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Ekmeklerde Aktif Paketleme Uygulamaları Texte intégral
2017
Ali Göncü | Sami Gökhan Özkal
Tüketicilerin tercihlerindeki değişikliklerle birlikte paketleme teknolojilerinde yenilikler ve gelişmeler meydana gelmiştir. Bu yeni gelişmelerin bir sonucu olarak sadece koruma fonksiyonuna sahip olan pasif paketleme tekniklerinin yerini gıda ürünlerinin muhafazasının yanında daha birçok fonksiyona sahip aktif ve akıllı paketleme teknolojileri almaya başlamıştır. Yenilikçi paketleme çeşitlerinden biri olan aktif paketlemenin kullanımı gıdaların raf ömrünü önemli oranlarda artırmaktadır. Ekmeklerin paketlemesinde de aktif paketleme uygulamaları kullanılmaya başlanmıştır. Bu çalışmada ekmekte kullanılan aktif paketleme uygulamaları özetlenmiştir.
Afficher plus [+] Moins [-]The Non-Linear Relation between Governance and Efficiency: Evidence from Agriculture Texte intégral
2017
Nizamettin Bayyurt | Zehra Vildan Serin
This study aims to explore the relations between governance and agricultural performance of countries. Data Envelopment Analysis was used to find out agricultural performance of 81 countries at first stage. Panel data regression was employed in the second stage to assess the relations between performance levels of countries and their governance. Six governance indicators namely; voice and accountability, control of corruption, government effectiveness, regulatory quality, rule of law and political stability and violence were analyzed in this stage. Findings show that firstly, governance indicators are highly correlated with each other. Secondly, developed countries are more efficient and have better governance than developing and undeveloped countries. Finally, a quadratic form of regression was the fitting model that is the marginal effects of good governance on performance are increasing in high values of governance.
Afficher plus [+] Moins [-]Fluid Bed Coating and Its Food Applications Texte intégral
2017
Zeynep Atak | Mehmet Koç | Figen Kaymak-Ertekin
There are various food-processing technologies with the aim of protecting foodstuffs from environmental factors and increasing their shelf life. One of these is encapsulation technology, which has recently been used with an increased interest. With the fluidized bed coating, which is one of the physical methods used for encapsulation, the solid core materials are fluidized via the air stream and a film layer is formed on the surface of the core material with the coating material. The applicability of the fluid bed coating technique, as well as particulate properties, is significantly influenced by process variables used in the system, environmental variables and thermodynamic factors. The release characteristics of capsules formed during the process can be changed by various mechanisms such as heating, dissolution, mechanical or chemical fracture etc. and controlled release can be achieved. The fluidized bed coating method not only has the advantage of controlled release but also provides a homogeneous powder product, reduction of fine particles, development of transport and storage facilities, protection of reactive components, and prevention unwanted taste and odour. In this study, researches on fluid bed coating mechanism, fluid bed coating systems and applications of fluid bed systems in the food industry have been reviewed.
Afficher plus [+] Moins [-]Türkiye’de Besiye Alınan Simmental, Aberdeen Angus, Hereford, Limousin ve Charolais Irkı Sığırların Besi Performansı ve Karkas Özellikleri Texte intégral
2017
Serdar Duru | Halil Sak
Bu araştırmada, Simmental (SİM), Aberdeen Angus (ANG), Hereford (HER), Limousin (LİM) ve Charolais (CHA) ırkı sığırların besi performansı ve karkas özelliklerinin belirlenmesi amaçlanmıştır. Uruguay ve Fransa’dan 2015 yılında ithal edilen 10-12 aylık yaştaki 606 baş erkek sığır kullanılmıştır. Tüm hayvanlar yaklaşık 7-9 ay süren besi süresinde aynı rasyon ile sınırsız beslenmişlerdir. Hayvanlar Nisan-Haziran 2016 arasında kesilmişlerdir. Varyans analizi sonucunda ırk, besi başı ağırlığı (BBA) ve besi süresi (BS) incelenen özelliklerin çoğu üzerine etkileri önemli (P
Afficher plus [+] Moins [-]Modernized Irrigation Technologies in West Africa Texte intégral
2017
Hakan Büyükcangaz | Mohammed Alhassan | Jacqueline Nyenedio Harris
Crop production in West Africa is mostly dependent upon rainfed agriculture. Irrigation is a vital need due to uneven distribution of rainfall and seasonality of water resources. However, management and sustainability of irrigation are under risk due to notably weak database, excessive cost, unappropriate soil or land use, environmental problems and extreme pessimism in some quarters since rainfed agriculture is seen as potentially able to support the present population. This paper focuses on modernized irrigation technologies and systems that utilize less water. Information about irrigation systems in Ghana and Liberia were gathered through: 1) Irrigation development authorities in both countries, by reviewing past literatures, online publications, reports and files about irrigation in West Africa, specifically Ghana and Liberia; 2) International Food Policy Research Institute (IFPRI); 3) Collation of information, reports and data from Ghana Irrigation Development Authority (GIDA) and 4) International Water Management Institute (IWMI). The result shows that both countries have higher irrigation potential. However, the areas developed for irrigation is still a small portion as compare to the total land available for irrigation. On the other hand, as seen in the result, Liberia as compare to Ghana has even low level of irrigation development.
Afficher plus [+] Moins [-]Effects of the Stage of Maturity of Merremia emarginata on Initiating Formation of Phytobezoars in Sheep in North Kordofan, Sudan Texte intégral
2017
Musa Ahmed Musa Tibin | Jumaa Barram Jadalla | Yahia Mohammed Abutaba | Idris Adam Idris Abdalla
Thirty castrated rams of Sudanese Desert sheep breed, Hammari ecotype at 1.5-2 years were divided into five groups each with six animals. The animals were weighed prior commencement of the trial (30+ 0.500 kg) and once every week for ninety days. They were vaccinated against diseases endemic to the study area, drenched with a broad spectrum anthelementic and ear-tagged to facilitate identification during treatments. The rams were individually penned provided with drinking and feeding troughs. Rumen liquor was taken for in vitro dry matter and organic matter digestibility. During the trial period, animals were diagnosed by palpation for phytobezoars. At the end of the experiment rams were slaughtered, the site of formation of ball-shaped bodies determined, size and weight were also determined. Data was analyzed via analysis of variance. The results indicated increased feed intake for the group that was on a ration free of Merremia emarginata and those consumed rations with the plant biomass at vegetative growth and at flowering stages. At early and late maturity stages, feed intake decreased and phytobezoars were formed. The bezoars differed in weight and size, where larger and heavier ones were retained from the rumen, medium irregular ones from omasum and small bezoars from the reticulum. It was concluded that M emarginata biomass could initiate phytobezoars' formation at seed formation stage or when it reached late maturity stage. Palpation showed presence of bezoars after continuous ingestion of feed containing the plant biomass. It was recommended that more studies be conducted to determine the minimal amount of the biomass under study to initiate phytobezoars' formation.
Afficher plus [+] Moins [-]Menşe İşaretli Karnavas Dut Pekmezi’nin Tüketici Tercihlerine Dayalı Pazarlama Stratejileri Texte intégral
2017
Yavuz Topcu | Derya Baran
Çalışmanın amacı, Erzurum’da ikamet eden tüketicilerin menşe işaretli Karnavas Dut Pekmezi tüketim tercihleri ve satın alma modellerini etkileyen temel faktörlere dayalı bütünsel pazarlama stratejilerini belirlemektir. Çalışmanın ana materyali, Erzurum ilinde ikamet eden ve Karnavas Dut Pekmezi tüketen 401 hane halkı ile yapılan anket çalışmasından elde edilen birincil verilerden oluşmaktadır. Elde edilen verileri dikkate alarak; satın alma kararı üzerinde etkili olan ana faktörlerin belirlenmesinde Temel Bileşenler Analizi (PCA) ve tüketicilerin tüketim sıklıklarına göre grupların oluşturulmasında İki Aşamalı Kümeleme Analizi kullanılmıştır. Araştırma sonuçları; Karnavas Dut Pekmezi’ni yoğun ve ılımlı düzeyde tüketen kullanıcılar sırasıyla doğrudan pazarlama yaklaşımları altında kırsal kalkınmaya katkı sağlamak için menşe etiketli bütünsel kalite ve geleneksel üretim metotlarından sağlanan duyusal kalite niteliklerini dikkate alan yerel markalı genişletilmiş ve gerçek mamul imajlarının perakende seviyesinde konumlandırılmasının gerekliliğine işaret etmişlerdir. Diğer taraftan düşük düzeyde kullanıcılar ise, geleneksel üretim metotları ve hedonik kalite yaklaşımını uygulayan yerel markalı gerçek mamul imajları altında mamullerin konumlandırılması ve tutundurma karması ile yayılım etkisinin artacağı üzerine odaklanmışlardır. Bu yüzden her bir segmentteki kullanıcıların ihtiyaç ve istekleri dikkate alınarak, onların fayda beklentileri ile mamul imajlarına göre konumlandırma ve tutundurma stratejileri uygulanabilir.
Afficher plus [+] Moins [-]Agricultural Credit Market and Farmers’ Response: A Case Study of Turkey Texte intégral
2017
Erdogan Gunes | Hormoz Movassaghi
Agriculture is an important sector in Turkey’s economy. Access to credit financing is critical for timely acquisition of different inputs, farm productivity, and ultimately farmers’ financial well-being. Historically, Ziraat Bank and Agricultural Credit Cooperatives, supported by Turkish government, have been the principle supplier of loanable funds in the agricultural sector. However, since 2000, many private banks have discovered the potential of this market and entered the competition. This study was designed to investigate the structure of the agricultural credit market in Turkey and identify factors that influence farmers’ preference among alternative lenders. It was found that although the 550 Turkish farmers surveyed had several options among lenders, low interest rates and attainable eligibility criteria emerged as the most important differentiators among banks. Results from the Analytic Hierarchy Process (AHP) demonstrate the rising role of private banks’ credit. However, Ziraat Banks’ subsidized credits still dominant and its composite weight is 30.74% of total amount of agricultural credit market.
Afficher plus [+] Moins [-]Assessment of Metal Levels In Some Plants From Giresun Texte intégral
2017
Mustafa Türkmen | Köksal Duran | Aysun Türkmen
The study performed the metal bioaccumulations in seven plant species from Giresun city. A total 140 specimens were collected from two stations (Station A; 40° 48’ N, 38° 19’ E, Station B; 50° 54’ N, 38° 26’ E) from March 2012 to September 2012. Plant samples were dissected, homogenized and dried at 105°C for 24 hours. An approximately 0.25 g sample of each plant leaf was digested with Cem Mars 5 microwave oven. After cooling, the residue was transferred to 50 ml volumetric flasks and diluted to level with deionized water. Before analysis, the samples were filtered through a 0.45 µm filter. All samples were analyzed (as mg kg-1 dry weight) three times for cobalt chromium, copper, iron, manganese, nickel, lead and zinc by ICP-MS. A logarithmic transformation was done on the data to improve normality. One way ANOVA and Duncan’s multiple range tests were performed to test the differences among metal levels of species. Concentrations of metals in the examined species ranged from 0.05 to 1.80 for cobalt, 0.14 to 3.24 for chromium, 2.33 to 28.1 for copper, 38.9 to 533 for iron, 1.81 to 64.6 for manganese, 0.81 to 18.9 for nickel, 0.32 to 6.22 for lead and 14.3 to 536 for zinc, in mg kg-1 respectively. Iron had the highest concentrations in all examined plant species in both stations except Zn for Sambucus ebulus in Station B. Second highest metal was zinc after iron. On the other hand, cobalt had lowest levels than other metals. The differences among metal levels in plant species were statistically significant. Maximum Provisional Tolerable Weekly Intakes (PTWI) in edible plant species were calculated.
Afficher plus [+] Moins [-]Antibacterial Activity and Chemical Composition of Essential Oils from Some Galium (Rubiaceae) Species Against Pathogenic Bacteria Texte intégral
2017
Filiz Yağız | Rifat Battaloğlu | Sedef İlk | Ahmet Savran
In this work, chemical composition and antimicrobial activity of the essential oils of Galium incanum, Galium dieckii ve Galium aladaghense were firstly reported. The essential oils were obtained from the all parts of the plant by hydrodistillation and analyzed by using GC-MS. Antimicrobial activity of synthezied essential oils was carried out against 5 pathogen bacteria Escherichia coli (E. coli) ATCC 25922, Staphylococcus aureus (S. aureus) ATCC 25923, Pseudomonas syringae pv. tomato (P. syringae) DC300, Salmonella enterica serotype Typhmurium (S. typhmurium) SL 1344 and Streptococcus mutans (S. mutans) ATCC 25175. According to the results, it was determined that isolated essential oils comprised of 61 compounds. Compounds of essential oils included that structure monoterpene (8.2%), monoterpenoid (14.75%) and sesquiterpene (14.75%). Unclassified compounds have been identified as other compounds. From the antimicrobial activity was observed that the isolated essential oil from Galium incanum, Galium dieckii ve Galium aladaghense exhibited a potent inhibitory effect against all gram negative and gram positive bacteria with diameter of inhibition zones ranging from 4.3 to 12.3 mm. Essential oil of Galium aladaghense indicated that high antimicrobial activity on all bacteria than Galium incanum and Galium dieckii.
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