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EXTRACTION AND EVALUATION OF BIOACTIVE COMPOUNDS FROM SOME FRUIT AND VEGETABLE PEELS Texto completo
2017
Eman Yousef | Nagwa Rasmy | I. Rizk | Hanan Al-Sayed
Different research reports have revealed that food industry by-products can be considered as good sources of potentially valuable bioactive compounds. This study was performed to evaluate the antioxidant capacity of the peel extracts of pomegranate (PoP), mango (MaP), prickly-pear (PrP), Cantaloupe (CaP) and pea (PeP) using different solvent polarity (methanol, ethanol, ethylacetate and water) to particular attention to their content of total phenolics and flavoniods. Among all tested extracts, ethanolic extracts of PoP, MaP and PrP and aqueous extract of CaPand PeP were shown to exhibited a significant (p≤0.05) highest extraction yield, total phenolic and flavonoid contents and antioxidant capacity (measured by DPPH,ABTS and FRAP methods). The antioxidant capacity of different peel extracts was showed the following descending order, MaP>PoP>PrP>CaP≈ PeP. Also there was a strong positive correlation between the DPPH, ABTS, FRAP values and total phenolic as well as, flavoniod contents of different peels extracts. Seventeen phenolic compounds were identified and quantified by HPLC-UV analysis in different peel extracts. Galic acid was identified as the major compound in MaP and PoP extracts, while it was rutin in the case PrP,CaPand PeP extracts. From the results obtained, fruit and vegetable peels can be considered as good sources of valuable bioactive compounds.
Mostrar más [+] Menos [-]STATISTICAL ESTIMATION OF PRODUCTION AND COSTS FUNCTIONS OF CEREAL IN THE ARAB WORLD Texto completo
2017
Mona Abdel Kareem
crops in Arab world, this being a staple food of the citizen Arab, and is the research problem in the decline of production of the main cereal crops of wheat, maize, rice and sorghum rates in the Arab world, which accounts for about 50.7 million tons with an increase of consumption, which represent about 129 million tons during the period (2000-2013), and targeted research study economy, thus the Arab homeland cereal production through the study of the current situation of cereal production for the most important producing countries, and the estimation of the statistical production functions and costs for cereal Arab world . The most important results have resulted in the following: 1- Studying the cereal production function in the short run in Arab world, and estimates flexibility productivity total of elements used for the function, which reflected the nature of increasing returns to scale for the three categories, respectively, in terms of production increases by the biggest increase production elements used, and appreciated the flexibility the production total of the elements of production in the estimated function in the long run, which amounted to about 0.9 nature of returns to scale declining terms of decreasing production by less than the increase in production factors. 2- The estimation of the economic efficiency of the use of seeds, and the number of agricultural tractors, and fertilizers in cereal functions production for world Arab for the three categories of productivity, results showed that there Optimal utilization of the two elements of seed and fertilizer in the third category and this agreed with the economic logic and therefore advised production under this category because it represents the appropriate size for the production of cereal –in Arab world, and the assessment of the economic efficiency of the productive classes the first and second shows the significant need to intensify the use of racist seeds, agricultural tractors and agreed with this economic logic . 3- By studying the cost functions of production for cereal-producing countries for cereal world Arab three classes in the short and long respectively term, low cost per unit produced increased scale productivity shows that consistent with economic logic, and thus advised to production on an economic scale under the third category as they approach the appropriate size cereal production, which represents the average output of about 23.2 million tons, and size optimized for the production of about 30 million tons, which means higher economic efficiency for this category and therefore is cereal production in this category, which is represented in Egypt, Morocco, Iraq, Syria, Somalia is better than the technical and economic face on the basis of less expensive Mid of the second category, regardless of the first category where not recommended for the production of cereal in the first category on an economic scale, which is represented in Oman, Kuwait, Mauritania, due to the weakness of each of the areas and so production can have, and the average unit cost of about 1.3, 106.6, 22.9 dollars per ton, respectively for the three categories, and this confirms previous results, also showed marginal costs for cereal estimates in the long run, which amounted to about $ 33.8 / ton, while the average cost of producing a ton of grain amounted to about $ 20, and as the optimal size of the production of about 20.25 million tons in the long run.
Mostrar más [+] Menos [-]GREEN MARKETING AS A RECENT ATTITUDE TO ACHIEVE SUSTAINABLE DEVELOPMENT Texto completo
2017
Soha El-Deep | Ahmed El-Sayd
Environmental issues is an important topic nowadays as almost every country’s government and society has started to be more aware about these issues. This leads to a trend of green marketing used by the firms /producer in order to gain profit and protect the environment, Green marketing is the process of satisfying the needs and wants of customer’s in a way which can bring benefit or profit for both the producer and the society by reducing detrimental impact on the natural environment by providing less environmental harmful and/or more environment friendly products to the respondents, green marketing tools such as eco-label, eco-brand and environmental advertisement will make easier perception and awareness of green products attributes and characteristics, consequently, guiding them into purchasing environmentally-friendly products. Applying these policy tools plays an essential role to switch customer’s actual purchasing behavior to buy environmental friendly products, therefore, reduce the negative impact of synthetic products on the environment. The aim of this research was to know the respondents awareness of green marketing and its impact on sustainable development and to assess the attitude of respondents towards green marketing and sustainable development. A sample of (150) respondents was chosen from (5) super markets for administering well structured survey questionnaires. The analytical tools were used descriptive statistics, inferential statistical treatments such as percentages, means, and correlation analysis were applied to the data. From the research it was found that majority of the respondents did not have knowledge about green marketing because it is very new concept for respondents otherwise majority of the respondents agreeabout believing in the concept of green marketing, paying extra cost for green products also majority of the respondents strongly agreeabout supporting green marketing and sustainable development strategies The results of a correlation analysis between the respondents’ attitude towards green products with respondents’ demographics showed that, the respondents’ attitude towards green products was significant negatively correlated with Age, Education and income were significant positive correlated with respondents’ attitude towards green products, the research recommended that government and marketing organizations have to disseminate the importance of green marketing and enhancing the awareness at every level of stakeholders about green marketing.
Mostrar más [+] Menos [-]FIELD STUDY OF THE ECONOMIC AND SOCIAL EFFECTS OF THE AGRICULTURAL LANDS IN GIZA GOVERNORATE 2017 Texto completo
2017
F. Zaki | Thanaa Ahmed | H. Sahrhan
It is one of the most serious problems facing Egyptian agriculture, which is working to eat agricultural area Where farmland represents one of the most important agricultural economic resources in the provision of food, where is the problem of constant encroachment on farmland and converted from agricultural use to other uses of non-farm as the total agricultural land has been encroached upon construction during the period Area (1983 - 2010) about 64 Thousand acres in addition to the encroachment on about 38.46 thousand acres since the wealth of January 25, 2011 until 28/9/2014, which led to a decline in the average per capita agricultural land in Egypt from about 0.133 acres / population in 1983 to about 0.112 acres / people in 2011, was where the study problem in increasing encroachment on the land Agricultural Giza especially governorate Doanh the post-January 25 Revolution 2010 study was conducted to identify the effects of Aguetsadahoalajtmaih leveling farmland in Giza Governorate 2017 season. Where the characteristics and motives of the establishment of private projects and land has been identified, and this motivation strengthens the doctrine of the importance of infringement by seeing others from projects that are based on their negative impact on the neighboring lands of the project, especially if the success of the project and the desire to imitate this behavior or create a new project The previous project, whether through raw materials or taking advantage of the product of the former resident on the lands beyond it, which sees the oppressor as an incentive for the tradition and Altadam on the infringement of the other and waiting for what happened to him before the establishment of a plant on the land beyond it and did not see the behavior of Alchk Meh it packs serious and immediate accountability and behavior, whether or removal or punishment Salehbh both. It was concluded that the owners of the first Mivkron project is the amount of income obtained by the search for the compensation of what was obtained before the establishment of the project and shows the table what the project owner gets from the agricultural land before the establishment of the project and the income obtained after the establishment of the project and depends on the difference in income, The project, where it was found that the owner of a poultry farm was obtained on average on 94.4 pounds / month as the value of rent or equivalent percentage of the crops produced from the area on which the project is established (poultry farm, which is 5.28 i), while the increase rose to 12.3 thousand pounds, increase of about 13.56% than once The average monthly income before the establishment of the stadium amounted to about 193 pounds / month, which rose about 8 thousand pounds / month, an increase of about 4145% of what was obtained of the agricultural land, while the income of the owner of the wedding hall before the establishment of about 113.3 pounds / month of agricultural land, while the rise to about 4 thousand pounds from the wedding hall, an increase of 3530% of what was obtained from the ground. Although the satisfaction of the projects on the land above it is much higher than the return of agricultural land, this high return of projects does not correspond to the degree of food deprivation for future generations as a result of conversion of agricultural land to special projects in all wars and the occurrence of fodder or influence the political decision to import food and provide of society as a whole.
Mostrar más [+] Menos [-]NONOSMOTIC EFFECT OF POLYETHYLENE GLYCOL ON PERCENT SURVIVAL AND GROWTH OF RICE Texto completo
2017
S. Abouzied | Amal Abd El-latif
Salinity is one of the major environmental factors limiting crop productivity. For this reason, two greenhouse experiments were conducted in Faculty of Agriculture, Cairo University, Egypt, during the year 2015 using two rice varieties to evaluate the effects of various levels of osmotic stress caused by polyethylene-glycol 6000 (PEG) and NaCl. Furthermore, it was tested whether the inhibitory effect of salinity on growth, sodium and chloride concentration by two different varieties was greater under NaCl or PEG treatment. The first experiment was undertaken to separate osmotic and ionic aspects of salinity damage to rice (Oryza sativa L.).Seedlings of IR28 (salt-sensitive) and Nona Bokra (salt-tolerant) rice varieties were transferred to salinized nutrient solution containing 85 mol m-3NaCl (-3.0 bars) with or without PEG 6000 (-2.0 bars, 45 gL-1). Plants were grown up to 30 days in the salinized solutions. The second experiment was designed to determine the effect of salinity (85 mol m-3NaCl) with or without PEG 6000 (-0.5 bar, 11 g L-1)on growth, uptake and transport of sodium and chloride in two rice varieties differing in salt tolerance. The results indicated that survival of salt-tolerant variety (Nona Bokra) was increased significantly by adding PEG (-2.0 bars). The addition of PEG also reduced the rate of death of rice plants compared with NaCl alone. Also, data showed that PEG 6000 (0.5 bar, 11 gL-1) reduce sodium concentration in root of IR28 and Nona Bokra but its effect upon sodium concentration in shoot of the two varieties was more pronounced than the reduction of Na+ concentration in root. Highly significant differences were obtained between zero and 11 gL-1 PEG. The result of this study is strongly indicated that addition of PEG dramatically lessened the toxicity of NaCl to rice seedlings.
Mostrar más [+] Menos [-]ANALYTICAL STUDY FOR PREDICTING PRODUCTION, NATIONAL CONSUMPTION AND SELF-SUFFICIENCY RATES OF THE MOST IMPORTANT LEGUME CROPS IN EGYPT Texto completo
2017
Sanaa Sadek
The United Nations announced in 2016 was as international year for Legumes crops. As a part of sustainable food production, legumes are playing a vital role in Egypt for providing people with their needs from plant protein and amino acids. In general, Egypt suffers a gap between domestic production of legumes and consumption needs, particularly of Faba bean, and lentil. Thus, self sufficiency ratios reached 39% and 1.6% for both crops in 2014 respectively ([1]). Consequently, the imported amounts from both products were increasing during 1993 and 2014. So that the average of import value of Faba bean reached to LE 1.7 milliards alone, while lentil reached to LE 583.4 millions during 2010 and 2014, which represent about 66.2% and 22.3% respectively from the average import value of legume crops. Due to spread Balkiros injury in 2011, the cultivated area and domestic production of Faba bean has been significantly declined so that import value was increased. While, Faba bean domestic production represents about 78% of total legumes production, lentil represents only 1.3% as average of the period (1993-2014)([2]). The present paper aims to: (a) Identify the most important productivity and consumption indicators for leguminous crops in Egypt by using the equations of general time trend during the period (1993-2014). (b) Analyze statistical methods for predicting the most important economic indicators for legumes during the future period (2015-2024). ARIMA models were used to forecast production, consumption, and self-sufficiency after eliminating time series non-stationary and transferring it into stability or stationary series. This was done to be able to use PC-application econometric software package E-views 8 program. (c) Review, explain and interpret the results of ARIMA forecasting and the general time trend models as guidelines to draw agricultural production policy for legumes. ([1]) Ministry of Agriculture and land reclamation, economic affairs sector, the Central Administration of Agricultural Economics, Public Administration of agricultural economic resources, food balance sheets, various issues. ([2] ) Ministry of Agriculture and land reclamation, economic affairs sector, the Central Administration of Agricultural Economics, Foreign trade of agricultural exports and imports Bulletin, various issues.
Mostrar más [+] Menos [-]A CASE STUDY TO COMPARE THE COSTS AND RETURNS OF BOTH NORMAL ARTIFICIAL INSEMINATION AND SEXED ARTIFICIAL INSEMINATION IN COWS Texto completo
2017
Esraa Hassan | M. Elsentrecy | Salwa Abd-Elmoneam | E Abdalla
Achieving food security is one of the main objectives of the national strategy to promote national production. The Egyptian food basket suffers from a lack of protein content. Animal production is an integral part of agricultural and national activity as a whole. The average value of Egypt's production of red meat (livestock and slaughtered animals) during the period (2000-2015) was estimated at about 24.7 billion Egyptian pounds, representing about 38.9% the value of animal production of about 63.4 billion Egyptian pounds on average, Of the value of agricultural production of about LE 179.4 billion for the same period. In the light of the results of the case study carried out in the Dina farms in 2015, it can be said that if this method is circulated using the seminal fluid at the level of the Republic 2015 for female cattle in the age group more than two years at the level of the Republic in 2015 it is expected that the number of males about 43,450 thousand head and number Females were 266,9 thousand, 13.9% and 86.1% respectively. The net realized revenues were estimated at LE 129 million for male production, while the net return on females was LE 7.87 billion, which resulted in increased female production of meat and milk, for livestock breeders in Egypt and then increase Agricultural, livestock and national agricultural income as a whole. While in the case of 2015, at the level of the Republic of the same number of cattle in the age group more than two years (at the age of the first vaccination) in the case of artificial insemination and the application of the costs and revenues of the output obtained, it is clear that the net expected return of male production in this year is about 517 million pounds While the net return on female output was LE 5.12 billion, which showed that there was a significant difference between the percentage of profits obtained. The higher the number of female herds through artificial insemination and the consequent increase in female output and the increase in meat and dairy production. Thus, the application of the method of natural vaccination of livestock in Egypt on all females expected for 2020, which is about 603.72 thousand head, the rate of milk production will be about 9100 kg per head during the production season, noting that the average milk production for the head a day about 35 kg and the number The dairy production season is about 260 days average depending on the state of the animal and the environmental and climatic conditions and the method of nutrition and care. Thus, it is expected that the total value of milk production for livestock is about 27.5 billion pounds in 2020, indicating that the increase in milk production in this way than the following method of vaccination The average value of dairy production in this case was estimated at 17.4 billion pounds for the year 2020, an increase of about 10.1 billion pounds by about 63.3%. This is in favor of the method of artificial insemination, resulting in great economic returns for individual farms, commercial farms and the national level as a whole. In the case of artificial insemination, the number of females in 2020 was estimated at 381.6 thousand. The difference is in favor of artificial insemination, with an increase of about 222.1 thousand females. In the case of artificial insemination, the number of males increases by 304,641 thousand head. And fattening of calves due to inheritance of genetic factors affecting the rate of food conversion. Since the average live weight of a live animal at slaughter is about 400 kg for females, about 450 kg for males, it is expected that the amount of meat for females in the case of artificial insemination is about 249.1 million kg in 2020 while the male meat is about 34.6 million kg. Of males in this way, and this is in favor of dairy farms. The expected amount of meat expected for females in the case of IVF is about 152.6 million kg for the year 2020, while the amount of meat from males is about 171.7 million kg. Milk production is noted in this way and is more important for meat farms So as to increase the number of males. In both cases, there is a clear difference between the profits achieved by these two techniques compared to natural vaccination, where there was a significant difference in the rate of net profit, which proves the effectiveness of artificial insemination in the achievement of self-sufficiency of meat and dairy and the promotion of the livestock sector.
Mostrar más [+] Menos [-]USE THE TRANSPORTATION MODEL IN THE DISTRIBUTION OF POULTRY PRODUCTION UNDER ALTERNATIVE SCENARIOS OF PRODUCTION Texto completo
2017
Hanan Ghaly | Mona Emam | Manal Salah
The poultry production sector occupies an important position among the animal production sectors, as one of the main sources of animal protein in Egypt, with a value of about 32.4 billion pounds, representing about 28.9 % of the value of animal production in 2014. This is due to the features of this sector of the short production cycle, the speed of capital turnover, as well as the high economic return. The problem of the study is the large variation in poultry prices between production areas and consumption areas, Indicating an inefficient transport system, which is considered one of the most important marketing services for this fast food commodity death under the prevailing climatic conditions, thus ensuring that they reach the consumer as quickly as possible. The study aimed is to propose the best transportation model to transport poultry production from surplus with poultry to those of shortage with poultry governorates, to reach the shortest distance marketing to minimize transport costs and time. The study used the transportation problem as one of the operation research tools to rationalize the poultry redistribution between surplus and shortage governorates during three scenarios. The study showed under the assumption of the first scenario (production and consumption are expected firming), that the expected quantity to be transported to the shortage governorates to be about 817.4 thousand tons represent about 25.3% of the total production of the republic during the year 2020, Under the proposed model, the least cost of the transfer is estimated at 69.9 million units/km / ton, are estimated quantities transported about 2.5 million tons, represent about 78.1% of the total production at the level of the republic of that model estimated at 3.2 million tons during 2020. The study also showed that under the assumptions the second scenario (lower production 10% and consumption firming), that the expected quantity to be transported to the shortage governorates to be about 850.7 thousand tons represent about 29.2% of the total production of the republic, Under the proposed model, the least cost of the transfer is estimated at 76.9 million units / km / ton, are estimated quantities transported about 2.2 million tons, represent about 75.8% of the total production at the level of the republic of that model estimated at 2.9 million tons. Under the assumption of the third scenario (Production firming and lower consumption 10%) that the expected quantity to be transported to the shortage governorates to be about 702.3 thousand tons represent about 21.7% of the total production of the republic, Under the proposed model, the least cost of the transfer is estimated at 573. million units / km / ton, are estimated quantities transported about 2.5 million tons, represent about 78.1% of the total production at the level of the republic of that model estimated at 3.2 million tons. The study recommended the use of scientific methods to rationalize the transport process between the governorates thus achieving cost and time to transfer at least on the side and the other side reduce wastage circulation which serves to provide the appropriate poultry prices.
Mostrar más [+] Menos [-]STANDARD ANALYSIS OF CITRUS CROPS IN THE SYRIAN ARAB REPUBLIC Texto completo
2017
M. Khatlish | B. Morsi | M Abdel Fatah
The study aimed to throw light on the current status of the area, productivity and production of citrus, orange and lemon in Syria, the development of the quantity and value of exports and imports, the export and import price of citrus, the development of the quantity and value of exports and exports price of the orange during the study period, the geographical distribution of Syrian exports of orange for the period (2007-2011), and standard samples for external demand on oranges. The foreign trade of citrus was in Syria the study showed that the production of citrus growing at a rate of about 38.12 thousand tons per year and the cultivated area of citrus growing at of about 1.35 thousand acres per year, the increase in the productivity of the hectare was not significant in any mathematical relation. The production of oranges increased by about 45% per year and the cultivated area of oranges increased by about 0.94 thousand acres per year, the increase in the productivity of the hectare was not substantiated in any mathematical relation. The production of lemons increased by about 6.73 thousand tons per year, growing at of about 0.28 thousand acres per year, the increase in the productivity of the hectare was not substantiated in any mathematical relation during the study period. The quantity of citrus exports increased by 24.9% per year, the value of citrus exports increased by 25.5% per year, the quantity of imports of citrus is increasing at a rate of about 19.5% annually, the value of imports of citrus is increasing at a rate of 24.9%, the quantity of exports of oranges is increasing at a rate of about 23.1% annually and the value of exports of oranges is increasing by 18.1%. The export price of oranges decreased by about $ 22.09 per year. In addition, the factors determining the average per Iraqi capita share of Syrian orange has been studied which indicated inverse relation between the dependent variable and the Syrian export price per kilogram in dollars, with an increase of 1% the average per Iraqi capita share of Syrian orange decreased by 2.45%. As well as a positive relation between the dependent variable and the average per Iraqi capita income in dollar and the export price of Turkey in dollars, by the increase of these factors of 1% the average per capita Iraqi quantity of Syrian orange increased by 1.98% and 1.37%, respectively. In addition, the factors determining the average per Jordanian capita share of Syrian oranges were calculated according to the export price of Syria in dollars. The model shows a positive relationship between the dependent variable and the export price of Lebanon in dollars. The average per Jordanian capita share of Syrian oranges was 2.88% and 0.75% respectively, which shown an inverse relation between the dependent variable and the export price of Syria in dollar, with an increase of 1%, the average per Jordanian capita share of Syrian orange decreased by 4.4%. The most important indicators of foreign trade of Syrian orange for the most important countries showed Russia in the first position in terms of the market share, which is about 96.1% of the total Syrian exports. It is clear that for political reasons between Syria and Russia. Then, Saudi Arabia and Kuwait came second with 1.7% of Syrian exports.
Mostrar más [+] Menos [-]IN VITRO MICROTUBERIZATION OF POTATO: EFFECT OF EXPLANT DENSITY, SOURCE, AND GENOTYPE Texto completo
2017
F. Mohamed | K. Abdel-Hamid | Genesia Omar | Basma El-Safty
This study was conducted to examine explant density and source on production of in vitro potato microtubers, as well as survey of different newly-introduced potato cultivars for their microtuberization capacity at the Plant Tissue Culture Facility of the Department of Horticulture, Suez Canal University between 2014 until 2016. Results indicated that as culture density from single node explants increased, microtuber number and yield/petri dish were also increased. However, at the lowest density (10 explants/petri dish), the % tuberization and the average microtuber weight increased significantly over the higher densities (20, 25 and 30 explants/petri dish). Potato microtuber production from plantlets grown in vitroon microtuberization induction medium (liquid over solid media) was also studied using 5, 10 and 15 plantlets per jar.Results showed that microtuber number and yield/jar increased gradually with increasing plantlet density. However, on per plantlet basis, microtuber number increased at the lowest density. Microtuber yield/jar increased significantly at the highest density (1099 mg/jar) compared to 563.6 mg/jar at the lowest density. Average microtuber weight was also affected by culture density and genotype. At the lowest density, microtubers were significantly heavier than at the high density, and the cv. 'Safrane' recorded the highest weight per microtuber. Regarding the effect of explant source on microtuber production, results indicated that the use of single node explants derived from the top of the plantlet produced more microtubers than those taken from the basal part, or 3 node segments. Explant source also affected microtuber yield/dish. Single nodes from the top produced the highest yield compared to 3-nodes segment from the top (205 vs. 104.8 mg). The highest mean microtuber fresh weight was obtained from the culture of 3-node layered segment from the plantlet base, while single nodes from the top recorded lower microtuber fresh weight. The highest microtuber fresh weight was recorded in cv 'Universa' (114.3 mg) using single nodes from the plantlet base. Differences among the tested potato cultivars in microtuber production were detected.
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