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Dive into the research topics where Hasan Özçelik is active.

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Featured researches published by Hasan Özçelik.


Economic Botany | 2004

Ethnobotanical Aspects of Some Taxa in East Anatolia, Turkey

Fevzi Özgökçe; Hasan Özçelik

This paper presents a list of some medicinal plants distributed in the East Anatolia region. The list was prepared during an ethnobotanical survey of the region from 1995 to 2002. East Anatolia has a rich flora due to its variable climate and its many ecological zones. This diversity in flora provides a rich source of medicinal plants that has been long utilized by Anatolian cultures; and hence, accounts for the remarkable accumulation of medicinal folk knowledge for the region. This paper provides information about 71 useful plants grown in the region, 20 of which are reported for the first time. In addition to the scientific names, vernacular names and medicinal uses are given for each plant.Abstract1995-2002 yillan arasi Doğu Anadolu Bölgesinde gerçekle§tirilen etnobotanik taramalar sonucu, bölgede yayili§ gösteren bazi tibbi bitkiler bu çah§mada liste halinde verilmi§tir. Deği§ik ekolojik durumlar, farkh iklimsel tipler ve vejetasyon geçmi§inden dolayi Doğu Anadolu Bölgesi zengin bir floraya sahiptir. Farkh kültürlere ve zengin floraya sahip bölgede Halk hekimliği ile ilgili veriler çok fazladir. Bundan dolayi Anadolu tibbi bitkilerin kullanimi bakimindan önemli bir merkez olmu§tur. Bu ara§tirmada bölgede yeti§en deği§ik amaçlarla kullamlan 71 faydah bitki hakkmda bilgi verilmektedir. Kaydedilen verilerden 20∝i ilk kez sunulmaktadir. Çali§mayi olu§turan bitkilerin tümü ara§tirma bölgesinden toplanip te§his edilmi§, yöresel isimleri ve tibbi kullammlan verilmektedir.


Phytochemistry | 1999

Diterpenoid and norditerpenoid alkaloids from Delphinium carduchorum

A. H. Mericli; F. Mericli; Emine Doğru; Hasan Özçelik; Atta-ur-Rahman; Ayhan Ulubelen

From the aerial parts of Delphinium carduchorum, we have isolated three known norditerpenoid alkaloids (delcaroline, deltatsine, 18-hydroxy-14-O-methyl-gadesine) and two new diterpenoid alkaloids, carduchoron and delcarduchol. The structures of the newly isolated alkaloids were established from spectroscopic data.


Pharmaceutical Biology | 2006

Alkaloids from Consolida olopetala

Leyla Bitis; Sevda Süzgeç; F. Mericli; Hasan Özçelik; Josef Zapp; Hans Becker; A. H. Mericli

Abstract Three norditerpenoid alkaloids, delphatine (1), delcaroline (2), and browniine (3), and three diterpenoid alkaloids, hetisine (4), dehydronapelline (5), and 12-epidehydronapelline (6), have been isolated and identified from the aerial parts of Consolida olopetala. (Boiss.) Hayek (Ranunculaceae).


Chemistry of Natural Compounds | 2006

Diterpenoid alkaloids of Delphinium schmalhausenii

Sevda Süzgeç; Leyla Bitis; Sevda Pırıldar; Hasan Özçelik; Josef Zapp; Hans Becker; F. Mericli; A. H. Mericli

From the aerial parts of Delphinium schmalhausenii six norditerpenoid alkaloids gigactonine, lycoctonine, anthranoyllycoctonine, delsemine A, delsemine B, N-acetyldelectine and a diterpenoid alkaloid septatisine were isolated.


Natural Product Research | 2014

Essential oil composition of Cymbocarpum erythraeum (DC.) Boiss. from Turkey.

Ayşe Betül Avci; Mustafa Korkmaz; Hasan Özçelik

The aim of this study was to determine the essential oil content and composition of Cymbocarpum erythraeum (DC.) Boiss., a rare species spread in flora of Turkey. The samples were collected during the fructifying period of the plant from Erzincan, Turkey, at an altitude of 2430 m, in 2010. Essential oils were obtained from different parts of the plant such as fruits and herbal parts with Clevenger apparatus by hydro-distillation. Essential oil contents of the plant material were 0.38 ± 0.015%, 0.23 ± 0.012% and 0.21 ± 0.015% from fruits, herbal parts with fruits and herbal parts without fruits, respectively. Composition of essential oil was identified by gas chromatography–mass spectrometry. The essential oil of the herbal parts of the plant was dominated by fatty alcohols and aldehydes which accounted for 73.10% and 24.64%, respectively. Myristyl alcohol (1-tetradecanol) was identified as a major component of essential oil with an average content of 73.10%.


Chemistry of Natural Compounds | 2009

Alkaloids from the aerial parts of Consolida anthoroidea and Delphinium linearilobum

Sevda Süzgeç; Leyla Bitis; Ulaş Sözer; Hasan Özçelik; Josef Zapp; Alexandra K. Kiemer; F. Mericli; A. H. Mericli

1) Istanbul University, Faculty of Pharmacy, Department of Pharmacognosy, 34116 Beyazyt-Istanbul-Turkey, e-mail: [email protected]; [email protected]; 2) Marmara University, Faculty of Pharmacy, Department of Pharmacognosy, 34668 Haydarpasa-Istanbul-Turkey; 3) Suleyman Demirel University, Faculty of Science and Literature, Department of Botany, Isparta-Turkey; 4) Saarland University, Institute of Pharmaceutic l Biology, P.O.151150, 66041 Saarbrucken-Germany. Published in Khimiya Prirodnykh Soedinenii, No. 2, pp. 242–243, March–April, 2009. Original article submitted September 21, 2007.


Archive | 2002

Fatty Acid Composition of Aconitum orientale Miller and A. nasutum Fisch. ex Reichb Seeds, A Chemotaxonomic Approach

Eyup Bagci; Hasan Özçelik

Aconitum L. genus (Ranunculaceae) is represented with 3 species in Flora of Turkey1. They are Aconitum orientale Miller, Aconitum nasutum Fisch. ex Reichb. and A. cochleare Woroschin. In recent years, there are new addition to this number2. Genus Aconitum have been also represented in the Delphinideae Tribus with the Consolida and Delphinium genus, according to Tahtajan3, Tamura4 and Jensen & al5. Davis1, reported that Aconitum L. is a very critical genus and has extremely toxic plants, many of whose species show more variability than they are often credited with. Utelli et al6, reported that the systematics of the yellow – flowered Aconitum lycoctonum species complex (Ranunculaceae) growing in Europa has long been considered difficult because of high morphological variability and hypothesized hybridization.


Chemistry of Natural Compounds | 2007

NORDITERPENOID ALKALOIDS FROM Delphinium cinereum

A. H. Mericli; M. Ulusoylu Dumlu; F. Mericli; Hasan Özçelik; Josef Zapp; Hans Becker

[email protected]; 2) Marmara University, Faculty of Pharmacy, Department of Pharmacognosy, 34668 HaydarpasaIstanbul-Turkey; 3) Suleyman Demirel University, Faculty of Science and Literature, Department of Botany, Isparta-Turkey; 4) Saarland University, Institute of Pharmacognosy and Analytical Phytochemistry, P.O.151150, 6604 Saarbrucken-Germany. Published in Khimiya Prirodnykh Soedinenii, No. 3, pp. 301-302, May-June, 2007. Original article submitted February 14, 2006.


Phytochemistry | 1999

Norditerpene and diterpene alkaloids from Consolidahohenackeri

Ayhan Ulubelen; A. H. Mericli; F. Mericli; Hasan Özçelik; Bilge Şener; Hans Becker; Josef Zapp; Iqbal M. Choudhary; Atta-ur-Rahman

Abstract Four diterpenoid alkaloids, two of them being the known compounds lycoctonineand ajaconine, were isolated from the aerial parts of Consolida hohenackeri. The two newcompounds were C19 alkaloids, hoheconsoline and consolinine. The structures of the compoundswere elucidated by 1-D and 2-D NMR techniques.


Chemistry of Natural Compounds | 2012

Norditerpenoid alkaloids from Consolida thirkeana and Consolida sulphurea

A. H. Mericli; Secil Yazici; Esra Eroglu-Ozkan; Burcu Sen; Sezin Kurtoglu; Hasan Özçelik; Josef Zapp; Alexandra K. Kiemer; F. Mericli

0009-3130/12/4803-0525 2012 Springer Science+Business Media, Inc. 1) Istanbul University, Faculty of Pharmacy, Department of Pharmacognosy, 34116 Beyazit, Istanbul, Turkey, e-mail: [email protected]; 2) Suleyman Demirel University, Faculty of Science and Literature, Department of Botany, Isparta, Turkey; 3) Saarland University, Institute of Pharmaceutical Biology, P. O. 151150, 66041, Saarbrucken, Germany. Published in Khimiya Prirodnykh Soedinenii, No. 3, May–June, 2012, p. 471. Original article submitted January 24, 2011. Chemistry of Natural Compounds, Vol. 48, No. 3, July, 2012 [Russian original No. 3, May–June, 2012]

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Fevzi Özgökçe

Yüzüncü Yıl University

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Semra Kilic

Süleyman Demirel University

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