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Результаты 701-710 из 2,985
Changes in the Quality of Black Mulberry and Blueberry Sherbets During Storage
2017
Ahsen Rayman Ergün | Yeliz Tekgül | Hamza Bozkır | taner baysal
This study was evaluated the quality properties of traditional drink sherbets that are prepared from black mulberry and blueberry fruits. After production sherbets were investigated to determine their pH, acidity, °brix and colour values, total sugar, phenolic, anthocyanin and antioxidant contents. Moreover the sherbets stored at 4°C during 2 months and the changes in these quality properties were examined per month. As a result statistically significant changes were observed in the quality properties of these sherbets of black mulberry and blueberry fruits which are known with their rich content of phytochemical compounds. The results show that in blueberry sherbet the degradation of phenolics was faster than black mulberry sherbet. Anthocyanins that are higher in black mulberry sherbets after production were preserved better in blueberry sherbets at the end of 2nd month. L*and a* values decreased for blackberry and blueberry sherbets during storage. b* value decreased from 5.59 to 4.92 for blackberry sherbet while it increased from 0.62 to 0.79 for blueberry sherbet at the end of the storage time.
Показать больше [+] Меньше [-]Determination of Physical, Chemical and Microbiological Properties of Milk From Some Dairy Plants in Sivas Province
2017
Mehmet Beykaya | Ayşe Özbey | Zeliha Yıldırım
In this study, physical, chemical and microbiological properties of 50 raw bulk milk samples obtained from 5 different dairy plants in the Sivas were investigated. The pH, acidity, fat, non-fat dry-matter, total dry matter contents and density of raw milk samples were 4.89-6.70, 0.135-0.495%, 1.7-7.6%, 7.33-9.80%, 10.00-16.90%, and 1.0230-1.0312 g/mL, respectively. Fat content of the 26%, specific gravity of 28%, total dry matter of 32%, solids-non-fat of 58%, pH value of 84% of the milk samples were found lower whereas titratable acidity of 60% of the samples were determined higher than the values stated in the Turkish Food Codex and in the Raw Milk Standard. Total coliform bacteria counts of 30%, total aerobic mesophilic bacteria counts of 88%, and somatic cell counts of 40% of the samples were higher than 1100 MPN/mL, 100000 cfu/mL and 500000 cell/mL, respectively. Yeast-mold counts of 72% of the milk samples were found between 104-106 cfu/mL.
Показать больше [+] Меньше [-]Annual Change of Reproductive Hormones in Female Angora Goats
2017
Erkan Pehlivan | Hüseyin Polat | Gürsel Dellal
In this research, annual changes of melatonin, gonadotropin-releasing hormone, follicle stimulating hormone, luteinizing hormone, estrogen, testosterone and progesterone were studied on 6 heads of 1.5 years old female Angora goat. To determine hormones concentrations, blood samples were taken from jugular vein of each goat in every month for a year. The blood samples were centrifuged at 4000xg for 5 min. and serum was stored at -20°C until analyses time. Hormones analyses in the serum were performed by enzyme immunoassay (EIA) method. Monthly climatic values and photoperiod were obtained from the Turkish State Meteorological Service and temperature-humidity index was calculated with climatic values. In the study, in order to determine any possible differences in the observed hormones concentrations with respect to months, repeated measures ANOVA analysis was performed. As a result of statistical analysis, there were no significant differences among the months for gonadotropin-releasing hormone, follicle stimulating hormone and testosterone concentration, while significant differences were found among the months for melatonin, luteinizing hormone and progesterone, and estrogen concentration in female Angora goats. According the results of this study, could be concluded that the releases of reproductive hormones examined in female Angora goats was seasonally dependent.
Показать больше [+] Меньше [-]Organik Hayvansal Üretimde Bitkisel Drogların Kullanılması: Orta Anadolu Bölgesi Halk Veteriner Hekimliği Örneği
2017
Çağrı Çağlar Sinmez | Aşkın Yaşar
Organik hayvansal üretim, hayvanların fizyolojik ihtiyaçlarına uygun bakım ve besleme yöntemlerinin uygulandığı, gerektiğinde alternatif ilaç ve tedaviye öncelik verilerek hayvan sağlığının korunduğu doğal bir yetiştirme sistemidir. Hayvan yetiştiriciliğinde kullanılan antibiyotik ve antiparaziter ilaçlara karşı dirençli suşların giderek artması, hayvansal ürünlerde ilaç kalıntılarının meydana gelmesi ve bu ürünleri tüketen insanlarda önemli sağlık problemlerine yol açması alternatif bitkisel çözüm arayışlarını beraberinde getirmiştir. Bu çalışmada, Orta Anadolu Bölgesi halk veteriner hekimliği özelinde kullanılan bitkisel drogların organik hayvansal üretimde tedavi ve koruyucu etkilerinin değerlendirilmesi amaçlandı. Çalışmanın materyalini, Orta Anadolu Bölgesi’ndeki (Çankırı, Kayseri, Kırıkkale, Kırşehir, Yozgat) hayvan yetiştiricilerinden elde edilen yazılı, sözlü ve görsel veriler oluşturdu. Çalışmada, sığır, koyun, at, tavuk, arı ve köpek türlerinde görülen iç hastalıkları, cerrahi hastalıklar, doğum ve jinekolojik sorunlar ve paraziter hastalıklarda tedavi amacıyla 30 bitkisel drogun kullanıldığı tespit edildi. Organik hayvancılıkta başta antibiyotikler olmak üzere her türlü sentetik ilaç kullanımının yasaklandığı ya da sınırlandığı değerlendirildiğinde, sürü sağlığının korunması ve tedavisinde bu maddelerin yerine doğal olan bitkisel drogların tercih edilmesinin olumlu katkılar sağlayacağı ileri sürülebilir.
Показать больше [+] Меньше [-]Gümüşhane İlinin Agro-Turizm Potansiyelinin Değerlendirilmesi
2017
Suat Akyürek | Besim Karabulut
Günümüzde giderek önemi artan ve alternatif turizm çeşitlerinden biri olan agro-turizm, tarım ve turizmin bir araya gelmesi ile ortaya çıkmıştır. Agro-turizm, yoğun şehir yaşantısından uzaklaşmak isteyen bireylerin genellikle çiftlik tarzı evlerde konakladığı, organik ürünlerden faydalandığı doğa ile iç içe yapılan bir turizm faaliyetidir. Özellikle gelişmiş ülkelerde oldukça yaygın olan bu turizm çeşidinin ekonomik, sosyolojik ve biyolojik açıdan birçok katkısı bulunmaktadır. Agro-turizm ülkemizde özellikle Ege ve Akdeniz Bölgesinde yaygın olarak faaliyet göstermektedir. Gümüşhane, Doğu Anadolu ve Karadeniz Bölgesi arasında kalan, bu iki bölgenin iklimini yaşayan ve 113 bin ha’lık tarıma elverişli araziye sahip bir bölgedir. Diğer yandan gerek doğal güzellikleri gerek kültürel mirası ile hâlihazırda bir turizm potansiyeline sahip olan Gümüşhane ilinin agro-turizm açısından da değerlendirilmesi gerektiği düşünülmektedir. Bu bağlamda çalışmada, ilin agro-turizm potansiyeli değerlendirilerek, agro-turizm açısından SWOT analizi yapılmış ve son olarak ilin agro-turizm potansiyelinin geliştirilmesi kapsamında öneriler sunulmuştur. Bu amaçla, ikincil kaynaklardan yararlanılarak veri toplanmıştır.
Показать больше [+] Меньше [-]Determination of Hematological Status as Health Indicator of European Sea Bass (Dicentrarchus labrax L.) Fed Different Dietary Fatty Acids
2017
Aysel Şahan | Hatice Asuman Yılmaz | Orhan Tufan Erdoğan
In this study, the European Sea Bass (Dicentrarchus labrax) were fed rich canola oil which is containing monounsaturated fatty acid (MUFA) and rich cottonseed oil which is containing n-6 polyunsaturated fatty acid (PUFA) and the effects of these feeds on some hematological parameters were investigated. Experimental fish were fed two times daily with 100% fish oil (FO-control), 100% cottonseed oil (CSO), 100% canola oil (CO) and 50% CSO - 50% CO (CSO50-CO50) for 162 days. End of the experiment, total erythrocyte (RBC) amount was highest in the CSO group 269.0 x (104 mm3 -1) compared to all other groups. Leukocyte (WBC) 96.280 x (103 mm3 -1), monocyte, lymphocyte and neutrophil amounts showed significant increases in only CSO group. Therefore, in terms of fish health and welfare, the exclusive use of cottonseed oil without mixing with the other vegetable oils in sea bass diet formulation can be a viable alternative to fish oil since it has the most suitable fatty acids.
Показать больше [+] Меньше [-]Control of Greenhouse Environmental Conditions with IOT Based Monitoring and Analysis System
2017
Ali Çaylı | Adil Akyüz | Abdullah Nafi Baytorun | Sedat Boyacı | Sait Üstün | Fatma Begüm Kozak
Wireless sensor networks applications and inter-machine communication (M2M), called the Internet of Things, help decision-makers to control complex systems thanks to the low data-rate and cost-effective data collection and analysis. These technologies offer new possibilities to monitor environmental management and agricultural policies, and to improve agricultural production, especially in low-income rural areas. In this study, IoT is proposed with a low cost, flexible and scalable data collection and analysis system. For this purpose, open source hardware microprocessor cards and sensors are stored in the greenhouse computer database using the IEEE 802.15.4 Zigbee wireless communication protocol. The data can be analyzed by greenhouse computer analysis software, which is developed with the PHP programming language. It is possible to monitor the real time data from the greenhouse computer. Also alert rules definitions can be made and the system was tested in greenhouse conditions. It has been observed that it performs operations steadily such as data transfer, sensor measurements and data processing. The proposed system may be useful for monitoring indoor climate and controlling ventilation, irrigation and heating systems, especially for small enterprises due to the modular structure.
Показать больше [+] Меньше [-]Vallisneria spiralis (Linneaus 1753) Rearing in Different Nutrient Environments Studies
2017
Hatice Tekoğul | Gamze Turan | Hülya Saygı | Semra Cirik | Edis Koru | Ulviye Karacalar | Şafak Seyhaneyıldız
In this study it was aimed to produce a commercial aquatic plant Vallisneria spiralis in a controlled- aquaculture system. In order to determine the potential of the plant to utilize different nutrient resources relative growth rate depends on biomass yield and individual plant number and length composition of V. spiralis cultivated in semi-shadow and non-shadow conditions were determined. Results of the present work showed that V. spiralis utilized different nutrient resources effectively such as cow, lamb, chicken and commercial fertilizer TSP in cultivation conditions and increased its weight and individual number compare to the control group where nutrient addition is not applied. In semi-shadow condition V. spiralis fresh biomass yield and plant number increase were the highest in cow group and found to be 1.52%±0.03 g.day-1 and 1.80%±0.05 individual.day-1 respectively. The mean length of V. spiralis was found to be the highest (83.56±26.14 cm) in lamb fertilizer group. In non-shadow conditions V. spiralis fresh biomass yield and plant number increase were the highest in cow group and found to be 2.73%±0.07 g.day-1 and 2.52%±0.6 individual.day-1 respectively. The mean length of V. spiralis was found to be the highest (92.74±27.93 cm) in cow fertilizer group as well.
Показать больше [+] Меньше [-]An Investigation of Multiple Antibiotic Resistance and Identification of Bacteria Isolated from Gölbaşı and Azaplı Lakes (Adıyaman)
2017
Fikret Büyükkaya Kayış | Sadık Dinçer | Fatih Matyar | Hatice Aysun Mercimek Takcı | Melis Sümengen Özdenefe | Afet Arkut
Identification and multiple antibiotic resistances of amphicillin, chloramphenicol, streptomycin and tetracycline resistant gram-negative bacteria that isolated microorganisms from Gölbaşı and Azaplı lakes (Adiyaman) were investigated in this study. Seasonally taken isolates of totally 386 bacteria in 10 different species from 7 genera were scanned against 16 antibiotics [gentamycin, imipenem, kanamycin, chloramphenicol, meropenem, nalidixic acid, nitrofurantoin, penicillin, cephalothin, cefazolin, cefpirome, ceftizoxime, cefuroxime, streptomycin, tetracycline and trimethoprim-sulphamethoxazole (Bioanalyse)] by using the disc diffusion method to determine the prevalence of multiple antibiotic resistance. Multiple antibiotic resistance of stations showed seasonal changes between 0.29 and 0.91. In generally, multiple antibiotic resistance in Golbasi and Azapli lakes were higher than the reference value and highest multiple antibiotic resistance values were obtained at summer season (3th period).When the obtained data are considered, high multiple antibiotic resistance poses a risk in terms of public health and for economically important animals.
Показать больше [+] Меньше [-]Optimization of Solid Phase Microextraction Conditions for Volatile Components of Foods by Using Response Surface Methodology
2017
Ceyda Dadalı | Yeşim Elmacı Elmacı
High vacuum steam distillation, simultaneous distillation extraction, steam distillation, purge and trap methods are used for sample preparation in volatile component analysis. Since these methods are difficult and costly to implement, these methods have left their place to the solid phase microextraction technique. Extraction conditions such as extraction temperature, extraction time, sample volume and fiber type should be optimized in order to increase the efficiency of extraction in volatile component analysis with solid phase microextraction in foods. In the optimization of extraction conditions in volatile component analysis of foods, studies have been carried out to utilize the response surface method, which reduces the number of experiments and also examines the interaction effect of the independent variables. In this review, it is aimed to give information about current studies using response surface methodology in optimization of volatile compound analysis of foods using solid phase microextraction technique.
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