Kurum Yazarı "Azcan, Nezihe" Scopus İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Alkali catalyzed transesterification of cottonseed oil by microwave irradiation
Azcan, Nezihe; Danisman, Ayşegül (Elsevier Sci LTD, 2007)In this work microwave assisted transesterification of cottonseed oil was carried out in the presence of methanol and potassium hydroxide (KOH). Parametric studies were done to investigate the optimum conditions (catalyst ... -
Biodiesel production from castor oil by transesterification reaction and investigation of the fuel properties
Aygün, A.; Azcan, Nezihe; Erciyes, A. T. (2010)Biodiesel production from castor oil was performed by alcoholysis reaction with methyl alcohols. Among the alkali catalysts, KOH gave the best yield and conversion in microwave heated reaction. The optimum conditions for ... -
Energy consumption of biodiesel production from microalgae oil using homogeneous and heterogeneous catalyst
Azcan, Nezihe; Yılmaz, Özlem (Springer Verlag, 2014)Transesterification reaction of the new generating biofuel resource, microalgae was conducted. In order to evaluate the effects of reaction variables such as catalyst type (KOH, NaOH), catalyst amount (1-1.5 % w/w), ... -
Essential oil of Arischrada korolkowii from the Chatkal mountains of Uzbekistan
Başer, K. Hüsnü Can; Nuriddinov, HR; Özek, Temel; Demirci, Betül; Azcan, Nezihe; Nigmatullaev, AM (Consultants Bureau, 2002)The herbal parts of Arischrada korolkowii (Regel et Schmalh.) Pobed. (Lamiaceae) growing in Uzbekistan were hydrodistillated to yield 1.1% of essential oil. The essential oil was analyzed by GC/MS. Eighty eight compounds ... -
Extraction Parameters and Analysis of Apricot Kernel Oil
Azcan, Nezihe; Demirel, Elif (Asian Journal Of Chemistry, 2012)Apricot kernel is an alternative raw material for fixed oil, which is used in food, pharmaceutical and cosmetic industries. It can be utilized I in place of almond oil because of similarities in fatty acid compositions. ... -
Fatty acid composition of pistachio nuts in Turkey
Satıl, Fatih; Azcan, Nezihe; Başer, K. Hüsnü Can (Consultants Bureau, 2003)In this study oil yields and fatty acid compositions in the kernels of two varieties (Uzun and Siirt) of pistachio grown in different region of Turkey were investigated. Kernel oils were obtained by Soxhlet extraction using ... -
Fatty acid composition of seed oils of twelve Salvia species growing in Turkey
Azcan, Nezihe; Ertan, A; Demirci, Betül; Başer, K. Hüsnü Can (Kluwer Academic/Plenum Publishers, 2004)Seed oils of 12 Salvia species collected from different regions in Turkey (S. albimaculata Hedge & Hub. -Mor., S. candidisima Vahl., S. cedronellaBoiss., S. cryptanthaMontbret &Aucherex Bentham, S. forskahlei L., S. fruticosa ... -
Fatty acid composition of Sideritis species
Ertan, A; Azcan, Nezihe; Demirci, Betül; Başer, K. Hüsnü Can (Consultants Bureau, 2001)Seed oils of 15 Sideritis species collected from different regions in Turkey (S. athoa, S. brevidens, S. caesarea, S. condensata, S. congesta, S. dichotoma, S. erythrantha var. cedretorum, S. germanicopolitana ssp. ... -
Fatty acids of the seeds of Origanum onites L. and O-vulgare L.
Azcan, Nezihe; Kara, Mustafa; Demirci, Betül; Başer, K. Hüsnü Can (Springer Heidelberg, 2004)Seed oils of Origanum onites L. from the Antalya and Mugla regions and O. vulgare L. from the Kirklareli region of Turkey were extracted with hexane in a Soxhlet apparatus. The oil yields were 14.1-20.0 and 18.5%, respectively. ... -
Investigation of Turkish poppy seeds and seed oils
Azcan, Nezihe; Kalender, BO; Kara, Mustafa (Kluwer Academic/Plenum Publishers, 2004)The oil yields. fatty acid compositions, and total protein contents of three varieties of Turkish poppy were investigated. Solvent extraction of yellow seed gave the highest oil yield (49.2%). while white seed (36.8%) and ... -
Lipids and essential oil of Origanum onites
Azcan, Nezihe; Kara, Mustafa; Asilbekova, DT; Özek, Temel; Başer, K. Hüsnü Can (Consultants Bureau, 2000)Neutral lipids, glycolipids, phospholipids, pigments, and essential oil of the above-ground part of Origanum onites L. (Lamiaceae) are isolated and characterized for the first time. The fatty-acid composition of the lipids ... -
Lipids of Origanum tytthanthum
Asilbekova, DT; Glushenkova, AI; Azcan, Nezihe; Özek, Temel; Başer, K. Hüsnü Can (Consultants Bureau, 2000)The composition of lipids and fatty acids from the above-ground part of Origanum tytthanthum Gontsch. (Lamiaceae) is studied Lipids from the air-dried plant material are enriched in glycolipids, essential fatty, acids and ... -
Microwave assisted transesterification of rapeseed oil
Azcan, Nezihe; Danisman, Ayşegül (Elsevier Sci LTD, 2008)Rapeseed is one of the important vegetable oil sources for biodiesel production due to its high oil content (around 40%). In this study rapeseed oil was converted to biodiesel by transesterification using microwave heating. ... -
Microwave assisted transesterification of waste frying oil and concentrate methyl ester content of biodiesel by molecular distillation
Azcan, Nezihe; Yılmaz, Özlem (Elsevier Sci LTD, 2013)In this study, microwave assisted transesterification of waste frying oil was carried out in the presence of sodium methoxide (NaOCH3). Parametric studies were performed to investigate suitable reaction conditions such as ... -
Microwave irradiation application in biodiesel production from promising biodiesel feedstock: Microalgae (Chlorella protothecoides)
Azcan, Nezihe; Yılmaz, Özlem (Newswood Limited, 2012)Microwave irradiation effect on transesterification reaction of the new generation biofuel resource, microalgae, was studied. Experiments were conducted in order to evaluate the effects of reaction variables such as catalyst ... -
Obtaining 2-octanol, 2-octanone, and sebacic acid from castor oil by microwave-induced alkali fusion
Azcan, Nezihe; Demirel, Elif (American Chemical Society, 2008)In this study, the effect of microwave irradiation on alkali fusion of castor oil was investigated using different NaOH/oil ratios (8:15, 12:15, and 14:15), reaction temperatures (473, 493, 503, 513, and 523 K), and reaction ... -
The production of essential oil from cumin seeds
Steam distillation of cumin {Cuminum cyminum L.) seeds was studieds to show the effects of particle size, batch size, and distillation rate on Uieir essential oil recovery. Experiments were carried out both on bench and ... -
Production of essential oil from cumin seeds
Beis, Sedat Hakkı; Azcan, Nezihe; Özek, Temel; Kara, Mustafa; Başer, K. Hüsnü Can (Consultants Bureau, 2000)Steam distillation of cumin (Cuminum cyminum L.) seeds was studied to show the effects of particle size, batch size, and distillation rate on their essential oil recovery. Experiments were carried out both on bench and ... -
Seed oils of fifteen Ebenus taxa growing in Turkey
Azcan, Nezihe; Sarıcoban, S; Demirci, Betül; Aytaç, Zeki; Başer, K. Hüsnü Can (Consultants Bureau, 2001)Oil yields and compositions from seeds of 15 Ebenus taxa growing in Turkey were investigated. The yields were found between 4.0% and 13.0%. The seeds of E. barbigera showed the highest while E. plumosa var. plumosa showed ... -
Thermodynamic Modeling of Water-Gas Shift Reaction in Supercritical Water
Demirel, Etli Pınar; Azcan, Nezihe (Int Assoc Engineers-Iaeng, 2012)Water gas shift reaction (WGSR) is one of the fundamental reactions which occurs during supercritical water gasification. A stoichiometric thermodynamic model is developed to estimate equilibrium composition of WGSR with ...