Browsing by Author "Dogan, Adnan"

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Analysis of Fatty Acid Profiles of Pistachios (Pistacia Vera L.) and Native Walnuts (Juglans Regia L.) From Turkey
(Asian Journal of Chemistry, 2010) Dogan, Adnan; Celik, Ferit; Balta, Fikri; Javidipour, I.; Yavic, Adnan
This work identities fatty acid compositions of 7 pistachio varieties (Pistacia vera L.) from G. Antep and Siirt (southeastern Turkey) and 9. walnut (Juglans regia L.) genotypes from Denizli (western Turkey). Pistachio varieties contained 57.77% oil, 8.73% palmitic acid, 0.81 palmitoleic acid, 2.26% stearic acid. 71.90% oleic acid, 14.91% linoleic acid, 0.88% linolenic acid, 0.08% myristic acid, 0.11% arachidic acid and 0.21% gadoleic acid, respectively. Walnut genotypes contained 65.57% oil, 5.80% palmitic acid, 0.16 palmitoleic acid, 2.65% stearic acid, 59.85% oleic acid, 14.20% linoleic acid. 0.88% linolenic acid, 0.08% myristic acid, 0.11% arachidic acid and 0.21% gadoleic acid, respectively. The mean ratio of unsaturated fatty, acids and saturated fatty acids was 8.02 for pistachio varieties and 11.0 for walnut genotypes.
Analysis of Oil Composition of Native Almonds From Turkey
(Asian Journal of Chemistry, 2010) Celik, Ferit; Balta, M. Fikret; Javidipour, I.; Dogan, Adnan
Native almond genotypes contained 43.5-62.4% oil, 5.61-16.48% palmitic acid. 0.32-0.69% palmitoleic acid, 1.23-3.89% stearic acid, 68.99-81.71% oleic acid, 7.70-21.65% linoleic acid, 0.08-0.21% linolenic acid and 0.22-0.91% myristic acid. In addition. they had 78.74-92.97% unsaturated fatty acid content, 7.03-21.28% saturated fatty acid content and 3.7-13.2 unsaturated fatty acid/saturated fatty acid ratio.
Biochemical Changes in Some Table Grape Cultivars Throughout the Ripening Process
(Univ Life Sciences Lublin, 2022) Dogan, Adnan; Uyak, Cuneyt
This study was conducted to investigate the biochemical changes observed throughout the ripening process from veraison to harvest periods of 13 table grape cultivars of Vitis vinifera L. species. Present findings revealed that total acidity, total phenolics and total antioxidant capacity of the grape cultivars decreased and water soluble dry matter (WSDM) content, must pH and total anthocyanins increased throughout the ripening process. In harvest period, water soluble dry matter (WSDM) contents varied between 17.0% (Trakya Ilkeren and Silfoni cultivars) and 21.6% (Kureys cultivar); total acidity values varied between 0.42 g l(-1) (Tekirdag Seedless cultivar) and 1.26 g l(-1) (Kizilatim cultivar); must pH values varied between 2.58 (Kohnu cultivar) and 3.29 (Trakya Ilkeren cultivar); ripening index values varied between 15.60 (Silfoni cultivar) and 41.90 (Tekirdag Seedless cultivar); total phenolics varied between 723.5 mu g GAE g(-1) (Mazirim cultivar) and 2657 mu g GAE g(-1) (Banazi Karasi cultivar); total antioxidant capacities varied between 4.27 mu mol TE g(-1) (Mazirim cultivar) and 8.21 mu mol TE g(-1) (Kohnu cultivar); total anthocyanins varied between 32.3 malvidin-3-o-glikozit mu g g(-1) (Kizilatim cultivar) and 205.2 malvidin-3-o-glikozit mu g g(-1) (Banazi Karasi cultivar). Berry skin colors strongly correlated with total phenolics (R-2 = 0.9376) and total antioxidant capacity (R-2 = 0.8296).
Biochemical Characterization of Mulberry (Morus Spp.) Genotypes From the Turkiye (Hizan, Bitlis): a Comprehensive Analysis of Fruit Properties and Bioactive Compounds
(Wiley, 2024) Uyak, Cuneyt; Aglar, Erdal; Ozturk, Burhan; Dogan, Adnan; Tekin, Onur
The present study was carried out to assess the fruit traits and phytochemical properties of 39 mulberry genotypes [Morus alba L. (16 white mulberry), Morus rubra L. (11 red mulberry), and Morus nigra L. (12 black mulberry)] selected in Bitlis province (Hizan) of Turkiye. Approximately, 1 kg fruit were hand-harvested from each genotype. The fruit size, fruit color, pH, titratable acidity, soluble solids content (SSC), vitamin C, total phenolics, total flavonoids, antioxidant activity, and individual phenolic compounds were determined. The fruit weight varied between 1.80 and 5.84 g in black mulberry, 1.22 and 4.18 g in red mulberry, and 1.29 and 3.10 g in white mulberry. In white mulberry, SSC was determined to be between 19.00% and 38.86%, and in black and red mulberry it was between 11.86% and 21.90% and 12.60% and 18.90%, respectively. The titratable acidity rate, which varied depending on the species, was lower in white mulberry, but the highest acidity rate was recorded in red mulberry. Vitamin C was determined as 33.13 mg 100 g(-1) in red mulberry, 24.10 mg 100 g(-1) in black mulberry, and 14.03 mg 100 g(-1) in white mulberry. Total phenolics in mulberries varied depending on the species, and the red mulberry fruit contained higher phenolic substances, followed by black and white mulberries. The total flavonoids varied between 0.27 and 7.83 g QE kg(-1), whereas the flavonoids varied depending on the species and genotype. The highest values in terms of bioactive compounds were recorded in fruits of the 13HZN23 and 37 genotypes. Black and red mulberry fruit were found to have higher levels of individual phenolic content than the white mulberrry fruit.
A Case of Idiopathic Ventricular Tachycardia Developed in a 14-Year Obese Patient Who Used Golden Berry Fruit Extract Pills for Weight Loss
(Turkish Soc Cardiology, 2013) Simsek, Hakki; Dogan, Adnan; Sahin, Musa; Gumrukcuoglu, Hasan Ali
Several studies have determined an association between obesity and increased risk of cardiac arrhythmia. Currently, due to the increased frequency of obesity, food-, plant-, and drug-based therapies for weight loss have gained great attention. A 14-year-old female patient presented with complaints of palpitation of one-hour onset. Blood pressure was 110/ 70 mmHg and peripheral pulses were present. She had been using golden berry extract pills three times a day for 10 days. Electrocardiograms showed nonsustained monomorphic ventricular tachycardia (VT). Echocardiographic examination and cardiac magnetic resonance imaging (MRI) were normal. She returned to sinus rhythm following amiodarone infusion. She refused electrophysiologic study, which plays a vital role in the diagnosis and establishment of the appropriate therapy. Although there was no decrease in body mass index (BMI) of the patient during the two-year follow-up, and she had no complaint or evidence of VT on intermittent rhythm, we have thought that VT might be stem from golden berry extract use, rather than obesity.
Determination of Fatty Acids, Tocopherols, Selenium and Total Carotene of Walnut Genotypes and Evaluations by Cluster, Pca and Correlation Analysis
(Springer, 2023) Acar, Songul; Kazankaya, Ahmet; Dogan, Adnan
Plant genetic diversity creates unique and unrivaled resources for future climate change scenarios. Knowledge of these genetic resources and their sustainable management are essential for the development of conservation strategies. Selection studies are also the basis of these investigation. In this study, 27 selected walnut genotypes grown in the Batman region of Southeastern Anatolia were assessed for fatty acid composition, total carotene content, selenium, as well as their tocopherol content. The total fat varied between 53.25 and 68.70%. The fatty acid content was found to be 38.86-64.37% for linoleic acid, 16.27-38.20% for oleic acid, 9.58-19.38% for linolenic acid, 4.09-6.55% for palmitic acid and 1.78-4.05% stearic acid. The amount of alpha-tocopherol, gamma-tocopherol and delta-tocopherol were found to be 2.25-6.32 mg kg(-1), 38.20-136.27 mg kg(-1) and 1.65-6.21 mg kg(-1), respectively, and total tocopherol content was 89.85 mg kg(-1). Selenium contents of genotypes were between 12.28 and 65.32 mg g(-1). The genotypes were found to have 0.19-0.56 mg kg(-1) total carotene. Cluster and PCA analyses were performed and two major clusters were identified. Compared to cluster A, 72-K-11, 72-K-129, 72-S-48 and 72-K-92 genotypes in cluster B generally had the highest kernel ratio (52.609%), oleic acid (30.26%), linoleic acid (55.02%), linolenic acid (18.14%), gamma-tocopherol (122.31 mg kg(-1)), delta-tocopherol (4.45 mg kg(-1)) and selenium (50.25 mg g(-1)). The present results emphasize that the walnut genotypes selected from the Southeastern Anatolia Region can make an important contribution to human nutrition with their rich fatty acids, tocopherols and selenium contents.
Determination of Phenolic Compound and Organic Acid Contens of Some Grape Varieties Grown in Hizan (Bidis) Province
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2020) Uyak, Cuneyt; Dogan, Adnan; Sensoy, Ruhan Ilknur Gazioglu; Keskin, Nurhan; Cavusoglu, Seyda; Cakmakci, Ozlem; Kunter, Birhan
Aim of this study was to determine phenolic compound and organic acid contents of 17 local grape varieties grown in Hizan (Bitlis) province of Turkey. Organic acid and phenolic compound amounts were determined via HPLC (High Performance Liquid Chromatography). Organic acids amount of grape varieties ranged from 1362.06 mu g g(-1) (Sapi Beyaz) to 4269.90 mu g g(-1) (Husni Beyaz) fortartaric acid and from1072.70 mu g g(-1) (Alaki) to 2858.69 mu g g(-1) (Kus Uzumu) for malic acid. Phenolic compound amounts of grape varieties ranged from 4.718 mu g g(-1) (Husni Beyaz) to 33.177 mu g g(-1) (Sapi Yesil) for gallic acid, from 6.293 mu g g(-1) (Beyaz Bineteti) to 20.201 mu g g(-1 )(Alaki) for vanilic acid, from 0.174 mu g g(-1 )(Beyaz Bineteti) to 2.830 mu g g(-1) (Alaki).for rutin, from 0.193 mu g g(-1) (Beyaz Bineteti) to 1.395 mu g g(-1 )(Kus uzumu) for protocatechuic acid, from 0.509 mu g g(-1) (Husni Beyaz) to 12.036 mu g g(-1) (Beyaz Guzane) for clorogenic acid, from 0.050 mu g g(-1 )(Siyah Guzane) to 0.485 mu g g(-1) (Husni Beyaz) for syringic acid, from 0.043 mu g g(-1) (Alaki) to 0.211 mu g g(-1) (Kirmizi Tayfi) for p-coumaric acid, from 0.041 mu g g(-1) (Beyaz Sinciri) to 1.238 mu g g(-1) (Siyah Guzane) for ferulic acid, from 0.023 mu g g(-1) (Beyaz Sinciri) to 1.083 mu g g(-1) (Kus Uzumu) for o(-)coumaric acid from 0.209 mu g g(-1) (Siyah Guzane) to 2.360 mu g g(-1) (Inek Memesi) for resveratrol, from 0.086 mu g g(-1) (Beyaz Sinciri) to 1.228 mu g g(-1) (Alaki) for florodiz.
Development of a Spatial Decision Support System (Sdss) for Grape Cultivation by Using a Geographical Information System (Gis): Çatak (Turkey) Example
(Springer, 2024) Guzel, Deniz Ugur; Dogan, Adnan; Uyak, Cuneyt
This study aims to develop a spatial decision support system (SDSS) by evaluating climate, soil, and topography factors together with the help of a Geographical Information System (GIS) and by using this modelled SDSS to determine the potentially suitable areas where grape varieties with different ripening levels within the study area (& Ccedil;atak, Turkey) can be grown. The study was carried out in the & Ccedil;atak district, located in the south of Lake Van, between 4080000 and 4240000 north latitudes and 300000 and 370000 east longitudes (UTM WGS84) in eastern Turkey in 2021-2022. In the study, some important individual factors for vine growing such as the effect of heat summation (EHS), number of frost-free days, minimum winter temperature, aspect, slope, soil depth, and land use capability were evaluated using the GIS and weighted notation ratio result method, and based on this, a suitability analysis was carried out. It was determined that the distributions of the study area for first, second, and third suitability levels, respectively, were 0.72-26.05-52.50% for the earliest variety, 4.58-33.84-48.28% for the early variety, 1.15-22.56-58.47% for the mid-early varieties, 3.95-20.52-49.07% for the mid-season varieties, and 1.18-13.20-44.61% for the late variety. It was seen that the variables and the modelling used were effective in determining suitable areas for grape cultivation.
Distribution of Fatty Acids in a Seedling Almond Population and Their Mutual Relationships
(Asian Journal of Chemistry, 2010) Celik, Ferit; Balta, Fikri; Dogan, Adnan; Javidipour, I.; Kazankaya, Ahmet
This paper deals with determining kernel fatty acid contents based on oil distribution in a seedling almond population consist of 90 seedling trees from Turkey and mutual relationships among fatty acids. Almond Population was divided into three groups based on the range of fat contents. Genotypes averagely contained 6.70% palmitic acid, 0-0% palrytitolcic acid, 1.78% stearic acid, 72.83% oleic acid, 18.03% linoleic acid, 0.15% linolenic acid and 0.39% myristic acid. In addition, they had 91.58% unsaturated fatty acid content, 8.87% saturated fatty acid content and 10.32 unsaturated/saturated ratio. Findings of this study indicate that contents of oleic and linoleic acids were influenced by the range of oil in the seedling population.
Grapevine Leaf Area Measurements by Using Pixel Values
(Publ House Bulgarian Acad Sci, 2018) Dogan, Adnan; Uyak, Cuneyt; Keskin, Nurhan; Akcay, Anil; Sensoy, Ruhan Ilknur Gazioglu; Ercisli, Sezai
Determination of the leaf area has great importance in terms of plant development due to giving significant information about photosynthetic capacity of the plants. Leaf area measurements also reveal significant information about growth potential. Nowadays it can be done in laboratory and with portable expensive devices. The primary objective of the present study is to determine leaf areas in computer environment without a need for a special device and functional program only over the image pixel values and to put forth the availability of such method in leaf area measurements. In this study, real leaf areas of local grape varieties grown in Hizan (Bitlis) region were determined by using image processing technique of Photoshop CS6, pixel values and pixel-area relation. The accuracy of the measurement was determined as between 99.96-100.00%. It was concluded that Photoshop CS6 software was sufficient for leaf area measurements.
Nitrate and Nitrite Levels of Some Fruit Species Grown in Van, Turkey
(Asian Journal of Chemistry, 2008) Dogan, Adnan; Kazankaya, Ahmet; Balta, Mehmet Fikret; Celik, Ferit
The levels of nitrates and nitrites were evaluated in some fruits including apple, apricot, peach, nectarine, pear, grape and sour cherry. For investigation, the fruits were collected from July to October based on their harvest seasons and analyzed using cadmium acetate column. The levels of nitrates and nitrites were expressed in mg/kg as wet-basis. Apple, pear, peach and nectarine and grape fruits contained in fresh matter, 3.01-24.36, 0.00-12.09, 0.00-56.39, 0.54-45.02, 0.00-1.92, 0.00-80.90 mg NO3/kg, respectively. The levels of nitrites were 0.00-0.198, 0.00-0.123, 0.00-0.231, 0.00-0.096, 6.00-0.064, 0.00-0.261 mg NO2/kg for the fruits of apple, sour cherry, apricot, peach and nectarine and grape, respectively. The levels of nitrates and nitrites of the fruits delivered to street market from the other regions were 24,30-92.80 and 0.284-1.741 mg/kg that were lower than that of the fruits grown in the district of Van. The levels of nitrates and nitrites of all fruits were under the harmful levels to human health.
A Novel Echocardiographic Method for the Detection of Subclinical Atherosclerosis in Newly Diagnosed, Untreated Type 2 Diabetes
(Wiley, 2013) Simsek, Hakki; Sahin, Musa; Gunes, Yilmaz; Dogan, Adnan; Gumrukcuoglu, Hasan Ali; Tuncer, Mustafa
Background: Diabetes accelerates the natural process of atherosclerosis and is a predictor for progression of atherosclerotic lesions. To improve clinical outcomes, noninvasive imaging modalities have been proposed to measure and monitor atherosclerosis. Recently, it has been shown that the color M-mode-derived propagation velocity of the descending thoracic aorta (aortic velocity propagation [AVP]) was associated with coronary and carotid atherosclerosis. Methods: Carotid intima-media thickness (CIMT) and AVP were measured in 72 patients with newly diagnosed type 2 diabetes and 44 healthy people. Individuals who had previously used oral hypoglycemic agents or insulin treatment or had a history of hyperlipidemia, cigarette smoking, hypertension, and cardiovascular disease were excluded from this study. Results: Compared with control group, patients with type 2 diabetes had significantly lower AVP (39.9 +/- 6.5 vs. 58.4 +/- 6.7 cm/sec, P < 0.001) and higher CIMT (1.1 +/- 0.1 vs. 0.95 +/- 0.12 mm, P < 0.001) measurements. There were significant correlations between AVP and CIMT (r = -0.835, P < 0.001), AVP and fasting plasma glucose (r = -0.796, P < 0.001)), AVP and HbA1 c (r = -0918 P < 0.001). Conclusions: Diabetes mellitus may be associated with subclinical atherosclerosis assessed by measurement of AVP and CIMT. These simple methods might improve patient selection for primary prevention atherosclerotic progression.
Relationships Between Physical and Chemical Properties With Stoma Properties in Some Local Grape Varieties (Vitis Vinifera L.)
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2022) Arslan, Tuncer; Dogan, Adnan; Uyak, Cuneyt; Guzel, Deniz Ugur
The aim of this study was to determine the stoma densities and sizes of 12 local grape varieties grown in Yuksekova (Hakkari) province, as well as to determine the relationships between stomatal properties with physical and chemical properties. In order to determine stoma properties, leaf samples were taken from 4-5 th nodes of the summer shoots of each variety and stoma densities and sizes were determined by nail polish method from different parts of the leaf surface (bottom, middle, tip). It was determined that stoma densities were between 166.13-247.12 pcs mm(2), stoma lengths were between 22.63-27.88 mu m, and stoma widths were between 14.59-19.00 mu m. A significant positive correlation was found between stoma density with leaf size and cluster weight, and a significant negative correlation was found between stoma density with soluble solids content in grapes.