Refinar búsqueda
Resultados 231-240 de 392
The Effect of Exchange Rate Volatility on Turkey’s Agricultural Foreign Trade Texto completo
2017
Güngör Karakaş | Gülistan Erdal
In this study, impact of the real effective exchange rate (REER) and its volatility (REERV) on Turkey's agricultural foreign trade was investigated. 25importantcountries in agricultural trade of Turkey and 1990-2012 periods were examined, and panel data analysis was used in this research. IGARCH model was applied to obtain for the REERV. Influence of the REER and REERV on Turkey's agricultural trade was analyzed whit FMOLS model both individual country and groups panel. According to the results of FMOLS model; It was determined that Turkey agricultural import (7.61%) and export (2.24%) were increased when the REER was risen about 1%. The agricultural import was decreased 18.83% in case the REERV was increased 1%. On the other hand, when the REERV was increased around 1%, there was no significantly relationship between agricultural export and REERV. As a result, it can be stated that REER and REERV were caused an imbalance on Turkey's agricultural foreign trade. Agricultural producers and industrialists are often adversely affected by the REERV. For these reasons, it is important to take protective measures for them.
Mostrar más [+] Menos [-]Sıcaklık Kontrollü Mikrodalga Kurutma Yönteminin Alıç (Crataegusspp. L.) Meyvesinin Kuruma Karakteristikleri ve Renk Değerleri Üzerine Etkisi Texto completo
2017
Hakan Polatcı | Muhammed Taşova
Bu çalışmada alıç meyvesi sıcaklık kontrollü bir mikrodalga kurutucuda kurutularak kuruma süresi, renk değeri ve ürünün kuruma eğrilerini en iyi tahmin eden matematiksel model belirlenmiştir. Ürünler tasarlanan sıcaklık kontrollü mikrodalga kurutucuda 50, 60 ve 70ºC sıcaklıklarda kurutulmuştur. Kuruma süreleri 50, 60 ve 70ºC kurutma sıcaklıkları için sırasıyla 129, 66, ve 45 dakika olarak belirlenmiştir. En kısa kuruma süresi 70ºC kurutma sıcaklığında olurken en uzun kuruma ise 50ºC kurutma sıcaklığında olmuştur. Kuruma eğrilerini tahmin etmek için ince tabakalı kurutma modellerinden Yağcıoğlu, Midilli- Küçük ve Page matematiksel modelleri kullanılmıştır. Kuruma eğrilerini en iyi tahmin eden matematiksel modelin Midilli-Küçük modeli olduğu belirlenmiştir. Ayrıca taze ve kurutulmuş alıç meyvesinin kalite kriteri olarak renk değerleri araştırılmıştır. L parlaklık ve a kırmızılık renk değerleri açısından her üç kurutma sıcaklığında da kurutulan ürünler ile taze ürün arasında istatistiki açıdan bir farklılık oluşmuştur. b sarılık değeri açısından ise istatistiki olarak 50 ve 70ºC sıcaklıkta kurutulan örneklerle taze ürün arasında bir farklılık oluşmamıştır. Taze ürünlere ait hesaplanarak belirlenen kroma, hue açısı ve esmerleşme değerleri ile kurutulan ürünlere ait kroma ve esmerleşme değerleri arasında ise rakamsal olarak büyük bir farklılık yoktur. Ancak taze ürünün kroma ve kahverengilik değerlerine en yakın değerler 70ºC kurutma sıcaklığında yapılan kurutma işleminde belirlenmiştir.
Mostrar más [+] Menos [-]Organik Asitler ve Su Ürünleri Yetiştiriciliğinde Kullanımı Texto completo
2017
Ferbal Özkan Yılmaz | Arzu Özlüer Hunt
Organik Asitler ve Su Ürünleri Yetiştiriciliğinde Kullanımı Texto completo
2017
Ferbal Özkan Yılmaz | Arzu Özlüer Hunt
Organik asitlerin su ürünleri yetiştiriciliğinde, fonksiyonel yem katkı maddeleri olarak kullanılmasının öngörülebilir gelecekte belirgin bir şekilde artacağı düşünülmektedir. Dünya su ürünleri yetiştiriciliğinin sürekli genişlemesi, büyük bir pazar potansiyeli oluşturmaktadır. Bununla birlikte küresel ısınmanın bir sonucu olarak, su ürünleri yetiştiriciliğinde hastalık salgınlarında artma tehlikesi, önemli bir problem olarak ortaya çıkabilecektir. Birçok ülkede antibiyotik kullanımına ilişkin yasaklar veya kısıtlama uygulamaları bulunmaktadır. Su ürünleri yetiştiriciliğinde, antibiyotiklere karşı uygulanabilir bir alternatif olarak organik asitlerin kullanımının uygunluğunu, yapılan çalışmalar ile ortaya konulmaktadır. Organik asitler, antimikrobiyal özelliklerinden dolayı zararlı bakterilerin çoğalmasını engelleyerek, hayvanların gastrointestinal sisteminde yararlı bakterilerin büyümesini teşvik ederek, hayvanların sağlığını iyileştirme özelliklerini göstermektedirler. Yapılan çalışmalar, organik asitlerin fonksiyonel yem katkı maddeleri olarak, su ürünleri yetiştiriciliği endüstrisinde sürdürülebilir bir sağlık yönetimi programının bir parçası olarak kullanılabilirliğini ortaya koymaktadır.
Mostrar más [+] Menos [-]Caracterización de semillas de lupino (Lupinus mutabilis) sembrado en los Andes de Colombia Texto completo
2010
Ortega-David Eduar | Zamora-Burbano Ángel | Rodríguez Aida | David Arturo
En este trabajo se identificaron las propiedades físicas, composicionales y fisicoquímicas de la semilla de Lupino (Lupinus mutabilis) cultivado en Nariño (Andes de Colombia). Su composición se determinó realizando análisis proximales de semilla completa, tegumento y cotiledones. Además se determinó el contenido de minerales y su composición elemental. Se estableció cuantitativamente el contenido de alcaloides presentes y su perfil composicional. Se determinaron propiedades físicas como la forma y el tamaño de la semilla. Se determinaron las propiedades fisicoquímicas como la capacidad de retención de agua y el pH. Las cantidades de nutrientes de la semilla son menores que los valores reportados en la literatura. Se presenta una variación en cuanto al perfil de alcaloides, siendo la esparteína la segunda sustancia de mayor presencia. La hidratación de la semilla conduce a un incremento de 1.72 veces su tamaño original. Se puede sugerir que la proteína posee afinidad hidrofílica evidenciada por la elevada capacidad de retención de agua de la semilla. La identificación de estas propiedades permite reconocer el potencial de la semilla para su futuro aprovechamiento.
Mostrar más [+] Menos [-]Caracterización de semillas de lupino (Lupinus mutabilis) sembrado en los Andes de Colombia Texto completo
2010
Ortega-David, Eduar(Universidad del Valle Escuela de Ingeniería de Alimentos, Grupo de Investgacion GIPAB) | Rodríguez, Aida(Universidad del Valle Escuela de Ingeniería de Alimentos, Grupo de Investgacion GIPAB) | David, Arturo(Universidad de Nariño Asociacion para la Investigación y el Desarrollo Tecnológico ASINDETEC) | Zamora-Burbano, �_ngel(Universidad de Nariño Asociacion para la Investigación y el Desarrollo Tecnológico ASINDETEC)
En este trabajo se identificaron las propiedades físicas, composicionales y fisicoquímicas de la semilla de Lupino (Lupinus mutabilis) cultivado en Nariño (Andes de Colombia). Su composición se determinó realizando análisis proximales de semilla completa, tegumento y cotiledones. Además se determinó el contenido de minerales y su composición elemental. Se estableció cuantitativamente el contenido de alcaloides presentes y su perfil composicional. Se determinaron propiedades físicas como la forma y el tamaño de la semilla. Se determinaron las propiedades fisicoquímicas como la capacidad de retención de agua y el pH. Las cantidades de nutrientes de la semilla son menores que los valores reportados en la literatura. Se presenta una variación en cuanto al perfil de alcaloides, siendo la esparteína la segunda sustancia de mayor presencia. La hidratación de la semilla conduce a un incremento de 1.72 veces su tamaño original. Se puede sugerir que la proteína posee afinidad hidrofílica evidenciada por la elevada capacidad de retención de agua de la semilla. La identificación de estas propiedades permite reconocer el potencial de la semilla para su futuro aprovechamiento. | In this work was identified the physical, compositional and physicochemical properties of Andean Lupin seed (Lupinus mutabilis) grown in the Andes of Nariño. The proximal composition analyses were performed to the whole seed, cotyledons and seed coat. In addition, it was determined the content of minerals and their elemental composition. It was established quantitatively the content of alkaloids and its compositional profile. Physical properties were determined such as the size and shape. Physicochemical properties were determined as water holding capacity and pH. The nutritional components of the seed are less with the values reported in the literature, for seeds from elsewhere. It presents a variation in the profile of alkaloids being the alkaloid spartein second major presence. The seed hidratation achieves an increasing of 1.72 times its original size. It can be suggested that protein has hydrophilic affinity as evidenced by the high water retention capacity. The identification of these properties allows recognize the potential use of this natural resource.
Mostrar más [+] Menos [-]Farklı Bağlardan Toplanan Yaş Üzümler ile Bunların İki Farklı Yöntemle Gerçekleştirilen Kurutma İşlemleri Sonrasındaki Pestisit Kalıntılarının Tespit Edilerek Karşılaştırılması Texto completo
2017
Orhan Dinçay | Gamze İsfendiyaroğlu | Alev Aydın
Ekonomik bir dayandırma yöntemi olan kurutma; yaş ürünlerdeki serbest suyu uzaklaştırarak ürünlerde meydana gelebilecek biyokimyasal reaksiyonların yavaşlatılmasıdır. Dünya’da bandırılmış (potasalı) ve bandırılmamış (naturel) olmak üzere başlıca iki tip çekirdeksiz kuru üzüm üretilmektedir. Bu çalışmada 2015 yılında Alaşehir (Manisa) bölgesinde sultaniye üzümü yetiştirilen 6 farklı bağdan hasat döneminde yaş üzümler toplanmıştır. Bu üzümlerin bir kısmı potasalı ve naturel olarak kurutulmuştur. Hem yaş üzümlerde hem de iki farklı şekilde kurutulan kuru üzümlerde pestisit analizleri gerçekleştirilmiştir. Analizler sonucunda her bağda en az 8 adet pestisit etken maddesi tespit edilmiştir. Bu bağlardan iki tanesinin yaş üzümünde, üç tanesinin de kuru üzümünde MRL (Maximum Residue Limit, Maksimum kalıntı miktarı) değerlerini aşmış en az bir adet pestisit etken maddesi bulunmaktadır. Pestisit etken maddelerinin tamamına yakını üzümler kurutulduğu zaman konsantrasyonlarında artış göstermiştir. Ayrıca potasalı kurutulan kuru üzümlerde natural kurutulan kuru üzümlere kıyasla daha yüksek konsantrasyonlarda pestisitler tespit edilmiştir.
Mostrar más [+] Menos [-]Optimization of Solid Phase Microextraction Conditions for Volatile Components of Foods by Using Response Surface Methodology Texto completo
2017
Ceyda Dadalı | Yeşim Elmacı Elmacı
Optimization of Solid Phase Microextraction Conditions for Volatile Components of Foods by Using Response Surface Methodology Texto completo
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.
Mostrar más [+] Menos [-]PREVALENCE, ECONOMIC IMPACT AND THERAPEUTIC EFFICACY IN ACUTE INFECTIOUS PODODERMATITIS IN SHEEP Texto completo
2023
Grecu, Marian | Tanase, Oana | Mădălina Elena HENEA, Mădălina Elena | Nastasa, Valentin | Rimbu, Cristina Mihaela
This study assessed seasonal incidence, economic losses, the efficacy of therapeutic protocols, the recovery time of affected animals and specific prophylactic measures applied to sheep with acute infectious pododermatitis. The studies were conducted over a period of 12 months in 3 different sheep farms from private units in the same area. The results of the study showed an increased incidence of the disease in all 3 farms, with an average of 26.94% of the sheep flock. The incidence of the disease was increased in the months of April-May-June-July and September-October (30%), when there were heavy rains. The high morbidity led to economic losses through the decrease in milk production by approximately 30% and the decrease in the weight of the sheep by 10.58% (4.2 kg) of their normal weight. The therapeutic protocol applied locally as well as parenterally, combined with a foot bath with 10% zinc sulphate solution, were effective in treating acute infectious pododermatitis of sheep. The average recovery time (days) was approximately the same in the three groups of sheep (5.25 ± 0.68 days for cases with moderate diseases and 10.2 ± 0.22 for cases with severe diseases).
Mostrar más [+] Menos [-]The Use of Computer-Based Image Analysis on Colour Determination of Liquid Smoked Trout (Oncorhynchus mykiss) Treated with Different Dry Salt-Sugar Mixtures Texto completo
2017
Zayde Ayvaz | Fikret Çakır | Hatice Gündüz | Mehmet Erdağ
The Use of Computer-Based Image Analysis on Colour Determination of Liquid Smoked Trout (Oncorhynchus mykiss) Treated with Different Dry Salt-Sugar Mixtures Texto completo
2017
Zayde Ayvaz | Fikret Çakır | Hatice Gündüz | Mehmet Erdağ
In this study, the changes in % yield, dry matter, ash, lipid, protein content, water activity, pH, total volatile basic nitrogen (TVB-N), total viable aerobic count (TVC), yeast and mold count, lactic acid bacteria (LAB), colour parameters and sensorial properties were analysed in rainbow trout (Oncorhynchus mykiss) exposed to either salt only or two different salt-sugar mixture treatments. For this purpose, three groups were formed. For the first, second and third group, fish samples were treated with only salt (S), salt and sugar blend (WS) and salt and brown sugar blend (BS), respectively. Then, the samples were vacuum packaged and stored at +4°C for 3 months. Overall, salt treatments, liquid smoking and cooking as well as storage generally caused remarkable changes in the parameters of interest. However, except for the sensory analysis, not a remarkable change was seen when the three groups were compared among themselves. The results of experienced panelists suggested that group BS samples had superior appearance, taste, odor and texture and therefore expected to be more preferred by the potential consumers.
Mostrar más [+] Menos [-]EFFECT OF MOISTURE CONTENTS AND COMPRESSION AXES ON SOME PHYSICAL AND MECHANICAL PROPERTIES OF DIOCLEA REFLEXA SEED Texto completo
2023
Olukayode, Olakunle | Alade, Eyitope Israel | Oyelami, Seun
Interest in unconventional seeds such as Dioclea reflexa is growing in the tropical regions, with the potential for utilisation as food or industrial materials. Researchers confirmed that Dioclea reflexa seed has the potential for clinical use, use as a food source, and as industrial raw material. This research studies the effect of moisture content on the physical properties of Dioclea reflexa seed and the effect of moisture content and compression axes its mechanical properties. Standards methods were used to determine the physical properties, while the mechanical properties were derived from force-deformation curves for the moisture content range 4.8 to 12.1% (wet basis). The mean values of the seed’s length increased by 3.55% (from 31.01 mm), the width increased by 4.13% (from 26.64 mm), and the thickness decreased by 2.48% (from 21.75 mm). The geometric mean diameter increased by 1.68%, surface area increased by 3.68%, sphericity decreased by 1.54% and individual seed mass increased by 10.46%. The physical properties exhibit linear relationships with moisture content. Rupture force increased by 75% (from 0.80 kN) for loading along the major axis; by 84% (from 0.72 kN) for the intermediate axis; and by 41% (from 0.78 kN) for the minor axis. Rupture energy increased from 0.18 J to 1.25 J for compression along the major axis, from 0.087 J to 0.43 J for the intermediate axis, and from 0.080 J to 0.18 J for the minor axis. The mechanical properties were found to be moisture content and loading orientation-dependent. Reducing moisture content reduced both the force and the energy required to rupture the seeds. The data generated will be useful in the design of processing machinery and storage facilities for the seeds.
Mostrar más [+] Menos [-]Research on Possible Effects of Acrylamide and Vitamin E Administered to Pregnant Rats on Placenta Tissue Texto completo
2017
Mehmet Erman Erdemli | Eyüp Altınöz | Zeynep Aksungur | Zümrüt Doğan | Harika Gözükara Bağ | Yusuf Türköz
Research on Possible Effects of Acrylamide and Vitamin E Administered to Pregnant Rats on Placenta Tissue Texto completo
2017
Mehmet Erman Erdemli | Eyüp Altınöz | Zeynep Aksungur | Zümrüt Doğan | Harika Gözükara Bağ | Yusuf Türköz
Investigate the changes that occur in the placenta tissues of pregnant rats that were administered acrylamide (AA) and vitamin E as a protective agent during pregnancy. Thirty rats that were proven positive for pregnancy with vaginal smear test were randomly distributed into control, corn oil, vitamin E, acrylamide and vitamin E + acrylamide groups. Pregnant rats were decapitated on the 20th day of the experiment. Malondialdehyde (MDA), reduced glutathione (GSH), total antioxidant capacity (TAS), total oxidant capacity (TOS) and Xanthine oxidase (XO) levels were measured in placenta tissues. It was determined that acrylamide application during pregnancy statistically significantly increased MDA, TOS and XO levels and reduced GSH and TAS levels in the placenta tissue of pregnant rats when compared to all other groups, and GAS and TAS levels statistically significantly increased in vitamin E administered group when compared to all other groups and TOS and XO levels were decreased to control group levels. It was observed that orally administered AA changed the antioxidant / oxidant equilibrium favoring the oxidants by increasing MDA, XO and TOS levels in pregnant rats and caused oxidative stress, while vitamin E administration returned the antioxidant / oxidant equilibrium back to normal levels, preventing oxidative stress induced toxicity.
Mostrar más [+] Menos [-]CHARACTERISATION OF THE PARASITE LOAD OF RIVER BISTRITA TRIBUTARIES IN THE DORNELOR BASIN Texto completo
2022
Voloseniuc, Ionela | Imre, Kálmán | Miron, Liviu Dan
Dornelor Basin is characterised by numerous high quality water sources, which is proven by the fact that the main mineral waters on the Romanian market come from this area. The study aimed to provide data on the occurrence and human infective potential of Giardia and Cryptosporidium, as the most important water-borne parasites, from Bistrița river tributaries of Dornelor basin, North-Eastern Romania. Water samples were collected from 10 tributaries of the Bistrita river, from the level of sampling stations set upstream and downstream from the anthropic communities. The harvested water samples were further processed using nonmolecular methods in order to isolate (oo)cysts. Subsequently, the isolated Cryptosporidium and Giardia (oo)ccyst were molecularly characterized through PCR and genomic sequencing, which led to the identification of Giardia in order to identify them at species level. The outcomes revealed the fact that the waters of the emissaries under study have a low parasite load and that, upstream from the human settlements, the water is highly pure when related to the protozoa under study. The increased load of Giardia spp. and Cryptosporidium spp.
Mostrar más [+] Menos [-]Yield and Quality Features of Buckwheat-Soybean Mixtures in Organic Agricultural Conditions Texto completo
2017
Mustafa Sürmen | Emre Kara
Yield and Quality Features of Buckwheat-Soybean Mixtures in Organic Agricultural Conditions Texto completo
2017
Mustafa Sürmen | Emre Kara
This study was carried out during the summer of 2014 to determine alternative quality forage sources that could be grown in the Aydın ecological conditions. In the study, effects of 3 different mixtures and 2 pure species (100% Buckwheat, 25% Buckwheat -75% Soybean, 50% Buckwheat -5 0% Soybean, 75% Buckwheat - 25% Soybean, 100% Soybean) and 2 different harvesting times (50%-100% flowering/buckwheat) on yield and quality characteristics were investigated. According to measurements, the highest average herbage yield was obtained from 75% Buckwheat-25% Soybean application (3100 kg/da) at 2nd harvest time. When the average of hay yield was examined, the results were similar to herbage yield. When ADF and NDF were examined, the highest values were seen at the 2nd harvest. When the crude protein ratios were examined, it was found that they decreased at the 2nd harvesting time and the highest value was determined at 100% soybean application at the 1st harvesting time (21.08%). When Digestible Dry Matter (DDM) and Relative Feed Value (RFV) were examined, the highest values were determined in 100%Soybean applications at first harvest time and when the mixture applications were examined, the highest values were determined to be 75% Buckwheat - 25% Soybean application. As a result of the study, it was determined that the yields obtained at the 2nd harvest time were higher but the forage quality decreased. When the mixtures were examined, it was determined that the mixture having the highest roughage value was 75% buckwheat + 25% soybean application. In this study, the buckwheat which have short vegetation and good quality and the soybean, which is infront of with high quality, mixtures were examined. It has also been found that these mixtures may be important for obtaining high-quality forage in the short and intermediate periods.
Mostrar más [+] Menos [-]Extracción y caracterización de aceite de semillas de zapallo Texto completo
2009
Ortiz Grisales, Sanín(Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias) | Pasos López, Sonia Carolina(Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias) | Rivas Abadía, Ximena Constanza(Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias) | Valdés Restrepo, Magda Piedad(Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias) | Vallejo Cabrera, ¹Franco Alirio(Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias)
Se seleccionaron 79 introducciones de zapallo (Cucurbita moschata Duch) teniendo en cuenta el contenido de extracto etéreo (EE) de las semillas. El EE fue estable física y químicamente, con propiedades organolépticas óptimas de aceite comestible, no presentó características de rancidez; aceite semisecante (122.90 mg/g de KOH.); índice de acidez 3.25 mg/g de KOH; la prueba presuntiva de yodo supone presencia de polinsaturación y sin formación de cristales. La composición de ácidos grasos mostró: palmítico C16:0 (25.11 - 36.94%); esteárico C18:0 (10.79 - 13.37%); linoleíco C18:2 (48.23 - 62.41%); linolénico C18:3 (0.66%) y araquídico C20:0 (0.53 - 0.78%). El aceite de semilla de zapallo contiene 55.28% de ácidos grasos insaturados con una cantidad apreciable de linoleíco (55.11%). La torta de semilla presentó proteína (51.11 ± 0.95%) y energía (4604. 66 ± 134.08 kcal/kg). | In accordance with of ethereal extract (EE) of seeds 79 varieties of squash was selected. The EE was physical and chemically stable, with good organoleptic properties of edible oil: no rancidity character was present; saponification index was 122.90 mg KOH/g characteristics of semi dried oil; acid index was 3.25 mg KOH/gm typical of edible oil. The iodine presumptive test revealed the presence of polyunsaturation and the absence of crystals. The composition of fatty acid revealed: Palmitic acid C16:0 (25.11 - 36.94%); Stearic acid C18:0 (10.79 - 13.37%); linoleic acid C18:2 (48.23 - 62.41%); linolenic acid C18:3 (0.66%); arachidic acid C20:0 (0.53 - 0.78%). The extracted oil from squash seeds contained 55.28% of unsaturated fatty acid with an appreciable amount of linoleic acid (55.11%). The squash oilseed cake presented a protein (51.11 ± 0.95%) and energy (4604. 66 ± 134.08 kcal/kg).
Mostrar más [+] Menos [-]Extracción y caracterización de aceite de semillas de zapallo Texto completo
2009
Valdés Restrepo Magda Piedad | Vallejo Cabrera Franco Alirio | Ortiz Grisales Sanín | Pasos López Sonia Carolina | Rivas Abadía Ximena Constanza
Se seleccionaron 79 introducciones de zapallo (Cucurbita moschata Duch) teniendo en cuenta el contenido de extracto etéreo (EE) de las semillas. El EE fue estable física y químicamente, con propiedades organolépticas óptimas de aceite comestible, no presentó características de rancidez; aceite semisecante (122.90 mg/g de KOH.); índice de acidez 3.25 mg/g de KOH; la prueba presuntiva de yodo supone presencia de polinsaturación y sin formación de cristales. La composición de ácidos grasos mostró: palmítico C16:0 (25.11 – 36.94%); esteárico C18:0 (10.79 – 13.37%); linoleíco C18:2 (48.23 – 62.41%); linolénico C18:3 (0.66%) y araquídico C20:0 (0.53 – 0.78%). El aceite de semilla de zapallo contiene 55.28% de ácidos grasos insaturados con una cantidad apreciable de linoleíco (55.11%). La torta de semilla presentó proteína (51.11 ± 0.95%) y energía (4604. 66 ± 134.08 kcal/kg)
Mostrar más [+] Menos [-]Antibiotic Resistance Case Study: Enterobacteriaceae isolated from Batlama Creek in Giresun, Turkey Texto completo
2017
Tamer Akkan
Antibiotic Resistance Case Study: Enterobacteriaceae isolated from Batlama Creek in Giresun, Turkey Texto completo
2017
Tamer Akkan
Enterobacteriaceae were isolated from the freshwater of the Batlama Creek in Giresun, to measure their resistance levels against to antibiotics. A total of 9 antibiotics disc were applied for the resistance test. Antibiotic resistances of all isolates were at percentages for ampicillin (75%), erythromycin (64%), nalidixic acid (48%), tetracycline (39%), amikacin (34%), cefazolin and chloramphenicol (33%), cefuroxime (32%) and cefotaxime (23%), respectively. The highest resistant strain was resistant against to 9 antibiotics, while the weak resistance of 16 isolates were sensitive to all antibiotics. Moreover, Multiple antibiotic resistance index values were found to be higher than 0.2 for 77% of all isolates. High resistances of examined bacteria against to antibiotics indicated a dense and multisource pollution in the Batlama Creek. Consequently, a need for good surveillance programs to monitor antimicrobial resistance patterns in surface water bodies.
Mostrar más [+] Menos [-]Análisis de crecimiento de canavalia en zona plana del Valle del Cauca Texto completo
2005
Ortiz, José J | Reyes, Paula A. | Ortiz G., Sanín | Mejía, Sara | Cortés R., Harry
El análisis se realizó en condiciones de campo, en dos localidades (Candelaria y Palmira), determinando los componentes de rendimiento (kg), altura (cm) y fenología (dds/floración). Se empleó un diseño completamente al azar con cinco repeticiones. El crecimiento de C. ensiformis no mostró diferencias entre las localidades evaluadas. El desempeño fisiológico en la acumulación de fotosintatos se concentró en mayor proporción en el órgano vertedero “frutoâ€?, que representa entre el 60 y 75% de MS total. La dinámica de acumulación de MS mostró correlación en los índices medidos (TCC, TCR, TAN, IAF). Abstract Analysis of growth of canavalia in the plane zone of Valle del Cauca. Under conditions of field, in two localities (Candelaria and palmira), determining the components of yield (Kg), height (cm) and fenology (d/flower). A design at random with five (5) repetitions was used completely. The growth of Canavalia ensiformis does not show differences enters the evaluated localities. The physiological performance in the accumulation of photosintates is it accumulated in greater proportion in the organ garbage dump “fruitâ€?, that represents between 60 and 75% of dry matter. The dynamics of accumulation of MS shows correlation in the measured indices (NAR, LAI, RGR). Key words: Canavalia ensiformis, biological analysis, phenology, yield components.
Mostrar más [+] Menos [-]Evaluating Some Turkish Originated Oat Genotypes for Some Agronomic Traits Texto completo
2017
Ziya Dumlupınar | Ali Tekin | Sevgi Herek | Abdulkadir Tanrıkulu | Tevrican Dokuyucu | Aydın Akkaya
Evaluating Some Turkish Originated Oat Genotypes for Some Agronomic Traits Texto completo
2017
Ziya Dumlupınar | Ali Tekin | Sevgi Herek | Abdulkadir Tanrıkulu | Tevrican Dokuyucu | Aydın Akkaya
In this study 384 Turkish originated oat genotypes obtained from different gene banks, were characterized and evaluated for agronomical traits with four commercial cultivars (Checota, Sebat, Faikbey and Seydişehir) under augmented experiment design for 2012-2013 and 2013-2014 cropping years. Oat landraces were evaluated for stem diameter (SD), plant height (PH), panicle length (PL), vegetative period (VP), grain filling period (GFP), days to maturity (DM), grain number per panicle (GNP), grain weight per panicle (GWP), thousand kernel weight (TKW), lodging (LOD), barley yellow dwarf virus (BYDV) and single row yield (SRY) under Kahramanmaraş conditions. According to the results of field trail for two years, differences of genotypes were significant for SD, PH, PL, VP, DM, TKW and SRY. However, the components such as SD, PL, VP, GFP, DM, GNP, GWP, TKW and SRY were significantly changed for the years and year x genotype interactions were also significant for PL, VP, DM, TKW and SRY. The landraces performed better than the commercial ones for the most of the evaluated traits. The SRW ranged between 4.65 g (TL444) to 202.1 g (TL614). Moreover, the other genotypes with the higher SRY were TL708, TL714, TL734 and TL703 genotypes with 167.85, 160.25, 153.90 and 149.7 g SRY, respectively.
Mostrar más [+] Menos [-]Evaluation of dry matter yield and essential oil production in 84 accessions of Tanacetum polycephalum Sch.Bip. through multivariate analyses | Evaluación del rendimiento de materia seca y producción de aceites esenciales en 84 accesiones de Tanacetum polycephalum Sch.Bip. a través de análisis multivariado Texto completo
2018
Alizadeh, Mohammad Ali | Zehtabchi, Fatemeh | Jafari, Ali Ashraf
In order to investigate diversity and explain the relationships of essential oil yield with morphological traits, 84 populations T. polycephalum, were sown in the field using randomized complete blocks design (RCBD) with three replicates in Research Institute of Forest and Rangeland, Tehran, Iran in 2013-2014. Data were collected for flowering date, growth degree days (GDD), stem number, plant height, dry matter (DM) yield, essential oil percentage, and essential oil yield. The relationships among traits were determined using correlation, regression and factor analysis. The genetic distance and genotype classification were determined using cluster analysis. DM yield was positively correlated with plant height, canopy cover, stem number and oil yield (ρ<0.01), whereas oil% was negatively correlated with plant height and stem number (ρ<0.05). Result of stepwise regression in which essential oil yield were considered as dependent variable showed that essential oil%, and DM yield accounted for 39.95 and 47.75%, of the total variations in essential oil production, respectively. In factor analysis, the Eigen values obtained from 1 to 3 factors were higher than one with 88.9% of total variations. In the first factor, traits of DM yield, plant height, canopy cover, stems number, and in the second factor flowering date, GDD and oil yield and in the third factor oil% had higher Eigen vector coefficients for genotype classification. In cluster analysis, genotypes were categorized in four groups. According to the obtained results, cluster 1 for early maturity, clusters 3 for plant height canopy cover, stems number, DM yield and essential oil production and cluster4, for essential oil%, had significantly higher mean values than other groups. There was a good agreement between the results obtained from cluster and factor analyses in scatter diagram representation of 84 genotypes based on the first and second factors. It was concluded that population of cluster 3 are capable to breeding improved new cultivars and should be focused on selection higher aerial biomass yield, plant height, flower number, essential oil%, coupled with early flowering date. | Para investigar la diversidad y explicar las relaciones del rendimiento de aceite esencial con rasgos morfológicos, 84 poblaciones de T. polycephalum fueron sembradas en el campo utilizando diseño de bloques completos al azar (BCA) con tres réplicas en el Instituto de Investigación de Bosques y Pastizales, Teherán, Irán en 2013-2014. Los datos fueron colectados para la fecha de floración, días de grado de crecimiento (DGC), número de tallos, altura de planta, rendimiento de materia seca (MS), porcentaje de aceite esencial y rendimiento de aceite esencial. Las relaciones entre las características agronómicas se determinaron mediante correlación, regresión y análisis factorial. La distancia genética y la clasificación del genotipo, se determinaron mediante análisis de conglomerados. El rendimiento de MS se correlacionó positivamente con la altura de la planta, cobertura del dosel, número de tallos y rendimiento de aceite (ρ <0.01), mientras que el% de aceite esencial se correlacionó negativamente con la altura de la planta y el número de tallos (ρ <0.05). El resultado de la regresión gradual en la cual el rendimiento de aceite esencial se consideró como variable dependiente mostró que el% de aceite esencial y el rendimiento de MS representaron 39.95 y 47.75% de las variaciones totales en la producción de aceite esencial, respectivamente. En el análisis de factores, los valores de Eigen obtenidos de 1 a 3 factores fueron mayores que uno con 88.9% de las variaciones totales. En el primer factor, los rasgos de rendimiento de MS, altura de la planta, cobertura del dosel, número de tallos y en la segunda fecha de floración del factor, DGC y producción de aceite esencial y en el tercer factor, % de aceite esencial, tuvieron coeficientes de vectores Eigen más altos para la clasificación del genotipo. En el análisis de conglomerados, los genotipos se categorizaron en cuatro grupos. De acuerdo con los resultados obtenidos, el grupo 1 para madurez temprana, los grupos 3 para cobertura vegetal del dosel, el número de tallos, el rendimiento de MS y la producción de aceite esencial y el grupo 4, para% de aceite esencial, tuvieron valores promedio significativamente más altos que otros grupos. Hubo una buena concordancia entre los resultados obtenidos de los análisis de grupos y factores en la representación del diagrama de dispersión de 84 genotipos en función del primer y el segundo factor. Se concluyó que la población del grupo 3 es capaz de producir nuevos cultivares mejorados y debe centrarse en la selección de mayor rendimiento de biomasa aérea, altura de la planta, número de flores, % de aceite esencial, junto con la fecha de floración temprana.
Mostrar más [+] Menos [-]