خيارات البحث
النتائج 271 - 280 من 434
Optimisation of Plant-based Milk Formulation using Hazelnut, Sunflower Seed and Pumpkin Seed by Mixture Design
2020
Canan Kuru | İsmail Tontul
The preference for plant-based foods has been increased in recent years. Animal milk alternatives, named as plant-based milk, are produced from different oilseeds, nuts and cereals by a series of processing steps. These plant-based milk have different advantages over animal milk such as being lactose and cholesterol-free and having a high content of phenolics, minerals and unsaturated fatty acids. On the contrary, they generally have a lower content of proteins and low sensorial acceptability. To overcome these disadvantages, an optimisation by mixture design was carried out to produce high-quality plant-based milk in terms of chemical, physical and sensorial properties. The results showed that dry matter (7.7-11.5 g/100 mL) and ash (0.11-0.46 g/100 mL) content of the samples increased using a combination of sunflower seeds and pumpkin seeds. Total phenolic content and DPPH radical scavenging activity of plant-based milk were governed by the ratio of sunflower seeds. Hazelnut ratio in the samples had a positive impact on protein content (0.17-1.85 g/100 mL), whiteness index, serum stability and sensorial properties. The optimum formulation was determined as 66.3% hazelnut, 0% pumpkin seed and 33.7% sunflower seed. Verification studies showed a good agreement between theoretical and experimental responses.
اظهر المزيد [+] اقل [-]Arabidopsis thaliana Plants Overexpressing the Barley Nicotinamine Synthase1 (HvNAS1) Gene Show Tolerance to Iron Deficiency
2020
Emre Aksoy | Amir Maqbool | Buasimuhan Abudureyimu
Iron (Fe) is an important trace mineral for plant development, and plants grown in Fe deficiency experience yield losses due to the leaf chlorosis. In addition to agronomic measures that can be taken to minimize these losses, new plant genotypes can be developed effectively through genetic engineering. While dicots such as Arabidopsis thaliana use a reduction-based strategy to uptake high amounts of iron from the rhizosphere, the chelation strategy has evolved in Gramineous plants including barley (Hordeum vulgare). In this study, barley NICOTIANAMINE SYNTHASE1 (HvNAS1) gene, which is responsible for the production of nicotianamine that can complex with iron, was cloned and expressed at a constitutive high level in Arabidopsis plants. The expression levels of Arabidopsis genes encoding for the proteins involved in iron uptake increased together with HvNAS1 in the T3 Arabidopsis plants. Moreover, the root lengths, root and stem fresh weights, ferric chelate reductase enzyme activities of the plants also increased in the transgenic Arabidopsis plants under Fe deficiency. In addition, significant increases in iron and zinc levels were determined in the roots and shoots of transgenic Arabidopsis plants. As a result, transgenic Arabidopsis plants overexpressing the barley HvNAS1 gene can take up more iron from the rhizosphere and carry this iron to the shoots. This study demonstrates the power of genetic engineering to develop Arabidopsis plants overexpressing the HvNAS1 gene and therefore tolerate iron deficiency.
اظهر المزيد [+] اقل [-]Atık Gıda Geri Kazanım Sürecine Sistematik Bir Yaklaşım
2020
Nazlı Şerbet | Fatma Serab Onursal
Gıda atığı ve israfı problemi sadece ekonomik değil aynı zamanda ekolojik ve sosyolojik önemi açısından da incelenmesi gereken büyük bir sorundur. Doğal kaynakların azalması ve sebep olduğu kirlilik de göz önüne alındığında; gıda atıklarının etkin bir şekilde yönetiminin ve yeniden değerlendirilmesinin gerekliliğinin önemi dikkatlerden kaçmamalıdır. Araştırmalardaki veriler doğrultusunda açlığın giderek arttığı bilgisini desteklemektedir. Açlıkla savaşabilmek için acil önlemler alınmalı, atık gıdanın ya da israf edilen gıdanın geri kazanımı yolları araştırılmalıdır. Problem küresel boyutta sorumluluk gerektirmektedir. Çalışmanın amacı konu ile ilgili dikkat çekici verileri ve yapılan araştırmaları paylaşmak, gıda atık çeşitleri hakkında bilgiler sunmak, probleme çözüm getirilebilmesi için ilgili tüm paydaşların bir araya gelmesi hususunda farkındalık yaratabilmektir. Ayrıca kurulan modelin algoritması ile geliştirilen uygulanmanın bulguları paylaşılarak sonraki çalışmalara ışık tutulması hedeflenmiştir.
اظهر المزيد [+] اقل [-]Factors Affecting Consumers' Willingness to Pay for Geographically Indicated Products: The Case of Niksar Walnut
2020
Tayfun Çukur | Nuray Kızılaslan | Figen Çukur | Halil Kızılaslan
Undoubtedly, supply demand balance must be ensured for the development of geographically indications products. In order to increase the demand for geographically indications products, firstly, consumers should be aware of the geographically indications products and have information about the benefits and advantages of these products. Undoubtedly, as with other agricultural products, price is also an important issue for purchases in geographical indications products. Therefore, it was aimed to determine the factors affecting consumers' willingness to pay for geographical indications products in the Tokat province. For this purpose, face to face survey was conducted with 382 consumers. It was determined that 49,21% of the consumers who participated in the research wanted to pay more price for a product with a geographical indications label. According to the results of the probit analysis, a positive relation was found between awering that Niksar walnut is a geographical indications product and the willingness to pay for geographical indications products. However, a negative correlation was found between monthly food expenditure and tendency to pay for geographical indications products.
اظهر المزيد [+] اقل [-]Seleksiyonla Elde Edilmiş Bazı Ceviz Genotiplerinde SRAP Tekniği Kullanılarak Genetik Çeşitliliğin Belirlenmesi
2020
Mehmet Yaman | Ercan Yıldız | Hasan Pınar | Aydın Uzun | Ahmet Sümbül | Şule Alkan
Türkiye bitki çeşitliliği bakımından ender ülkeler arasındadır. Bu durumun bir örneği de ülke genelinde tohumdan yetişen ceviz çöğürlerindeki varyasyondur. Bu farklılığın ceviz ıslahında kullanılabilmesi için genetik materyalin ismine doğru olması ve aralarındaki genetik ilişkilerin belirlenmesi büyük önem taşımaktadır. Yapılan bu çalışmada Uşak ilinden seleksiyon ile elde edilmiş bazı ceviz genotiplerinde genetik çeşitliliğin moleküler markörler ile belirlenmesi amaçlanmıştır. Çalışmada 19 adet SRAP markör kombinasyonu kullanılmıştır. Bu markörlerden sayıları 2 ile 18 arasında değişen toplam 171 skorlanabilir bant elde edilmiş olup, bunların %77,2’si polimorfik olarak bulunmuştur. Markörlerden elde edilen bantların baz uzunlukları ise 100-1500 bp arasında değişim göstermiştir. Ceviz genotiplerine ait benzerlik oranı 0,21 – 0,85 arasında değişim göstermiştir. Çalışma sonucuna göre SRAP markör sisteminin ceviz genotipleri arasında genetik çeşitliliği belirlemede etkili şekilde kullanılabileceği tespit edilmiştir.
اظهر المزيد [+] اقل [-]Quantitative Constituents Analysis of Rice Mill Wastewater
2020
Motaharul Islam | Taslema Nasrin | Mosiur Rahman | Mofizul Islam | Tushar Kanti Ray
In the present world, climate change is a mass talked issue. Because of climate change, humans and animals are under the risk of threatening. The scientist has pointed out that main reasons for climate change are waste. Waste is generated from household chores and industries, factories etc. that are affecting the balance of the environment in many ways. This waste may be of various types such as solid, liquid, gaseous etc. Therefore, the study was taken to assess the chemical components contain in wastewater in Dinajpur Sadar, Bangladesh. This study was aimed to evaluate the chemical compositions of the generated wastewater including comparison with the groundwater. The data concerning to the rice mill waste water in Dinajpur, Bangladesh was obtained from individual field visits by interviewing with owner and worker in the rice mills. The wastewater samples were collected randomly from different rice mills. A laboratory experiment was performed to determine the chemical constituents of the wastewater sample. The wastewater contained of pH(6.11-6.18), EC(181.47-185.23 µScm-1), Na(26.19-28.89 mgl-1), Ca(45.41-51.26 mgl-1), Mg(47.12-49.8 mgl-10), K(184.7-191.3 mgl-1), TDS(45.94-47.96 mgl-1), HT(306.7-332.33 mgl-1), S(11.05-13.25 mgl-1), Cl-(522.45-526.182 mgl-1), HCO3-(5.12-6.99 mgl-1), DO(0.46-0.53 mgl-1), P(17.01-21.54 mgl-1). The obtained concentration of Ca, EC, pH, Na and HCO3- were within the reported range of groundwater in Dinajpur, Bangladesh. The concentration of Cl-, K, P, Mg and hardness in the wastewater were above the concentration of reported groundwater in Dinajpur, Bangladesh. On the other hand, the concentration of TDS in the wastewater was less than the reported concentration of groundwater in Dinajpur, Bangladesh.
اظهر المزيد [+] اقل [-]Characterization in Terms of Phenological Properties of Mung bean [Vigna radiata (L.) Wilczek] Genotypes / Local Populations in Isparta Conditions
2020
Ruziye Karaman | Muharrem Kaya
The aim of study was to determine the phenological characteristics of seed materials collected from mungbean cultivation provinces in our country. This experiment was conducted at the Department of Field Crops, Faculty of Agriculture, Isparta University of Applied Sciences (ISUBU). In study, 91 materials were collected in 2015 and seed reproduction and pre-observations were made this year. According to preliminary observation results, 50 mung bean genotypes selected together with 4 registered varieties were taken into field trials in 2017 and 2018. The experiments were conducted at an Augmented Design with five replications. As phenological properties of experiment were germination time, flowering time, podding time and vegetation time. As a result of the study, it was found that there are genotypes with earlier characteristics than registered varieties. 27 S 08 genotype was the earliest among genotypes. This genotype is thought to be promising in the future.
اظهر المزيد [+] اقل [-]Projections of Effects of Global Warming on Rainfall Regime in Some Provinces; Ankara, Rize, Aydın and Hakkâri Provinces Example
2020
Hayati Gönültaş | Halil Kızılaslan | Nuray Kızılaslan
Günümüz dünyasında küresel ısınmanın etkileri görülmeye başlamıştır. Küresel ısınma dünyayı olduğu gibi Türkiye’yi de etkilemektedir. Türkiye’de bölgesel olarak çok çeşitli olarak görülen iklimsel elemanlar illere göre de farklılıklar içermektedir. Bu çalışmada bu tür iklimsel değişiklerin illere göre değerlendirilmesini teminen Ankara, Rize, Aydın, Hakkâri illeri için yağışlarla ilgili olarak 10, 15 ve 20 ve 48 yıllık geleceğe yönelik projeksiyonlar yapılmıştır. İller değişik bölgelerden seçilerek bölgesel farklılıkların da durum değerlendirilmesine konu olması hedeflenmiştir. Analiz sonuçlarına göre ise 1971 ile 2018 yılları arası Ankara ilinde yıllık ortalama yağış 408,59 mm olurken, Rize’de 2262,76 mm, Aydın 634,33 mm ve Hakkâri ili yıllık yağış ortalaması ise 746,93 mm olarak gerçekleşmiştir. 2019-2066 yılları arası için yapılan projeksiyonlarda gerçekleşen verilerle karşılaştırıldığında küresel ısınmaya paralel olarak ortalama yıllık yağışlarda hemen hemen her ilde değişikliklerin olduğu görülmektedir. Ancak bu değişiklikler yağış miktarlarında aşırı değişiklikler anlamına gelmemektedir. Bu manada küresel ısınmanın etkisi yağış miktarlarındaki aşırı artışlar olarak değil, yağışların düzensiz ve baskın şeklinde olması şeklinde görülmektedir. Küresel ısınmanın yol açtığı bu düzensiz ve baskın yağışlar neticesinde tarımsal faaliyetler zarar göreceğinden dolayı gıda güvenliğinin sağlanmasının gerekliliği açısından tedbir alınması konusuna ışık tutması yönüyle bu çalışma önem arz etmektedir.
اظهر المزيد [+] اقل [-]Determination of Forage Yield, Quality and Mineral Content Mung Bean Growing as Second Crop
2020
Ruziye Karaman | Muharrem Kaya | Cengiz Türkay
It was carried out in Isparta University of Applied Sciences, Faculty of Agriculture Education, Research and Application Farm experiment fields in 2017. The aim of the study is determinate the effects of mung bean genotypes grown as second crops on forage yield, quality and mineral content. 02 G 06 and 70 S 01 mung bean genotypes were used as seed material in the study. The study was conducted to completely randomized block design in the factorial design with three replications. It was examined plant height, dry weight, ADF, NDF, ADL, TDN, hemicellulose, cellulose, relative feed value, metabolic energy properties and Mg, K, Ca, P, Fe, Cu, Mn and Zn contents in the study.According to obtained data, it was varied between plant height 6.45-53.78 cm, dry material ratio 18.42-23.82%, ADF content 15.21-20.99%, NDF content 30.99-39.87%, ADL content 4.39-7.0%, TDN 66.61-70.95%, hemicellulose 13.81-24.66%, cellulose 8.21-14.35%, relative feed value 179.8-228.9, metabolic energy 10.33-11.10 MJ kg-1, Mg content 0.34-0.46%, K content 2.39-3.41%, Ca content 2.39-2.84%, P content 0.30-0.38%, Fe content 202.67-586.0 ppm, Cu content 7.67-11.50 ppm, Mn content 121.75-245.0 ppm and Zn content 29.0-38.17 ppm. As a result, it is thought that mung beans can be grown as a second product after the grain harvest and be a quality forage.
اظهر المزيد [+] اقل [-]Micropropagation of Spathiphyllum with Temporary Immersion Bioreactor System
2020
Yıldız Aka Kaçar | Dicle Dönmez | Belgin Biçen | Mansur Hakan Erol | Özhan Şimsek | Yeşim Yalçın Mendi
Turkey has an advantageous position for the cultivation of ornamental plants for reasons such as favourable conditions, proximity to markets and cheap labour. In addition to classical production methods, biotechnological methods are used to meet the demand of Spathiphyllum, which is an indoor plant. In recent years, it has been started to be used in micropropagation of plants called temporary immersion system as well as classical tissue culture systems. Within the scope of the present study, micropropagation and rooting studies were carried out using classical tissue culture system and Plantform, one of the temporary immersion bioreactor systems, in the commercially important Spathiphyllum ‘Chico’ genotype. MS medium containing 1 mg L-1 6-Benzylaminopurine (BAP) was used in micropropagation experiments established in both systems, and Murashige and Skoog (MS) medium containing 1 mg L-1 Indole-3-butyric acid (IBA) was used in rooting experiments. The results of micropropagation and rooting have been found to be successful in both systems. As a result of the screening with Sequence-Related Amplified Polymorphism (SRAP) markers, it was determined that there were no genetic differences in the plants that were reproduced and rooted.
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