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Isolation and identification of α-Endosulfan degrading bacteria from insect microflora Texto completo
2016
Özlem Gür Özdal | Murat Özdal | Ömer Faruk Algur | Alev Sezen
Increasing of industrialization and population has resulted in the accumulation of a wide variety of chemicals. Especially, widespread use of synthetic and toxic chemicals have led to an effort to improve new technologies to reduce or eliminate these contaminants from the environment. Chemical methods that used for the treatment of toxic materials are expensive, time-consuming and difficult, especially in extensive agricultural areas. Furthermore these methods led to formation of new chemical pollutants. Recent years, one promising alternative treatment method is to use of microorganisms for the biodegradation of these toxic chemicals. This method is effective, minimally hazardous, economical, versatile and environment friendly. In this study, we thought that microflora of insecticide resistant insects may be a potential reservoir for the isolation of new bacteria that can be used for the biodegradation of insecticides. In this research work, totally 24 bacterial isolates capable of biodegradation α-endosulsan were isolated from the body microflora of insects belong to Orthoptera, Dermaptera, Mantodea and Hymenoptera orders. Based on the some morphological, physiological and biochemical characteristics and fatty acid profiles they were identified as Stenotrophomonas, Pseudomonas, Acinetobacter, Bacillus, Brevibacillus, Flavimonas and Rhodococcus. As a result, these isolates can be used for the treatment of α-endosulfan residues at different environments.
Mostrar más [+] Menos [-]Determining the Sediment Quality of Yağlıdere Stream (Giresun) Texto completo
2016
Arzu Aydın Uncumusaoğlu | Cengiz Mutlu | İlhami Kayış
Sediments in aquatic systems are often contaminated by various pollutants originating from the sources such as industrial and agricultural discharges, municipal wastewater treatment plants, and storm water. These effects lead to the need to develop sediment quality objectives regarding the protection of aquatic ecosystems and human health. In this study, the sediment samples were collected from five sampling sites and then analyzed in order to identify the concentrations of certain metals (As, Se, Ag, Cd, Na, and K), the levels of pH, conductivity, water content (%) and organic matter (%) in the Yağlıdere Stream. Finally, Geo-accumulation index values calculated based on the estimations regarding the background trace element concentrations suggested the anthropogenic influences in most of the samples. In conclusion, it was observed that K, Na, As, and Se dominantly accumulated in the study area. These metals may have a negative impact on the research area and create an environmental risk.
Mostrar más [+] Menos [-]Moisture Sorption Isotherms of Yogurt Powder Containing Candied Chestnut Puree Texto completo
2016
Aslı Zungur Bastıoğlu | Safiye Nur Dirim | Figen Kaymak Ertekin
Yogurt powder was produced by freeze drying and with added candied chestnut puree at ratios of 5, 10, and 20 % by weight. Moisture sorption isotherms of yogurt powder samples, plain (YP), and containing 5, 10, 20% candied chestnut puree (CCP) were determined at 25°C using the standard, static-gravimetric method. The experimental adsorption data of yogurt powders at 25°C were fitted to 14 sorption equations which are most widely used to fit experimental sorption data of various food materials. The parameters of the sorption models were estimated from the experimental results by using the nonlinear regression analysis. The GAB model gave the closet fit to the sorption data of freeze dried yogurt powders with candied chestnut puree at 25°C. BET, Ferro Fanton, Henderson, Halsey, Oswin and Modified Oswin models are also acceptable for describing the adsorption isotherms for freeze dried yogurt with candied chestnut puree at 25°C.
Mostrar más [+] Menos [-]Investigation of Fish Consumption in Giresun City Texto completo
2016
Mustafa Türkmen | Aysun Türkmen | Köksal Duran
This study aimed to investigate the fish consumption in Giresun by survey method. Fish meat was compared with other meat types according to education, level of income, consumption rate and quantity. In research carried out according to the random sampling method. Questions were asked face to face a total of 433 persons. A total 428 participants (98.9%) stated that they consumed fish. However, the most consumed meat type is chicken, second is fish. A total 91% participant preferred marine fish. The most consumed fish species is anchovy with 34%. Fish consumption per person in Giresun is above Turkey’s average with 12.34 kg/year.
Mostrar más [+] Menos [-]Efficiency of Different Nitrogen Forms in Buckwheat (Fagopyrum esculentum Moench) Texto completo
2016
Burhan Kara | Fatoş Güllü Çelebi | Nimet Kara | Bekir Atar
The research was carried out with aim to determination the efficient of nitrogen forms (ammonium sulfate, ammonium nitrate and urea) on nitrogen use efficient for buckwheat in Isparta during 2014 and 2015 years. All the examined characteristics were determined higher values in applied nitrogen forms according to non-nitrogen parcel. In compared to nitrogen forms, the highest grain yield (1456 and 1325 kg ha-1), biological yield (4873 and 4512 kg ha-1), 1000 grain weight (24.9 and 24.8 g), agronomic efficient (24.96% and 24.25%), recycling efficient (0.24% and 0.22%) and utilization efficient (0.25% and 0.18%) were obtained from ammonium sulfate, the highest protein content (11.37% and 12.44%) and agro-physiological efficient (0.27% and 0.24%) from ammonium nitrate in both years. Among the nitrogen forms weren’t significant differently in physiological efficient in both years, recycling and utilization efficient in the first year. The mineral nutrient content varied according to nitrogen forms. Generally, ammonium sulfate was positive effect to yield and some quality parameters.
Mostrar más [+] Menos [-]Elemental Composition of Soils Mixed with the Grape Molasses Texto completo
2016
Aslı Kurnaz | Şeref Turhan | Muazzez Gezelge | Aybaba Hançerlioğulları | Mehmet Atıf Çetiner
Molasses, which is a traditional food substance obtained by boiling the fruit with local procedures and is abundantly eaten by Turkish people, are commonly produced from grapes. Zile, which is county of Tokat city placed in Central Black Sea region, is famous with molasses in Turkey. A special soil called as molasses soil containing CaO is added into to molasses in order to resolve acidification during production process. The purpose of this study is to determine the element concentration levels in grabe molasses soil samples collected from Zile by using energy dispersive X-ray fluorescence spectrometry (EDXRF). For this purpose, thirty-eight elements and eleven oxides were detected in molasses soil samples. The average concentrations of six major oxides (MgO, Al2O3, SiO2, K2O, CaO and Fe2O3) were found as 1.58%, 7.96%, 17.01%, 1.01%, 30.52% and 8.72%, respectively. Also, the average concentrations of three minor (Na2O, P2O5 ,TiO2) and two trace (SO3, MnO) oxides were found as 0.96%, 0.12%, 0.95% and 0.04%, 0.1%, respectively.
Mostrar más [+] Menos [-]The Effects of Dietary Rosemary (Rosmarinus officinalis L.) Essential Oil Supplementation on Laying Hen Performance, Egg Quality and Oxidative Stability of Egg Texto completo
2016
Tülay Çimrin | Murat Demirel
This experiment was designed to investigate the effects of rosemary essential oils in various doses on hen performance, egg quality, lipid peroxidation malondialdehyde (MDA) level in fresh and stored egg yolk. The experiment was carried out in random parcel experimental design. In the experiment, 6 groups were formed and each group was divided into 5 replicates. In total 240 Bovans hite laying hens, each replicate included 8 hens, 32 weeks old, were used. Treatment groups were control (Negative Control), 500 mg//kg antibiotic (Positive Control 1), 200 mg/kg vitamin E (Positive Control 2), 100 mg/kg rosemary essential oil, 200 mg/kg rosemary essential oil, 300 mg/kg rosemary essential oil. There was no significant difference in live weight, egg production, egg weight, damaged egg ratio, mortality and egg quality but feed comsumption, feed conversion ratio (FCR) and egg yolk MDA values were affected significantly in between control and treatment groups. At all treatment groups feed comsumption decreased significantly and other groups improved in feed conversion ratio except 500 mg/kg antibiotic and 100 mg/kg rosemary doses groups compared to negative control significantly. 100 mg/kg rosemary essential oil addition during the storage time for 42 and 56 days and 200 mg/kg vitamin E addition for all storage time to ration decreased egg yolk MDA values significantly. As a result, laying birds fed 200 mg/kg vitamin E, and 100 mg/kg of rosemary essential oil additives can use to prevent lipid oxidation.
Mostrar más [+] Menos [-]Notes on Edibility of Tricholoma Species Texto completo
2016
Hakan Allı | İsmail Şen
The genus Tricholoma (Fr.) Staude is important in terms of hosting edible and poisonous species. Therefore, in this study, edible and poisonous Tricholoma species are evaluated, edible and valuable species are introduced. Also, poisoning syndromes are examined and discussed.
Mostrar más [+] Menos [-]Trace Minerals in Poultry Nutrition and the Efficiency of Chelating Forms Texto completo
2016
Kasım Özek
The efficiency of chelated forms of trace minerals in poultry nutrition and the trace minerals requirements of poultry were discussed in this review. Trace minerals are essential for all farm animals, and these minerals, individually or together with other mineral, take part in many events such as metabolic activities, development and repair of different tissues, growth, immune and reproductive systems. In the last years, lots of studies related to different organic forms of trace minerals on the effects of broiler and laying hens were carried out. The results of these studies have showed that organic trace minerals added to poultry diets at lower levels than inorganic trace minerals are more efficient than inorganic trace minerals and they provide some advantages in poultry nutrition. One of the most important advantages is the reduction of mineral amount excreted in faces. In addition, the results of researches conducted especially in the last few years have shown that the chelated forms of trace minerals strengthen the poultry immune system, and increase the use of other nutrients. However, there are inconsistent between the effects of different forms of trace minerals used in poultry diets on the performance.
Mostrar más [+] Menos [-]The Evaluation of Fruit Sapling Producing Enterprises by the SWOT Analysis in Hatay Province Texto completo
2016
Nuran Tapkı | Faruk Emeksiz | Erdal Dağıstan
In this study, SWOT (Strengths, Weaknesses, Opportunities, Threats) analyses is done in order to reveal current status of fruit sapling suppliers in Hatay. Data collected from representative face-to-face surveys using full counting method with totally 92 suppliers in the present study. Current statuses of companies were revealed according to SWOT analyses. Favourable ecological conditions, proximity to citrus growing areas and sea, presence of unemployed person in the family and accessibility were the strengths of selected region. Low educational level, small parcels of land, suppliers without regular records, unconsciousness of producers on organizing were the weakness of the selected region, on the contrary.
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