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Öğe AC-2306327-0000001 Heavy Metals, Trace Elements and Biochemical Composition of Different Honey Produce in Turkey(Asian Journal Of Chemistry, 2009) Sahinler, Nuray; Gul, Azlz; Akyol, Ethem; Oksuz, AbdullahIn this work, the biochemical composition, trace elements and heavy metal contents of honey samples, which were collected from different regions and different botanical origin in Turkey were evaluated. The average content of minerals, moisture, acidity, hydroxymethylfurfural, diastase, invert sugar, pH, sucrose, electrical conductivity and heavy metal contents were determined, The biochemical composition of different botanical originated honeys were determined within the limits of Turkish Standard Institution (TSE), CODEX and EU standards. Level of invert sugar in cotton honey and sucrose level in sunflower honey weren't found agree with TSE and EU standards. In addition to biochemical compositions, the presence of Al, Ba, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb and Zn were determined agree with ICP AES, The highest value of Cr, Cu, K, Mn, Na and Al, contents were found in pine honeydew honey with a levels of 0.50, 2.14, 1931, 1.46, 285, 7.49 mg kg(-1), respectively. The highest level of Cd, Co, Mg, Ni and Pb (0.32, 0.22, 103, 0.64, 1.29 mg kg) were found in cotton honey. The highest level of Ba and Zn were determined in multifloral honey with a level of 1.47 ppm and 3.29 ppm, respectively. K, Na and Mg were the major macro elements in all honey samples. This study showed that the source of nectar and ecological regions have an important effect on the biochemical compositions, trace elements and heavy metals contents of honey.Öğe A Comparative Study on Proximate, Mineral and Fatty Acid Compositons of Deep Seawater Rose Shrimp (Parapenaeus longirostris, Lucas 1846) and golden Shrimp (Plesionika martia, A. Milne-Edwards, 1883)(Medwell Online, 2009) Oksuz, Abdullah; Ozyilmaz, Ayse; Aktas, Mevlut; Gercek, Gozde; Motte, JelenaProximate, Fatty Acids (FA) and element compositions of two shrimp species, deep seawater rose-shrimp (Parapenaeus longirostris) and golden shrimp (Plesionika martia), were determined. Amount of lipid in P. longirostris and P. martia was found as 1.1 and 2.61%. Proportion of lipid in both shrimps was lower than that of marine fish. Surprisingly, FA profile of these 2 shrimp species can be comparable with that of marine fish. The amounts of PUFA's in both shrimp species were found higher than those of SFA and MUFA. Level of DHA in P. longirostris was significantly (p<0.05) higher than that of P. martia. In addition, major macro elements found in both of the shrimp species were Ca, K, Na, P and Mg. Zinc and iron were the major micro elements followed by Cu and Mn. Heavy metals such as, Cd and Cr, were in below the safe limits.Öğe A comparative study on proximate, mineral and fatty acid compositons of deep seawater rose shrimp (Parapenaeus longirostris, Lucas 1846) and red shrimp (Plesionika martia, A. Milne-Edwards, 1883)(2009) Oksuz, Abdullah; Ozyilmaz, Ayse; Aktas, Mevlut; Gercek, Gozde; Motte, JelenaProximate, Fatty Acids (FA) and element compositions of two shrimp species, deep seawater rose-shrimp (Parapenaeus longirostris) and red shrimp (Plesionika martia), were determined. Amount of lipid in P. longirostris and P. martia was found as 1.1 and 2.61 %. Proportion of lipid in both shrimps was lower than that of marine fish. Surprisingly, FA profile of these 2 shrimp species can be comparable with that of marine fish. The amounts of PUFA's in both shrimp species were found higher than those of SFA and MUFA. Level of DHA in P. longirostris was significantly (p<0.05) higher than that of P. martia. In addition, major macro elements found in both of the shrimp species were Ca, K, Na, P and Mg. Zinc and iron were the major micro elements followed by Cu and Mn. Heavy metals such as, Cd and Cr, were in below the safe limits. © Medwell Journals, 2009.Öğe Effect of Dietary Canola Oil Level on Fatty Acid Composition of Rainbow Trout (Oncorhynchus mykiss L.)(Israeli Journal Of Aquaculture-Bamidgeh, 2011) Dernekbasi, Seval; Karayucel, Ismihan; Oksuz, AbdullahThe effects of different levels of dietary canola oil on fatty acid composition of rainbow trout (Oncorhynchus mykiss) were investigated. Five experimental diets with equal protein (47%) and lipid (17%) contents were formulated for rainbow trout with a mean weight of 119 +/- 0.17g. Canola oil was used to replace 0, 25%, 50%, 75%, or 100% of the fish oil in the control diet. Fish were fed twice daily to satiation for 70 days. At the end of the study, fatty acid compositions in the trout body mirrored the fatty acid compositions of the experimental diets. The highest fatty acids were palmitic acid (C16:0), oleic acid (C18:1n-9), linoleic acid (C18:2n-6), and docosahexaenoic acids (C22:6n-3). The study showed that, under our test conditions, canola oil can replace 100% of fish oil with no negative effect on the chemical or fatty acid composition of rainbow trout.Öğe Fatty Acid Composition and Mineral Content of Upeneus moluccensis and Mullus surmeletus(Central Fisheries Research Inst, 2011) Oksuz, Abdullah; Ozyilmaz, Ayse; Kuver, SenolLipid, moisture, fatty acid, and mineral contents of gold band goatfish (Upeneus moluccensis) (Blecker, 1855) and striped red mullet (Mullus surmuletus) (Linnaeus, 1758) were investigated. The lipid and moisture contents in the two species were found to be significantly different from each other (P<0.05). Lipids of striped red mullet include significantly (P<0.05) higher levels of C14:0, C15:0, C16:1, C17:1, C18:1n9, C18:2n6, C20:3n6, DHA (Docosahexaenoic Acid, C22:6n3) and EPA (Eicasapentaenoic Acid, C20:5n3) fatty acids than those of gold band goatfish. Proportions (%) of SFA (Saturated Fatty Acid), MUFA (Monounsaturated Fatty Acid), and PUFA (Polyunsaturated Fatty Acid), DHA/EPA, and n3/n6 were found to be 39.30, 26.81, 32.18, 3.26, and 5.35 for gold band goatfish and 36.72, 41.83, 18.92, 0.89, and 3.31 for striped red mullet, respectively. K and P were found to be predominant among the 11 measured minerals in the two species. Only the K, Ca, and Na content of the two fish species were found to be significantly different (P<0.05).Öğe Levels of Heavy Metals in Some Commercial Fish Species Captured from the Black Sea and Mediterranean Coast of Turkey(Springer, 2009) Turan, Cemal; Dural, Meltem; Oksuz, Abdullah; Oezturk, BayramThe distribution of some heavy metals in the muscle tissue of Merlangius merlangus (whiting), Mullus barbatus (red mullet), Engraulis encrasicholus (anchovy) from Black and Mediterranean Seas were studied. The highest Al (95.313 mu g/g dw), Mn (1.390 mu g/g dw), Zn (25.416 mu g/g dw) concentration was detected in E. encrasicholus from Black Sea; the highest Li (3.200 mu g/g dw) concentration was detected in E. encrasicholus from Mediterranean Sea; the highest Cd (1.685 mu g/g dw) concentration was detected in M. merlangus from Mediterranean Sea; the highest Ni (1.363 mu g/g dw) concentration was detected in M. merlangus from Black Sea; the highest Pb (0.727 mu g/g dw) concentration was detected in M. barbatus from Black Sea and the highest Cr (1.893 mu g/g dw), Fe (21.901 mu g/g dw) concentration was detected in M. barbatus from Mediterranean Sea.Öğe Physicochemical properties of cold pressed sunflower, peanut, rapeseed, mustard and olive oils grown in the Eastern Mediterranean region(Elsevier Science Bv, 2019) Konuskan, Dilsat Bozdogan; Arslan, Mehmet; Oksuz, AbdullahFatty acid composition and stability of vegetable oils have taken more attention as an essential source of biologically active compounds in a good balanced diet. The purpose of the study was to determine peroxide value, free fatty acids, unsaponifiable matter, total carotenoid content, iodine value and fatty acid composition of sunflower, rapeseed, mustard, peanut and olive oils. Rapeseed and peanut oils had the highest peroxide values, while sunflower oil had the lowest peroxide values. The free fatty acid value of the tested oils varied between 0.43 and 1.36% oleic. The peanut oil had the highest free acid value and the mustard oil had the lowest one. Total carotenoid contents of mustard and rape seed oil were higher than those of the other oils tested. Palmitic acid (C16:0), oleic acid (C18:1) and stearic acid (C18:0) were the common main fatty acid components of the vegetable oils tested. Followed by linoleic acid, the amount of oleic acid was the highest among other fatty acid components. Mustard oil had the highest erucic acid (C22:1) with the amount of 11.38%, indicating that it cannot be used for human consumption. Among the oils investigated, sunflower and mustard oils were more stable than rapeseed, peanut and olive oils. (C) 2018 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.Öğe Production of a dry sausage from African catfish (Clarias gariepinus, Burchell, 1822)(Wiley, 2008) Oksuz, Abdullah; Evrendilek, Gulsun Akdemir; Calis, Muzaffer Seufi; Ozeren, AkifProduction of a dry sausage from African catfish and determination of its microbial, chemical and sensory properties during a 70-day storage at both 4 and 22 degrees C were prompted. pH of the samples at 4 and 22 degrees C did not significantly change during the storage (P > 0.05). Moisture content of the samples was 74%, and reduced to 45% at 4 degrees C and to 22% at 22 degrees C. Protein content of the samples was 20.71%, and increased to 42.5% at 4 degrees C and to 57.99% at 22 degrees C. Total lipid content was 4.5%, and increased to 10.98% at 4 degrees C and to 15.68% at 22 degrees C (P < 0.05). Microbial analyses showed that there was a significant reduction in total aerobic mesophilic and psychrotrophilic bacteria, total mould and yeast, total lactic acid bacteria, total Enterobacteriaceae and Staphylococcus aureus counts at both 4 and 22 degrees C (P < 0.05). Samples stored at 4 degrees C had significantly higher sensory ratings than that of the samples stored at 22 degrees C (P < 0.05).Öğe Proximate Composition, Fatty Acid Profile and Mineral Content of Wild Brown Trout (Salmo trutta sp.) From Munzur River in Tunceli, Turkey(Asian Journal Of Chemistry, 2011) Kayim, Murathan; Oksuz, Abdullah; Ozyilmaz, Ayse; Kocabas, Mehmet; Can, Erkan; Kizak, Volkan; Ates, MehmetIn present study, the proximate composition, fatty acid profile and mineral content of wild brown trout living in Munzur river (Tunceli/Turkey) were investigated. The average level of protein, lipid, moisture and ash content of muscle of the wild brown trout was calculated to be 17.48, 2.3, 77.8 and 1.5 %, respectively. Thirty fatty acids were identified in this study. Identification of the fatty acid was carried out with gas chromatography-mass spectrometry (GC-MS). The total polyunsaturated fatty acids (PUPA) were found the highest fatty acid followed by that of saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA). Docosahexaenoic acid (DHA, C22:6n3) and eicosapentaenoic acid (EPA, C20:5n3), linolenic acid (LNA, C18:3n3) and linoleic acid (LA, C18:2n6) were found to be predominant fatty acids in PUFAs with the percentages of 11.25, 6.82, 6.30 and 4.88, respectively. The ratio of n3/n6 and DHA /EPA was calculated to be 4.55 and 1.65, respectively. Twelve elements were determined in this study. Determination of elements was performed with ICP-AES. P and K were the predominant element among the minerals analyzed and calculated to be 1305.56-2967.06 and 1908.68-1220.10 mg kg(-1) in muscle-skin of the wild brown trout, respectively.Öğe RESEARCH NOTE: A COMPARISON OF THE CHEMICAL COMPOSITION OF ZANDER (SANDER LUCIOPERCA) LIVING IN DIFFERENT LAKES OF TURKEY(Wiley, 2009) Oksuz, Abdullah; Kucukgulmez, Ayguel; Diler, Abdullah; Celik, Mehmet; Koyuncu, EsraIn the present work, the proximate compositions, minerals and trace element contents of zander (Sander lucioperca) caught from two lakes (Beysehir Lake and Seyhan Dam Lake) of Turkey were compared. There were significant differences between moisture and lipid contents, although there were no statistically significant differences between crude protein and ash contents. The mineral and trace elements determined were Na, K, Ca, P, Mg, Zn, Cu, Fe, Pb and Se. Although Na and Fe contents of zanders in two different lakes were different from each other (P < 0.01), we found no statistically significant differences in terms of Mg, Ca, P, Cu, Pb, Se, Zn contents (P > 0.01). Among the minerals analyzed, K was the highest followed by P, Ca, Na and Mg. The most abundant trace elements were Zn, Fe, Cu, Se followed by Pb, and these elements were below the limits proposed by Turkish Food Codes for human consumption in the meat of zander.
