Уточнить поиск
Результаты 121-130 из 392
A Review on Food Production with 3 Dimensional (3D) Printing Technology Полный текст
2017
Celalettin Değerli | Sedef Nehir El
A Review on Food Production with 3 Dimensional (3D) Printing Technology Полный текст
2017
Celalettin Değerli | Sedef Nehir El
Three dimensional (3D) printing technology, have been quite popular in recent years. It came out first in the area of material production, but now, it has been applied on the other possible fields like food production. In this review, historical period of 3D printing, 3D printer types and working principles, studies on 3D food printing until today and the raw materials used in this studies were investigated. Studies on food printing was also categorised according to food types. Also, the impacts of 3D printing technology on food sector from the point of producer and consumer and future needs were discussed.
Показать больше [+] Меньше [-]Actividad inhibitoria del aceite esencial de Lippia origanoides H.B.K sobre el crecimiento de Phytophthora infestans Полный текст
2015
Arango Bedoya, óscar(Universidad de Nariño ), Facultad de Ingeniería Agroindustrial Grupo de Investigación Tecnologías Emergentes en Agroindustria (TEA)) | Hurtado Benavides, Andrés Mauricio(Universidad de Nariño ), Facultad de Ingeniería Agroindustrial Grupo de Investigación Tecnologías Emergentes en Agroindustria (TEA)) | Pantoja Daza, Diana(Universidad de Nariño ), Facultad de Ingeniería Agroindustrial Grupo de Investigación Tecnologías Emergentes en Agroindustria (TEA)) | Santacruz Chazatar, Lorena(Universidad de Nariño ), Facultad de Ingeniería Agroindustrial Grupo de Investigación Tecnologías Emergentes en Agroindustria (TEA))
Phytophthora infestans is the most damaging agent for potato crops in the humid areas of the world, causing the disease known as drop or late blight. In vitro activity of an essential oil obtained from a wild oregano specie (Lippia origanoides) was investigated. Different concentrations of the essential oil (10, 50, 100, 150, 200, 250 µg/mL) and a commercial fungicide used as control were evaluated. The antifungal activity was determined based on the assessment of mycelial growth by the agar tomato dilution method. From a concentration of 150 µg/mL the patogens growth was completely inhibited, therefore it was considered the lethal concentration. This study showed that essential oil of wild oregano from Alto Patía region, Cauca Department, Colombia, could be a potential antifungal agent to use in P. infestans integrated control systems. | Phytophthora infestans (Mont.) de Bary es el fitopatógeno más perjudicial de la papa (Solanum tuberosum) al causar la enfermedad conocida como gota o tizón tardío. El objetivo de este trabajo fue evaluar la actividad in vitro del aceite esencial obtenido de una especie de orégano silvestre (Lippia origanoides H.B.K.) sobre Phytophthora infestans. Para el efecto se evaluaron diferentes concentraciones de este aceite esencial (10, 50, 100, 150, 200, 250 µg/ml) y de un fungicida comercial usado como testigo. La actividad antifúngica se determinó con base en la evaluación del crecimiento del micelio mediante el método de dilución en agar tomate. A partir de una concentración de aceite de 150 µg/ml se inhibió completamente el crecimiento del patógeno, por lo que ésta fue considerada como la concentración letal. Este estudio demostró que el aceite esencial de orégano silvestre del Alto Patía, Colombia, es un potencial agente antifúngico que podría ser usado en sistemas de control integrado de P. infestans.
Показать больше [+] Меньше [-]The Effect of Exchange Rate Volatility on Turkey’s Agricultural Foreign Trade Полный текст
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.
Показать больше [+] Меньше [-]6360 Sayılı Büyükşehir Yasasının Kırsal Yaşama Olası Etkileri: Kocaeli Örneği Полный текст
2017
Ayşe Köşker Yaman | İlkay Kutlar
6360 Sayılı Büyükşehir Yasasının Kırsal Yaşama Olası Etkileri: Kocaeli Örneği Полный текст
2017
Ayşe Köşker Yaman | İlkay Kutlar
2012 yılında yürürlüğe giren 6360 sayılı büyükşehir yasası ile büyükşehirlerde kır kent ayrımı gözetilmeyerek büyükşehir belediyelerinin hizmet götürme alanı il mülki sınırını kapsayacak şekilde genişletilmiştir. Böylece büyükşehir konumunda yer alan illerde tüzel kişiliğe sahip olan köy ve belde yerleşim yerlerinin tüzel kişilikleri kaldırılarak mahalleye dönüştürülmüştür. Durum böyle olunca bugüne kadar kentsel alana yönelik hizmet anlayışına sahip belediyelerin daha önce köy olan mahallelere belediye hizmetlerini götürmek, tarımsal alt yapı hizmetleri, hayvancılık yatırımları ve faaliyetlerini desteklemesi gibi yeni görev alanları ortaya çıkmıştır. Bu çalışma ile 6360 sayılı büyükşehir yasasının kırsal yaşama olası etkileri araştırılmıştır. Bu kapsamda Kocaeli ili Gölcük İlçesine bağlı Nüzhetiye köyü seçilmiştir. Yeni yasa ile artık Nüzhetiye mahallesi olan mahalle sakinlerine, yeni büyükşehir yasasından haberdar olup olmadıkları ve olumlu ya da olumsuz yönde etkilenip etkilenmedikleri sorulmuştur. Elde edilen bulgular ışığında önerilerde bulunulmuştur.
Показать больше [+] Меньше [-]Scientific prediction and prescription in plant genetic improvement as an applied science of design: The case of Prunus breeding | Predicción científica y prescripción en mejora genética vegetal en cuanto Ciencia Aplicada de Diseño: El caso de la mejora de frutales del género Prunus Полный текст
2017
Martínez-Gómez, Pedro
Plant genetic improvement has a double scientific nature: it is both an empirical science of nature and an applied science of design. In this context, this paper provides an investigation of scientific prediction as an essential fea-ture of plant genetic improvement as an applied science of design with special emphasis in the improvement of stone fruits (Prunus genus). In considering plant genetic improvement, we can speak of three levels of knowledge. These levels are associated with molecular biology (micro level); the genetic constitution of an individual (meso level); and the phenotype and overall appearance of the new release (macro level). These levels of reality affect both the type of prediction and the methodology applied. The prediction is the main objective of the plant genetic improvement as science of design. It is very important to have a knowledge of possible future to make a new design that will be complete within a few years, more than 12 years in the case of stone fruit that is the subject of this work. Finally, in developing a scientific prediction applied to Prunus breeding it is necessary to consider different internal (the genetic nature of the starting plant material, the available methodologies, etc.) and external (social acceptation, environmental factors, biotic and abiotic stresses, etc.) variables.The degree of knowledge of these variables determines the quality of the prediction in the design of the new Prunus varieties. | La mejora genética vegetal tiene una doble índole científica: Ciencia Empírica de la Naturaleza y Ciencia Aplicada de Diseño. En este contexto el presente trabajo pretende indagar en la predicción científica como rasgo esencial de esta disciplina en cuanto Ciencia Aplicada de Diseño con especial referencia la mejora de frutales de hueso (del género Prunus). En mejora genética vegetal podemos hablar de tres niveles de conocimiento asociados a la biología molecular (nivel micro), la constitución genética de un individuo (nivel meso) y al fenotipo o aspecto global de la nueva variedad (nivel macro), que afectan tanto a los tipos de predicción como a las metodologías a aplicar. La predicción constituye el objetivo principal de la mejora genética como Ciencia de Diseño. Es clave tener un conocimiento del futuro posible para poder hacer un nuevo diseño que estará completo al cabo de algunos años, más de 12 años en el caso de los frutales de hueso que es el objeto de este trabajo. Asimismo, es necesario tener en cuenta en el desarrollo de esta predicción científica aplicada a la mejora de Prunus diversas variables internas (la naturaleza genética del material vegetal de partida, las metodologías disponibles, etc.) y externas (la aceptación social, los factores medioambientales, los estreses bióticos y abióticos, etc.) a la hora de llevar a cabo esta predicción. El grado de conocimiento de estas variables determinará la calidad de la predicción en el diseño de nuevas variedades de Prunus.
Показать больше [+] Меньше [-]Time Series Analysis of Causal Relationship among Sectoral Labor Productivity in Turkey Полный текст
2017
Cevher Özden | Filiz Yetiz
In this paper, we investigate the causal relationship in terms of labor productivity among GDP and its constituent three main sectors, e.g. agricultural, industrial and services sectors, in Turkey for the period of 1988-2015. In the study we employed Granger causality/block exogeneity Wald test, Impulse Response and Variance Decomposition analysis. The results showed that both agriculture and industry have positive effects on the labor productivity in services sector, and industry has a positive effect on the labor productivity in agriculture sector, while industrial labor productivity is not affected by the others. The main aim of the paper is examine the question of whether agriculture could serve as an engine of growth. Accordingly, the results indicated that labor productivity in agriculture sector increased during the course of study, and contributed to the labor productivity in services sector, as well. To our knowledge, although this method has been applied in various areas, sectoral causality has not been studied for Turkey before.
Показать больше [+] Меньше [-]The Effects of 1-Methylcyclopropane (1-MCP) and MAP treatments on Quality Parameters of “Hicaz’’ Pomegranate Cultivar Полный текст
2017
Fatih Cem Kuzucu | Mustafa Sakaldaş | Tolga Sarıyer
Pomegranate has been recently considered as a significant fruit for human health and demanded year-long apart from two-month standard harvest period. To extend market supply durations over longer periods, various methods and treatments should be applied to pomegranates to preserve quality parameters throughout different storage durations. The present study was conducted at cold storages of ÇOMÜ Agricultural Faculty to investigate the effects of 1-Methylcyclopropane (1-MCP) and MAP (LDPE, 20 mµ) treatments on quality attributes of ‘Hicaz’ pomegranate cultivar. Experimental materials were treated with two different doses (625 and 1250 ppb) of 1-MCP alone and combined with MAP (625 ppb + MAP and 1250 ppb + MAP) and stored at 3 different storage durations (40, 80 and 120 days). All fruits, including control group, were stored at 6.5-7.5°C temperature and 85-90% relative humidity. At the end of each storage period, fruits were subjected to weight loss (%), Total soluble solids (TSS) content (%), titratable total acidity (TTA) (%g), pH, grain color (a value), decay ratio (%) analyses and assessments were performed for these quality and biochemical characteristics. Both Doses of 1-MCP alone and combined with MAP treatments were found to be more efficient in decelerating the adverse effects on rotting, perishes and other quality parameters, however there were not significant differences between two doses of 1-MCP. Therefore, MAP or 625 ppb 1-MCP treatments alone or combined with MAP treatments can be recommended for better preservation of quality parameter throughout the storage of pomegranates.
Показать больше [+] Меньше [-]Economic Feasibility of Functional Meat Products for Commercial Production in India Полный текст
2017
Varalakshmi Kandanuri
This paper analyses the production of functional chicken meat products from economic perspectives. It analyses and compares the economics and investment feasibility on different size groups of processing plants in India. The primary data on input use and output yield were taken from studies of NRCM and data was analysed using economic analysis and investment appraisal techniques like NPV, IRR(%), BC ratio, and Break even analysis. The results indicated that the cost of production of functional products was 5.2 and 5.18 and 4.59 US dollars per kg on small, medium and large scale units respectively. All the processing units are found to be economically feasible with NPV of US$ 12727, 64661 and 153703, IRR of 26%,31% and 42% and B-C ratio was estimated as 1.56, 1.78 and 2.29 for small, medium and large scale units respectively. Economies of scale is evident form all perspectives like production costs, profits, discounting measures and breakeven point. The study found the feasibility of functional meat products in India for commercial production.
Показать больше [+] Меньше [-]The General Effects of Dioxins on Livestock Feeding Полный текст
2017
Süleyman Çalışlar | Mesut Karaman
Dioxins is one of the chemicals groups that cause liver toxicity, live weight reduction, immune suppression, reproductive impairments, eggshell thinning, birth defects, cancers and death in animals. The 2,3,7,8- tetrachlorodibenzo-p-dioxin (TCDD) is the most poisonous environmental chemical and many studies were showed high dosage of TCDD affects all animal group. Also TCDD increase cancer risk in human so this chemical described as carcinogenic by International Agency for Research on Cancer. Dioxins are stored in animal foods such as meat, milk, eggs and fish, because they are soluble in oil and remain in these products for many years. Dioxins can dissolve in fat and high stability therefore it can be infected to meat, milk, egg, and fish and store there for long time as a result people could be contained with dioxin during daily life. Animal feed additives such as organic acids, pH modifiers, starch, sugar, vegetable oil, fat, fruit and by-products of plant, kaolinite, rendering products, pelleting aids cause dioxin contamination. The maximum dioxin content in plant-origin feedstuffs and their by-products is 0.75 ng toxic equivalent/kg body weight. In this rewiew, the effects of dioxins on livestock feeding was examined.
Показать больше [+] Меньше [-]The Effect of Different Zinc Application Methods on Yield and Grain Zinc Concentration of Bread Wheat Varieties Полный текст
2017
Hatun Barut | Tuğba Şimşek | Seyyid Irmak | Uğur Sevilmiş | Sait Aykanat
This study was carried out to elucidate the impacts of zinc (Zn) treatments on growth, development, quality and yield of commonly sown bread wheat cultivars under field conditions of Çukurova Region. Three different bread wheat cultivars (Adana-99, Ceyhan-99 and Pandas) were experimented in randomized complete blocks-split plots experimental design with 3 replications. Field experiments were performed by two different Zn application methods; via soil and via soil+foliage. In the both trials, 0, 5, 10, 20, 30, and 40 kg ha-1 pure Zn doses were applied to the soil. 0.4% ZnSO4.7H2O solution was used for foliar Zn applications. Current findings revealed that Zn treatments had significant effects on grain yield, grain Zn concentration, grain phosphorus (P) concentration and thousand grain weight of bread wheat cultivars, but significant effects were not observed on grain protein concentrations. Soil+foliar Zn treatments were more effective in improving grain Zn concentrations. It was concluded that 10- 20 kg ha-1 Zn treatment was quite effective on grain Zn concentrations.
Показать больше [+] Меньше [-]Evaluation of Chemical Characterization, Antioxidant Activity and Oxidative Stability of Some Waste Seed Oil Полный текст
2017
Sibel Uluata | Nurhayat Ozdemir
In this study, fatty acid composition, antioxidant activity, total phenolic compounds (TPC) and oxidative stability of cherry seed (SCO), sweet cherry seed (SCSO), mulberry seed (MSO) and plum seed oil (PSO) were determined. Oleic acid was determined as primary fatty acid (42.9-67.3%), and followed by linoleic acid (23.4-41.8%) for SCO, SCSO and PSO. Linoleic acid was determined as primary fatty acid in MSO. γ-tocopherol was determined the main and highest tocopherol isomers varied from 579.9 to 605 mg/kg oil in SCO, SCSO and PSO, whereas δ-tocopherol was determined main tocopherol isomer with 1354mg/kg oil value in MSO. Plum seed oil (PSO) was the highest antioxidant activity values in both 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) assays. There was no significant differences in lipid hydroperoxide and TBARS (2-thiobarbituric acid-reactive substance) formation among SCO, SCSO and MSO. PSO had the highest induction period (15.1 h), followed by MSO (1.4 h), SCSO (1.5 h), SCO(1.3 h). PSO was oxidatively more stable than the other oil samples. This research shows that these waste seed oils have high antioxidant capacity and tocopherol content, so they could be used in food industry.
Показать больше [+] Меньше [-]Screening of secondary metabolite biosynthesis genes of marine actinomycetes isolated from Trabzon (Black Sea) sea sediments Полный текст
2017
Kadriye Özcan
In this study, active secondary metabolite production capacity of actinomycete isolates obtained from Trabzon (Black Sea) sea sediments was investigated by molecular techniques. Totaly 24 actinomycetes were investigated by PCR based on the presence of secondary metabolite biosynthesis genes PKS / NRPS. According to the PCR results, 25 and 58% of actinomycetes obtained from Trabzon sea sediments were found to contain PKS-NRPS and only NRPS gene regions, respectively. When PCR data were evaluated, it was found that the production of the peptide form active secondary metabolite of the isolates by non-ribosomal way was higher than that of the secondary metabolite production by the PKS pathway. In addition, it has been determined that Black Sea marine sediments have high potential for active secondary metabolite production.
Показать больше [+] Меньше [-]