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Some Special Properties of Fermented Products with Cabbage Origin: Pickled Cabbage, Sauerkraut and Kimchi Полный текст
2019
Ceren Özer | Hatice Kalkan Yıldırım
Consumption of fermented products rich in antioxidants, anti-inflammatory, anti-diabetes, anti-obesity and anti-carcinogenic compounds is growing into a key strategy to fortify antioxidant defense system. Cabbage products produced by lactic-acid fermentation are chosen via their special microbiota. Considering these special medical properties of fermented-cabbage products as pickled cabbage, sauerkraut and kimchi were produced and evaluated. The data demonstrated that pickled cabbage (109.89±4.74 mg ascorbic acid/100 g d.w.) and its brine (208.14±17.29 mg ascorbic acid/100 g d.w.) exhibited the highest vitamin C content, followed by kimchi (77.42±2.87 mg ascorbic acid/100 g d.w.). The highest total phenolic content was detected in kimchi and sauerkraut with 869.64±70.16 and 438.257±25.05 mg gallic acid equivalents/100 g fresh weight (f.w.), respectively. 50% of the scavenging effect (EC50) values of free radical scavenging activity (DPPH) in kimchi 14.6 mg/ml, followed by sauerkraut (15.52 mg/ml) and pickled cabbage (18.88 mg/ml). Results demonstrated that fermented cabbage products have a great potential with content of bioactive compounds, high antioxidant features promising high beneficial impacts.
Показать больше [+] Меньше [-]Mısır Üretiminde Geleceğe Yönelik Beklenti Analizi Полный текст
2019
Merve Bozdemir | Zeki Bayramoğlu | Kemalettin Ağızan | Süheyla Ağızan
Türkiye’nin toplam tarım arazisi varlığında yıllar itibariyle azalış meydana gelmesine rağmen ekonomik olarak sulanabilir nitelikte arazilerin üretime kazandırılması sayesinde mısır üretim faaliyetleri Türkiye’de yaygınlaşmıştır. Sulama imkânının olduğu alanlarda mısır; işçilik maliyetlerinin az olması, birim alanda yüksek verim avantajı sağlaması ve ürün pazarının kolaylıkla erişilebilir olması nedeniyle üretim açısından popüler bir üründür. Sulama alanlarının artışına paralel olarak üretimi yaygınlaşan mısır; ekonomik değeri yüksek fakat su tüketim miktarı da yüksek bir üründür. Bu yönüyle çalışmada işletmecilerin tarımsal faaliyetlerin sürdürülebilirliğine, mısırın ekiminden hasadına kadar geçen süreçte karşılaştıkları problemlerin çözümüne, üretim ile ilgili beklentilerine yönelik analizlerin yapılması amaçlanmıştır. Çalışmada mısır üreten tarım işletmecilerinin girdi maliyetleri, depolama olanakları ve su kaynaklarının tüketimine yönelik gelecek endişesi taşıdıkları belirlenmiştir.
Показать больше [+] Меньше [-]Effect of Ultrasound Washing Process on the Quality Parameters of Fresh Strawberry during Cold Storage Полный текст
2019
Ahmet Görgüç | Esra Gençdağ | Seçil Tecimen | Sena Anakız | Senem Öztürk Köse | Hacı Halil Bıyık | Fatih Mehmet Yılmaz
Strawberry is one of the most preferred fruits all over the world due to its characteristic properties. Due to the morphological structure of fresh strawberries after harvesting, quality losses are observed during cold storage. Therefore, industrial washing of fresh strawberries is especially important for reducing microbial load and increasing shelf life. Demand for the new methods as an alternative to the chemicals used in industrial washing of fruits and vegetables is increasing due to consumer-related health concerns. Ultrasonic washing is a preferred innovative method in terms of reducing the microbial load and maintaining quality properties compared to chemical washing processes. In this study, fresh strawberries were washed with ultrasound (550 W/35 kHz) and peroxyacetic acid (40 ppm) after harvesting. The pH, total acidity, water soluble dry matter (brix), vitamin C, total phenolic content, antioxidant capacity, total viable, mold and yeast count analyses were performed in every two days during 14 days of cold storage of washed strawberries. Ultrasonic washing was found to be more effective in reducing microbial load and preserving bioactive properties of strawberries compared to other method due to its cavitation effect.
Показать больше [+] Меньше [-]Establishing the Flow Charts that can be Used in the Design of Irrigation Automation Systems Полный текст
2019
Selçuk Usta | Serpil Gençoğlan | Cafer Gençoğlan
Otomasyon, insan müdahalesine ihtiyaç duyulmadan çeşitli cihaz, sistem ve programların işletilmesini sağlayan mekanik, elektronik ve bilgisayar tabanlı bir teknolojidir. Sulama otomasyonu sistemi; çevre, su kaynakları ve üretim maliyeti dikkate alınarak daha az insan gücü, daha kontrollü ve daha kaliteli tarımsal üretim ile planlanmalıdır. Sulama programını sera, tarla ve bahçe bitkileri yetiştiriciliğinde uygulama becerisine sahip olmalıdır. Sulama otomasyonu sistemi bazı işlem basamakları takip edilerek oluşturulmaktadır. Bunlar; sulama programının hazırlanması, sistem bileşenlerinin seçilmesi, projenin hazırlanması, yazılımın hazırlanarak test edilmesi ve sistemin kurulmasıdır. Bu aşamalardan geçirilen sulama otomasyon sistemi, sulama suyunun etkin kullanımını sağlar, işçiliği azaltır, sulama programını izler ve üretim maliyetlerini azaltır. Bu çalışmada, bitki su tüketimine ve bitki kök bölgesindeki nem düzeyine duyarlı sulama otomasyonu sistemlerinin tasarımına yardımcı olabilecek iş akış şemaları oluşturulmuştur.
Показать больше [+] Меньше [-]Role of Different Cover Crops on DTPA-Extractable Micronutrients in an Apricot Orchard Полный текст
2019
Zeynep Demir | Nihat Tursun | Doğan Işık
This study was conducted to compare the effect of different cover crop treatments on DTPA-extractable micronutrients (Fe, Mn, Zn, Cu) and soil pH in an apricot orchard with clay texture located in Malatya province of Turkey. For this purpose, 5 different experimental groups (Vicia villosa Roth (VV), Vicia pannonica Crantz (VP), Vicia pannonica Crantz and Tritikale mixture (70% + 30%, respectively) (VPT), Phacelia tanacetifolia Benth (PT), Fagopyrum esculentum Moench (FE)) and 3 control groups (mechanically cultivated (MC), herbicide treatment (HC) and bare control plot (BC)) were used in the apricot orchards. The soils were sampled from 0–20 cm and 20-40 cm depths in each plot for soil analyses. According to the obtained results, while cover crop treatments reduced pH values of soils according to the bare control, the cover crops increased the Fe, Mn and Zn contents of soils in the 0-20 cm soil depth. The highest Ext-Fe, Mn and Zn contents were obtained in the VV (14.83mg kg-1, 8.42 mg kg-1, 1.03 mg kg-1, respectively) at the 0-20 cm soil depth. As compared to bare control, highest percent increases in Fe, Mn and Zn contents were determined in the VV 27.73%, 31.69% and 37.54%, respectively. The greatest significant negative correlations in the VV treatment were observed between pH and Fe (-0.985**), between pH and Mn (-0.945**) and between pH and Zn (-0.764*). The greatest significant negative correlations in the VP treatment were observed between pH and Fe (-0.948**), between pH and Mn (-0.928**) and between pH and Zn (-0.722*). It was concluded based on current findings that cover crops, especially Vicia villosa Roth and Vicia pannonica Crantz could be incorporated into cropping systems to improve micronutrients and to provide a sustainable soil management.
Показать больше [+] Меньше [-]Drought Resistance Indices for Screening of Potato (Solanum tuberosum L.) Genotypes Полный текст
2019
Zerihun Kebede Beyene | Firew Mekbib | Tesfaye Abebe | Asrat Asfaw
Drought Resistance Indices for Screening of Potato (Solanum tuberosum L.) Genotypes Полный текст
2019
Zerihun Kebede Beyene | Firew Mekbib | Tesfaye Abebe | Asrat Asfaw
In breeding for drought tolerance, availability of precise, cheap and easy to apply selection tool is critical. The aim of the present study was to identify potential screening tools that are useful for selection of drought tolerant genotypes in potato and select drought resistant potato genotypes. The study assessed sixty clones arranged in a 10×6 alpha lattice design with two replicates in a managed stress experiment. Two irrigation treatments were applied: fully watered non-stress and terminal drought, where the irrigation water supply to the crop was withheld after 50 % flowering to induce post-flowering stress. Stress indices were calculated based on tuber yield of genotypes in both stressed and non-stressed conditions. Identification of drought tolerant genotypes based on a single index was less informative as different indices identified different genotypes as drought tolerant. Hence, to determine the most desirable drought tolerant clones rank sum of indices, correlation, and bi-plot display of the principal component analysis was employed. The indices modified stress tolerance index based on non-stressed yield, Men productivity, Geometric mean productivity, Stress tolerance index, Harmonic mean, modified stress tolerance index based on stressed yield and Yield index exhibited strong association with both yield under stressed and non-stressed yield. These indices discriminated drought tolerant genotypes with higher tuber yielding potential both under stress and non-stress conditions. Genotypes CIP-398180.612, CIP-397069.5, and CIP-304371.67 were identified as drought tolerant. These genotypes could be potentially grown both under drought prone and potential environments and these selection attributes could help to develop climate resilient potato varieties.
Показать больше [+] Меньше [-]Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes Полный текст
2019
Beyene, Z.K. | Mekbib, Firew | Abebe, T. | Asfaw, A.
In breeding for drought tolerance, availability of precise, cheap and easy to apply selection tool is critical. The aim of the present study was to identify potential screening tools that are useful for selection of drought tolerant genotypes in potato and select drought resistant potato genotypes. The study assessed sixty clones arranged in a 10×6 alpha lattice design with two replicates in a managed stress experiment. Two irrigation treatments were applied: fully watered non-stress and terminal drought, where the irrigation water supply to the crop was withheld after 50 % flowering to induce post-flowering stress. Stress indices were calculated based on tuber yield of genotypes in both stressed and non-stressed conditions. Identification of drought tolerant genotypes based on a single index was less informative as different indices identified different genotypes as drought tolerant. Hence, to determine the most desirable drought tolerant clones rank sum of indices, correlation, and bi-plot display of the principal component analysis was employed. The indices modified stress tolerance index based on non-stressed yield, Men productivity, Geometric mean productivity, Stress tolerance index, Harmonic mean, modified stress tolerance index based on stressed yield and Yield index exhibited strong association with both yield under stressed and non-stressed yield. These indices discriminated drought tolerant genotypes with higher tuber yielding potential both under stress and non-stress conditions. Genotypes CIP-398180.612, CIP-397069.5, and CIP-304371.67 were identified as drought tolerant. These genotypes could be potentially grown both under drought prone and potential environments and these selection attributes could help to develop climate resilient potato varieties.
Показать больше [+] Меньше [-]Influence of Bacteria Isolated from Different Ecological Zone of Turkey on Maize Growth and Nutrient Uptake Полный текст
2019
Amer Abdulhadi Jawad | Ali Coşkan
The aim of this study was to find potential PGPR from sub-forest soil located different region soils of Turkey. Previous research indicated that the existing bacteria in arable soil are not capable to represent their individual performance most probably due to the competition. To overcome this phenomenon, soils are collected from sub-forest soil of Adana (Ad), Antalya (An), Hatay (Ha), Isparta (Is), Ordu (Or) and Sivas (Si) provinces. Experiment was carried out on the soil existing in Isparta in a greenhouse condition. Four fast growing bacteria colonies in tryptic soy (CASO) agar medium from each province were isolated and then, each isolate cultivated at liquid CASO broth until they reach 106 cfu ml-1. Experiments were carried out with a total of 24 bacteria including 6 province and 4 bacteria cultures from each region. The effects of those bacteria on biomass development and nutrient uptake of maize (Zea mays) were investigated. Sterile broth was applied treatment defined as control. The results revealed that 23 isolates out of 24 stimulated plants shoot dry weight. The highest value observed in the Or1 and Is4 isolates as 12.8 and 12.7 g plant-1 which around 77% higher than control whereas the lowest was in Or2 as 6.45 g plant-1. Plant nutrient concentrations were also influenced from inoculates where An1, Ad1, Or1, Is1 and Is3 significantly increased macro nutrients uptake where total N, available P, K, Ca and Mg were higher by 19%, 14%, 14%, 59% and 41% over the control, respectively. The Fe concentration was found 48% higher in Ad3 isolate. The Cu, Mn and Zn were the highest in Si3 as 43%, 30% and 31%, respectively. In general 4 out of 24 isolates were selected as promising PGPR for both plant development and nutrient uptake of maize.
Показать больше [+] Меньше [-]Assessing Fruit Tree Species Diversity in Home Garden Agro-Forestry and Their Role Supporting Local People’s Livelihoods in Burie District, Ethiopia Полный текст
2019
Alebachew Abebe Alemu | Habtamu Kiros | Eba Muluneh Sorecha
Clearing of natural ecosystems and land degradation due to unsustainable agricultural practices are becoming threats to the sustainability and productivity of agricultural systems in Burie town administrative, Amhara National Regional State, Ethiopia. The aim of this paper is therefore to assess the fruit tree species diversity in home garden agro-forestry and their role for supporting local people’s livelihoods in Burie town administration. Cultivated plants of 72 home gardens were surveyed and critical information were collected through questioner and focus group discussion from 12 households. Fruit tree species diversity (expressed in species richness and evenness) in home gardens in the study sites was determined using the Shannon-Weiner Index. The study basically considers the human consumption fruit trees species. A total of 18 fruit tree species represented by 9-genera and 7-families were recorded in home garden agro-forestry within the three wealth status (poor, medium, and rich) of the selected respondents commonly. From all wealth categories, the highest Shannon diversity index was recorded in rich and the lowest was in poor class category. Similarly, the highest species evenness was recorded in rich wealth category. However, there was no significant difference among rich and medium wealth categories for species richness. The study also revealed that age, land hold size, education status is the cause for species diversity in addition to the wealth status in the study area. Older respondents had significantly higher species richness and diversity than youngsters. It has been also found that almost all (100%) of the sampled households harvest and use at least four types of home garden products for various purposes. Lacks of management practices were the factors which puts the species diversity in question in the study area.
Показать больше [+] Меньше [-]Determination and Evaluation of Irrigation Water Quality in Areas Irrigated with Groundwater in the Southeast of Harran Plain Полный текст
2019
Azize Doğan Demir | Yasin Demir
Most of the non-irrigated areas in the southeast of the Harran Plain are irrigated by groundwater. The aim of this study is to determine the importance of 13 underground irrigation water sources operating in the agricultural areas of Ohali village in southeast of Harran Plain in Sanliurfa province in terms of some quality characteristics and irrigation. In this context, the waters belonging to 13 underground wells were analysed and examined in terms of irrigation water quality. According to the results of the analysis, the electrical conductivity of water samples was measured between 1127-4090 µS/cm. The SAR value of irrigation water was found to be between 1.05-3.41 and the %Na value was between 16.2% - 31.8%. In the evaluation made according to four different classification systems, in general, waters 6, 7, 8 and 9 were determined as the worst quality in all classification systems. These waters are described “unsuitable” irrigation water. Considering that the plants which have high water consumption such as cotton and corn are cultivated in the region, it is foreseen that if the necessary precautions are not taken, the salinity in the soil will increase and yield losses will be high. It is imperative that these areas, which cannot be irrigated within the scope of GAP irrigation project, be irrigated with clean water as soon as possible. However, an appropriate drainage system must be installed in the area.
Показать больше [+] Меньше [-]As a Thermal Process Contaminant Acrylamide: Formation Mechanisms and Strategies of Reducing Acrylamide Content in Meat Products Полный текст
2019
Hülya Serpil Kavuşan | Meltem Serdaroglu
Acrylamide is a carcinogenic and mutagenic compound which is formed by the oxidation of the acrolein compound or the as a result of reactions between reducing sugars and asparagine amino acids. Although acrylamide is mostly seen in carbohydrate-based foods, frying, steaming and baking processes lead to formation of acrylamide also in protein containing meat products with composite structure. Type and the cycle of frying oil, the precursors present in the system, the cooking method, temperature, time and storage can be listed as factors affecting acrylamide formation in meat products. The adverse effects of acrylamide on health create a need for application of acrylamide reduction strategies. These strategies encompass the reduction of the precursor substances, heat treatment time and temperature as much as possible, addition of various cations, enzymes, amino acids and antioxidants to the system and removal of the resulting acrylamide compound from the system. In this review, it was aimed to clarify the factors affecting the formation of acrylamide and strategies for reducing the amount of acrylamide in meat products.
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