı, Nurettin (2011)The composition of the essential oil isolated by hydrodistillation from Omphalodes cappadocica (Willd.) DC. (Boraginaceae) collected from 'Of', a town in Trabzon, was determined by GC-FID and GC-MS. Sixty components were ... -
Antimicrobial activity and volatile constituents of the flower, leaf, and stem of Paeonia daurica grown in Turkey
Tosun, Gonca; Kahriman, Nuran; Güleçalbay, Canan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (TÜBİTAK, 2011)The volatile constituents of the essential oils from the flower, leaf, and stem of Paeonia daurica Andrews were analyzed by GC and GC-MS. A total of 74 compounds were identified, constituting over 95.0%, 80.8%, and 98.2% ... -
Antimicrobial activity of Bacillus strains isolated from spring water and a novel bacteriocin: RS108
The aim of this research was to investigate the bacteriocins produced by Bacillus strains isolated from the spring water of Rize, in Turkey. Bacillus cereus RS108 was identified by both conventional and molecular methods, ... -
Antimicrobial and lipase inhibition of essential oil and solvent extracts of Cota tinctoria var. tinctoria and characterization of the essential oil
Erik, İshak; Bozdal, Gözde; Şener, Sıla Özlem; Korkmaz, Büşra; Karaoğlu, Şengül Alpay; Terzioğlu, Salih; Yaylı, Nurettin (TUBITAK, 2022)The essential oil (EO) of Cota tinctoria var. tinctoria was analyzed using GC-FID / MS. A total of 51 compounds were determined from this taxon, accounting for 99.79% in hydrodistillation. Monoterpenes were the primary ... -
Antimicrobial, cytotoxic, antiviral wffects, and apectroscopic characterization of metabolites produced by fusarium oxysporum YP9B
Kılıç, Gözde; Tosun, Gonca; Bozdeveci, Arif; Erik, İshak; Öztürk, Elif; Reis, Rengin; Sipahi, Hande; Cora, Merve; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (ACG Publications, 2021)The goal of the work is to determine the bioactive pharmaceutical metabolites produced by the Fusarium oxysporum YP9B isolate. Ten new natural compounds were isolated from the ethyl acetate extract of the F. oxysporum YP9B ... -
Antioxidant, antigenotoxic, antimicrobial activities and phytochemical analysis of dianthus carmelitarum
Aliyazıcıoğlu, Rezzan; Demir, Selim; Badem, Merve; Şener, Sıla Özlem; Korkmaz, Nuriye; Demir, Elif Ayazoğlu; Özgen, Ufuk; Karaoğlu, Şengül Alpay; Aliyazıcıoğlu, Yüksel (2017)In this study, we investigated the phytochemical composition, antioxidant, antimicrobial, and antigenotoxic properties of the aqueous extract of Dianthus carmelitarum for the first time. The phenolic and volatile compounds, ... -
Antioxidant, antimicrobial, cytotoxic, anticholinesterase, antityrosinase activities and characterisation of volatile vompounds of verbascum oocarpum by SPME and GC-FID/MS
Kanbolat, Şeyda; Korkmaz, Nuriye; Şener, Sıla O.; Badem, Merve; Çolak, Nevin Ulaş; Abudayyak, Mahmoud; Aliyazıcıoğlu, Rezzan; Özgen, Ufuk; Kandemir, Ali; Karaoğlu, Şengül Alpay (Sciencedomain Int, 2018)The objective of present study was to specify the antioxidant, antimicrobial, cytotoxic, anticholinesterase, and antityrosinase activities of Verbascum oocarpum Murb., together with its volatile components. the methanolic ... -
Biocidal properties of maltose reduced silver nanoparticles against American foulbrood diseases pathogens
Çulha, Mustafa; Kalay, Şaban; Sevim, Elif; Pınarbaş, Müberra; Baş, Yıldız; Akpınar, Rahşan; Karaoğlu, Şengül Alpay (Springer, 2017)Bee disease caused by spore-forming Paenibacillus larvae and Paenibacillus alvei is a serious problem for honey production. Thus, there is an ongoing effort to find an effective agent that shows broad biocidal activity ... -
Biological activity and characterization of volatile compounds of teucrium orientale var. Glabrescens by SPME and GC-FID/MS
Yıldırmış, Sermet; Aliyazıcıoğlu, Rezzan; Eyüpoğlu, Ozan Emre; Özgen, Ufuk; Karaoğlu, Şengül Alpay (Wiley, 2017)This study describes the constituents of phenolic acids, volatile components, antioxidant and antimicrobial activities of Teucrium orientale var. glabrescens. Antioxidant activity of methanolic and aquous extracts were ... -
Biological activity and phytochemical analysis of dicranum scoparium against the bacterial disease for honey bee
Karaoğlu, Şengül Alpay; Yaylı, Nurettin; Erik, İshak; Korkmaz, Büşra; Akpınar, Rahşan; Bozdeveci, Arif; Suyabatmaz, Şeyma; Batan, Nevzat; Yeşilyurt, Aydın; Kaya, Selma; Nisbet, Cevat; Güler, Ahmet (Wiley, 2022)Bacterial diseases, such as American Foulbrood (AFB) and European Foulbrood (EFB), are known to have catastrophic effects on honey bees (if left to spread, can wipe out entire colonies), leading to severe financial losses ... -
Biological activity, and volatile and phenolic compounds from five Lamiaceae species
Çelik, Gonca; Kılıç, Gözde; Kanbolat, Şeyda; Şener, Sıla Özlem; Karaköse, Mustafa; Yaylı, Nurettin; Karaoğlu, Şengül Alpay (Wiley, 2021)Lamiaceae, a family of flowering plants, have been historically used as culinary herbs, shrubs and medicinal plants. With this study, the volatile organic compounds (VOCs) of the five species of the Lamiaceae family (Thymus ...
