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Cevap Yüzey Metodu Kullanılarak Keçiboynuzu Ekstraktında Bulunan D-Pinitolün Nanofiltrasyon Uygulamasıyla Zenginleştirilmesinin Optimize Edilmesi
2020
Ahmet Hacıoğlu | Ursula Tania Zoua Assoumou | Melis Yıldız | Aslı Arslan Kulcan | İbrahim Yavuz | Mustafa Karhan
Bu çalışmada keçiboynuzu ekstraktında bulunan D-pinitolün 1-5 kDa ayırma sınırı aralığında nanofiltreler kullanılarak zenginleştirilmesi amaçlanmıştır. Zenginleştirme aşamaları ekstraksiyon, durultma, adsorban uygulaması ve nanofiltrasyon uygulamalarından oluşmaktadır. Nanofiltrasyon uygulamasını optimize etmek amacıyla Box-Behnken Cevap Yüzey Metodu (CYM) kullanılmıştır. Son aşamada elde edilen ürünün saflık kontrolü için D-pinitol içeriği, şeker kompozisyonu, toplam fenolik madde (TFM), toplam kuru madde (TKM) ve mineral madde kompozisyonları kullanılmıştır. Ekstraktlarda en yüksek D-pinitol konsantrasyonuna 5 kDa ayırma sınırındaki nanofiltrasyonda, 3 bar besleme basıncı, 25°C besleme sıcaklığı ve %83,3 permeat oranı koşullarında ulaşılmıştır. Bu koşullarda elde edilen permeat akısının D-pinitol içeriği 10,48 g/L olarak belirlenmiştir. Çalışmada ayrıca nanofiltrasyon prosesi için basınç, sıcaklık ve permeat/retentat oranı değişkenlerine bağlı bir optimizasyon modeli oluşturulmuş ve farklı koşullara bağlı olarak ekstraktların D-pinitol konsantrasyonundaki değişim yüksek doğrulukla (R2=0,91) matematiksel olarak modellenmiştir. Bu modele bağlı olarak, keçiboynuzu ekstraktlarında en yüksek sakkaroz, TFM ve TKM miktarları D-pinitol konsantrasyonunun %8,7 olduğu koşulda belirlenmiştir.
Afficher plus [+] Moins [-]Effect of Dung Cake Biochar and NP Fertilizers on Growth and Yield of Carrot (Daucus carota L.) and Selected Soil Physico-Chemical Properties
2020
Kenzemed Kassie Yassin | Kibebew Kibret | Tadele Amare
Biochar as agricultural soil amendment to improve soil physico-chemical properties, crop productivity and sustainable soil fertility management is a well-known practice. A field experiment was conducted to evaluate the effect of biochar on growth and yield components of carrot and selected soil physic-chemical properties. The study was carried by employing a randomized complete block design with factorial arrangement of four level of biochar (0, 4, 8 and 12 tons ha-1) and four level of Nitrogen/Phosphorus (N/P) fertilizer rate (0/0, 60/10, 90/15 and 120/20 kg ha-1) with four replications. Biochar significantly influenced physico-chemical properties of soils, such as bulk density, total porosity, pH, EC, SOC, TN, Av. P and CEC respectively, as compared to control. The results revealed substantial responses to biochar and N/P fertilization on growth and yield components of carrot with increasing level of biochar and N/P fertilizer rate. None of the others yield parameters were significantly affected by the interaction of two factors. From the present study, it can be concluded that dung cake biochar should be applied to enhance and improve soil physical and chemical properties for favourable plant growth.
Afficher plus [+] Moins [-]Evaluation of Good Manufacturing Practices (GMP) and Sanitation Standard Operating Procedure (SSOP) Implementation for Supporting Sustainable Production in Bakery SMEs
2020
Sucipto Sucipto | Petri Wani Sumbayak | Claudia Gadizza Perdani
Resources efficiency in production is essential to support sustainable production. “X” Bakery is one of the bread small and medium enterprises (SMEs) in Batu, East Java Indonesia. This study aimed to evaluate the implementation of Good Manufacturing Practices (GMP) and Sanitation Standard Operating Procedure (SSOP) in bread processing of SMEs production. This research used observation methods, interviews, and questionnaires. Respondents in this research are supervisors and employees of “X” Bakery. The results of this study indicated that the GMP implementation achieved 58.3% and SSOP of 52.3%, implying this industry had been standing under a minimum of 60%. This industry had poor qualified of GMP and SSOP. Five aspects of GMP have be fulfilled, namely the location and environment, production equipment, process control, food labelling, and product recall. Although, nine elements that have not met, namely buildings and facilities, water supply, sanitation facilities and activities, pest control, employee health, storage, supervision by the responsible person, employee documentation, and training. Furthermore, three aspects of SSOP have met, namely the prevention of cross-contamination, food protection, and labelling. There are five elements have not fulfilled SSOP criterias, namely the security of water, surface hygiene, sanitation facilities, and employee health control and pest prevention. The weakest indicator for each GMP and SSOP implementation are supervision and employee's health control respectively. Therefore, it was necessary to increase the employee's knowledge, the addition of supporting facilities, and production supervision to improve the implementation of GMP, SSOP, and sustainable production.
Afficher plus [+] Moins [-]Evaluation of Plant Protection Practices of Garlic Growers in Gaziantep Province
2020
Aydın Atakan | Oktay Erdoğan | Hülya Özgönen Özkaya
This study was carried out to determine the plant protection practices of the garlic growers in Gaziantep province. For this purpose, a survey consisting of 20 questions and based on simple random sampling method was conducted with 81 growers in each of the districts of Araban, Oguzeli, Yavuzeli, Central, Nurdagı, Nizip and Karkamış districts in 2018. The data evaluated and expressed as percent ratio. According to the findings from the surveys, garlic growers stated that they preferred pesticide dealers suggestions for the selection and determination of doses of pesticides used in pests and diseases, they also stated that the price and expiration date were not an important factor in the selection of pesticides. In addition, it is found that growers avoid using the same pesticide continuously against same diseases and pests, they do not make any changes in there commended pesticide doses, pesticides leave residues on the products, they paid attention the time between the last application and harvest. It has been reported that the use of protective clothing and mask during the application by the growers is relative, they do not use pesticides as a mixture, they apply different processes to empty pesticide boxes. It was determined that garlic growers prefered chemical control and did not have knowledge about the concept of biopesticides.
Afficher plus [+] Moins [-]Investigation of Equipment Elements of the Niğde Ömer Halisdemir University Campus in Terms of Aesthetics and Functional Properties
2020
Orhun Soydan
In this study, equipment elements which have been used in Niğde Ömer Halisdemir University campus, were analysed considering various criteria in terms of landscape architecture. In this study, lighting and flooring elements, trash cans, sitting elements etc. were evaluated considering some criteria such as maintenance, design, ergonomics, etc. Within the scope of the study, it has been determined whether the equipment elements in the campus meet the people needs. There are insufficient number of seating elements in the campus, security problems occur due to the lack of lighting elements in certain places. The bus stops in the campus are sufficient numerically, and they are in suitable areas in terms of location. In addition, the number of telephone booths and the number of trash cans in the campus are insufficient. The designs of the equipment elements are similar, and equipment elements have traditional design. As paving elements, key paving stones are used on pedestrian roads, so that in some areas, collapses occur, so fall, snag, etc. on pedestrian roads. Finally, suggestions for using equipment elements in campus areas were developed.
Afficher plus [+] Moins [-]Determination of Pesticide Residues in Sour Cherry used in the Sour Fruit Juice Production in Tokat provinces
2020
Tarık Balkan | Kenan Kara
Sour cherry (Prunus cerasus L.) (Rosaceae) is a spring fruits. It is not preferred to be consumed as fresh because it is sour, but it is extremely beneficial for human health. In addition to fresh consumption, it is used in the production of fruit juice, syrup, jam, marmalade, cake and ice cream in the food industry. Sour cherry is grown widely in Tokat and 80-85% of the grown cherries are sold to juice factories. Producers mostly adopt chemical control against pests. In this respect, monitoring pesticide residues on sour cherry is extremely important. This study was carried out to determine the pesticide residue levels in samples taken from sour cherry production areas in Tokat province in 2020. The residue analyses were performed by using QuEChERS method and LC-MS / MS (Liquid Chromatography / Tandem Mass Spectrometer). According to the results, the pesticide residue levels were found below the maximum residue limits (MRL) given in Turkish Food Codex (TFC).
Afficher plus [+] Moins [-]Milk Yield, Reproduction and Milk Quality Characteristics of Simmental and Red-Holstein Cattle Raised at a Dairy Farm in Aydın Province: 2. Milk Quality
2020
Atakan Koç | Çağrı Arı
In this study, the milk quality characteristics of Simmental (SIM) and Red-Holstein (RH) breeds raised in a private farm in Aydın were determined. As milk quality properties, the percentages of protein (MPC), lactose (MLC), non-fat dry matter (NFDMC), total dry matter (TDMC), casein (MCC) contents and also milk urea nitrogen (MUN), oleic acid (OA), beta-hydroxybutyric acid (BHBA) and somatic cell count (SCC) were determined. The averages of MPC, MLC, NFDMC, TDMC, MCC, MUN, OA, BHBA and Log10SCC belonging to RH and SIM breeds are 3.38 ± 0.021% and 3.40 ± 0.015%, 4.86 ± 0.028% and 4.81 ± 0.019%, 9.09 ± 0.037 and 9.09 ± 0.025, 11.18 ± 0.069 and 11.23 ± 0.048, 2.50 ± 0.020 and 2.44 ± 0.014, 12.07 ± 0.200 mg / dl and 12.28 ± 0.138 mg / dl, 0.258 ± 0.0095 g / 100 g and 0.255 ± 0.0065 g / 100 g, 0.284 ± 0.138 mmol / L and 0.269 ± 0.0093 mmol / L, and 5.417 ± 0.0173 (261216 cells / ml) and 5.401 ± 0.0118 (251768 cells / ml) were found, respectively. The breed did not differ significantly in milk quality characteristics, except for MCC. The lower SCC level in milk and the suitable level of MUN for both breeds shows that the factors such as maintenance-feeding-housing-herd management in the farm were optimal in this herd.
Afficher plus [+] Moins [-]The Use of Rice Husk Waste in Foam Concrete Production
2020
Oğuzhan Yavuz Bayraktar
It is stated that concrete, which is the basic building block of most of the buildings built today, is the most consumed the construction material in the world after water. cement is that is the main ingredient of concrete, has significant share because of the cost of concrete, the use of various additives as a cement substitutes is the subject of many studies. However, it should firstly be determined to what extent the additives used to affect the concrete properties. In this study, it was tried to determine to what at level the use of the ash of rice husk as a cement substitute changed some concrete properties. Within the scope of the study, the usability of the raw form of rice husk as aggregate in concrete was evaluated and thus an effective method in the disposal of rice husk, which is a agricultural waste, was tried to be determined. The study results show that the addition of both ash of rice husk and rice husk aggregate significantly alter almost all properties of concrete. These changes are at different levels for different characteristics. As a result of the study, it was determined that as the amount of foam increased, the flow diameter increased, while the addition of rice husk decreased the flow diameter. It was determined that the addition of rice husk decreases the depth of water penetration depending on time, the porosity of the samples with the high level of rice husk addition increases, and the compressive and flexural strength decreases.
Afficher plus [+] Moins [-]Antioxidant, Antimicrobial Activity of Olive Leaf Extract and Oleuropein, Their Possibilities Usage in Foods
2020
Mustafa Bayram | Semra Topuz | Cemal Kaya
Olive leaves which is one of the by-products of olive tree cultivation and olive processing industry, have been used in traditional folk medicine for centuries. In recent studies, it has been determined that olive leaf has many bioactivities and these effects have been associated with high phenolic compound content. The most dominant phenolic compound of olive leaf is oleuropein, which is the heterosidic ester of elenolic acid and 3,4-dihydroxyphenylethanol. Therefore, some studies have been carried out for extracting high value added compounds from olive leaves in recent years. Antioxidant and antimicrobial activities of crude phenolic extract and oleuropein have been investigated. Moreover, some studies have been carried out to increase the possibility of using olive leaf extract and oleuropein in food industry due to increasing suspicion of side effects and toxicity of synthetic food preservatives. In this review, it was aimed to investigate phenolic compounds of olive leaf extract, phenolic compound extraction from olive leaf as well as antioxidant, antimicrobial activity of olive leaf extract and oleuropein and possibilities of use in foods.
Afficher plus [+] Moins [-]Hayvancılık İşletmelerinde Yemleme Robotu Operasyonu ve İşgücü Analizi
2020
Dursun Yenal Erzurumlu | Burak Şen
Günümüz koşullarında, hayvancılık işletmelerinin ve işletmecilerin karşılaştığı en büyük sorunlardan biri, işletme kapasitesini büyütmek için nitelikli ve güvenilir iş gücü temini ve bunun getirdiği maliyet sorunlarıdır. Buna paralel olarak yem hazırlama ve dağıtımı ile ilgili iş gücü, zaman ve maliyet sorunları da işletmeler için önem taşımaktadır. Hayvancılıkta yemleme işlemi günlük çalışmalar içerisinde önemli bir yer tutar. Kullanılan yem, bunun sevki ve idaresi hayvan sağlığını ve işletme verimini etkileyen en önemli faktörlerdendir. Bu çalışmada, durumun önemi göz önüne alındığında, yem hazırlama ve yem dağıtım ile ilgili iş gücü, zaman ve sürü yönetimi sorunları için çözüm olabilecek ve ülkemizde kullanımı yaygın olmayan ve henüz tanınmayan yemleme robotu hakkında operasyon bilgileri verilmiş, sürü yönetimi üzerine etkileri belirlenmiş ve geleneksel yem hazırlama ve dağıtma sistemleri ile karşılaştırılması sonucunda iş gücü ve zaman analizleri yapılmıştır. Özellikle yüksek kapasiteli işletmelerde, yemleme robotu aracılığıyla sağlanan otomasyonun klasik sistemler ile karşılaştırıldığında iş gücünden %75 oranında, zaman girdisi konusunda ise 13,75 kat tasarruf olanağı çıkan sonuçların en önemlilerindendir. Bunun yanı sıra modern işletmelerde kullanılan süt sağım robotu gibi diğer otomasyon içeren işler için de bir destek unsuru ve sürü yönetimi olarak bütünleyici bir etkisi olduğu çıkan diğer bir önemli sonuçtur.
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