Yazar "Cirak, Cuneyt" için Meslek Yüksekokulları listeleme
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Chemical composition of Hypericum species from the Taeniocarpium and Drosanthe sections
Camas, Necdet; Radusiene, Jolita; Ivanauskas, Liudas; Jakstas, Valdas; Kayikci, Samim; Cirak, Cuneyt (Springer Wien, 2014)The presence of several phytochemicals, namely naphthodianthrones hypericin and pseudohypericin, phloroglucinol derivatives hyperforin and adhyperforin, the phenolic acids as chlorogenic acid, neochlorogenic acid, caffeic ... -
Factors affecting the variation of bioactive compounds in Hypericum species
Cirak, Cuneyt; Radusiene, Jolita (Akademiai Kiado Zrt, 2019)The genus Hypericum (Hypericaceae) consists of 484 species from 36 sections with worldwide distribution in different areas. Turkey is considered as hot spot for diversity of Hypericum genus. Despite numerous publications, ... -
Hypericin and pseudohypericin contents in some Hypericum species growing in Turkey
Ayan, Ali Kemal; Cirak, Cuneyt (Taylor & Francis Ltd, 2008)Hypericin and pseudohypericin content in stems, leaves, and flowers of some Hypericum species growing in Turkey, namely, H. heterophyllum Vent, H. hyssopifolium L., H. linarioides Bosse, H. monbretii Spach, H. orientale ... -
Hypericin in Hypericum lydium Boiss. growing in Turkey
Cirak, Cuneyt (Pergamon-Elsevier Science Ltd, 2006)… -
Hypericum origanifolium Willd.: the essential oil composition of a new valuable species
Bertoli, Alessandra; Cirak, Cuneyt; Seyis, Fatih (Elsevier, 2015)Turkish Hypericum origanifolium Willd has been recently considered for its hypericin and phenolic content as a potential substitute of the well-established EU market position Hypericum perforatum. However, a complete ... -
The modeling of the relation among the temperature and light intensity of growth in Ocimum basilicum L.
Caliskan, Omer; Odabas, Mehmet Serhat; Cirak, Cuneyt (Academic Journals, 2009)Changes in plant growth caused by the effects of environmental conditions such as temperature and light intensity were intended to be described by plant growth models. The study was aimed to define the relationships between ... -
Phenological changes in the chemical content of wild and greenhouse-grown Hypericum pruinatum: flavonoids
Cirak, Cuneyt; Radusiene, Jolita; Ivanauskas, Liudas; Jakstas, Valdas; Camas, Necdet (Tubitak Scientific & Technical Research Council Turkey, 2014)The present study was conducted to determine the phenological changes in the content of main flavonoids, namely amentoflavone, hyperoside, isoquercitrin, quercitrin, quercetin, avicularin, rutin, (+)-catechin, and ... -
The quantitative effect of temperature and light intensity at growth in Origanum onites L.
Caliskan, Omer; Odabas, Mehmet Serhat; Cirak, Cuneyt; Radusiene, Jolita; Odabas, Ferhat (Academic Journals, 2010)The study was aimed to define the relationships between temperature, light intensity and growth parameters. Namely, net assimilation rate, relative growth rate, leaf weight ratio, leaf area ratio and specific leaf area for ... -
Secondary Metabolites of Hypericum leptophyllum Hochst., an Endemic Turkish Species
Camas, Necdet; Radusiene, Jolita; Stanius, Zydrunas; Caliskan, Omer; Cirak, Cuneyt (Hindawi Ltd, 2012)In the present study, the presence of the phloroglucinol derivative hyperforin, the naphthodianthrones hypericin and pseudohypericin, the phenylpropane chlorogenic acid and the flavonoids rutin, hyperoside, kaempferol, ... -
Variation of bioactive substances in Hypericum montbretii during plant growth
Cirak, Cuneyt; Radusiene, Jolita; Arslan, Burhan (Taylor & Francis Ltd, 2008)The present study was conducted to determine phenologic and morphogenetic variation of chlorogenic acid and flavonoids, as rutin, hyperoside, apigenin-7-O-glucoside, quercitrin, quercetin and viteksin content of Hypericum ... -
Variation of hypericins in Hypericum triquetrifolium Turra growing in different locations of Turkey during plant growth
Ayan, Ali Kemal; Cirak, Cuneyt (Taylor & Francis Ltd, 2008)The principle medicinal secondary metabolites present in Hypericum species are thought to be naphthodianthrones hypericin and pseudohypericin. The present study was conducted to determine ontogenetic and morphogenetic ... -
Variations in total phenolics during ontogenetic, morphogenetic, and diurnal cycles in Hypericum species from Turkey
Ayan, Ali Kemal; Cirak, Cuneyt; Yanar, Oguzhan (Springer Heidelberg, 2006)Several species of Hypericum are used in traditional Turkish folk medicine. Their most medicinally important secondary metabolites are the hypericins, hyperforins, and phenolics. Here, we determined the ontogenetic, ...