خيارات البحث
النتائج 11 - 20 من 292
Effects of Temperature on Time Dependent Rheological Characteristics of Koumiss النص الكامل
2016
Serdal Sabancı | Ömer Çokgezme | Derya Tezcan | Mutlu Cevik | Filiz İçier
The rheological properties of koumiss were investigated at different temperatures (4, 10, and 20°C). Experimental shear stress–shear rate data were fitted to different rheological models. The consistency of koumiss was predicted by using the power-law model since it described the consistency of koumiss best with highest regression coefficient and lowest errors (root mean square error and chi-square). Koumiss exhibited shear thinning behavior (n
اظهر المزيد [+] اقل [-]Application of Rosemary (rosmarinus officinalis l.) Based Natural Antioxidant During Deep Fat Frying of Noodle النص الكامل
2016
Navneet Singh Deora | Aastha Deswal | Sanjith Madhavan
The aim of this study was to evaluate the effects of a natural antioxidant derived from rosemary extract on the stabilization of palmolein oil during deep-fat frying of Noodles. Palmolein oil with tertiary butylhydroquinone (TBHQ), a synthetic antioxidant and palmolein without antioxidant were used as positive controls. Thermo-oxidative transformation were measured according to various physical and chemical parameters. Total polar compounds (TPC), free fatty acids (FFA) were measured during the study. All the parameters evaluated in the study increased with the number of frying cycles. The order of effectiveness of antioxidants for inhibition of palmolein oil degradation in deep-noodles was: PRESOL (rosemary based extract) > TBHQ > Control. In terms of oil consumption, it was observed that noodles fried in oil with rosemary extract had lower value of oil consumption as compared to TBHQ and control. The TBHQ degradation kinetics was also evaluated with frying cycle. It showed an exponential decay with increase in frying cycles. Also samples containing natural antioxidant had a least changes in the colour as compared to TBHQ and control at the end of frying cycle.
اظهر المزيد [+] اقل [-]Determination of Effective Diffusion Coefficient of Gemlik Olives in Table Olive Production and The Effects of Salt Concentration On Lactic Acid and Reducing Sugar النص الكامل
2016
Ömer Faruk Gamlı
One of the significant crops in Mediterrenean countries is olive (Olea europaea) and an important amount of this fruit are manufactured for direct human consumption. In this study, table olives were produced from Gemlik type of green and black cultivars that grown in Osmaniye, Turkey by using different salt concentrations (8-14%). By the increase of salt concentrations in brines, moisture contents of olives also increased and moisture values of green and black types ranged between 45.24-54.90% and 46.04-56.53% respectively. Salt contents of olives were in the interval of 1.21-5.22% for green olives and 2.32-5.58% for black olives. It was also established that the diffusivity coefficients (Deff) increased due to increasing salt concentrations and found between 4.38 × 10-8- 6.59 × 10-7 (m2s-1) for green olives and black olives as 3.79 × 10-8 - 3.56 × 10-7 (m2s-1). The lactic acid concentration of green olives was higher than black ones and calculated as between 0.439-0.452% and 0.412-0.441%. On the other hand, it was determined that lactic acid production was higher for Gemlik olives that fermented in 10% and 12% brine solutions in comparison with others. Reducing sugar contents of green olives were lower than black ones and recorded in the gap of 4.76-1.88% and 4.89-2.01% during fermentation process.
اظهر المزيد [+] اقل [-]Determinants of Food Security Status of Maize-Based Farming Households in Southern Guinea Savannah Area of Oyo State, Nigeria. النص الكامل
2016
Oluwayemisi Abidemi Onasanya | Oluwakemi Adeola Obayelu
Nigeria is one of the countries in sub-Saharan Africa with insufficient food and high food import bill, which have debilitating effects on the productive capacity of the citizens. Maize is the most important cereal after rice and its production contributes immensely to food availability on the tables of many Nigerians. This study examined the contribution of maize production to household food security status of rural maize-farming households in the southern guinea savannah of Oyo state, Nigeria. A multistage sampling procedure was used to select 200 farm households and the data were analysed using descriptive statistics, recommended daily calorie requirement (RDCR) approach, Logit model. Results showed that about three-quarters of the households were food secure and were able to meet the recommended calorie intake of 2260Kcal per capita per day. The shortfall index (P) which measures the extent of deviation from the food security line, indicated that the food secure households exceeded the RDCR by 65%, while the food insecure households fell short of the RDCR by 31%. The logit model showed that maize output, gender, primary occupation of the farmer, farm size and farming experience had a positive influence on food security status while age had a negative influence on the food security status of maize-based farming households in the Southern Guinea Savannah of Oyo State, Nigeria. This suggests need for specific support to improve maize production
اظهر المزيد [+] اقل [-]Farmers’ Perception and Adaption to Land Use Change and Climate Variability in Fina Reserve, Mali. النص الكامل
2016
Karamoko Sanogo | Souleymane Sanogo | Abdramane Ba
Like the whole sub-Sahara Africa, rainfall in Fina reserve is subject of strong inter-annual variability. This paper assesses farmers’ perception on land use utilised in the Fina biosphere reserve and their adaptation measures to climate variability. The statistical methods (descriptive and inferential analysis) are used in this study to determine farmers’ perceptions and the adaptation measures in the Fina reserve. Results reveal that 75.5% of the farmers noticed an increase in temperature and decrease in rainfall ignoring the recent recovery observed in the annual rainfall. The length of rainy season is considered to be shorter according to 77.6% of farmers involved to the investigation. However, all the farmers underlined frequent and longer dry spell. Bush fire is considered by 10.2% of farmers as the major factor affecting the natural resources of the reserve and only about 10% of farmers accorded much importance to agricultural land as contributor to reserve degradation. Most of the farmers are limited by lack of manpower and not by the reserve rule to increase their farmlands. The major adaptation measures are the methods of shifting cultivation and improving seed which are practiced by 51% and 87.8% of farmers, respectively. New adaptation strategies such as adoption of planting pits and stone-bunds for water retention need to be practiced by farmers.
اظهر المزيد [+] اقل [-]Current Status, Problems and Solution Proposals of Small Ruminant Husbandry in Ordu النص الكامل
2016
Hilal Tozlu Çelik
The Black Sea Region has a convenient structure for small ruminants in livestock activities thanks to its mountainous, rugged terrain, climate and socio-economic structure. Ordu is the third largest city of the Black Sea Region. The purpose of this research is to determine the current status of small ruminant in Ordu province and offer solutions by defining the problems.
اظهر المزيد [+] اقل [-]Importance of Clover (Trifolium sp.) Genus for Black Sea Region النص الكامل
2016
Özlem Önal Aşcı
There is a high level of forage deficit in Turkey. It is necessary that cultivation and productivity of forage plant should be increase to close forage deficit in a short time, further, pastures should also be improved. Clover genus involves both annual and perennial species, it has some species are grown different soil conditions. Clover species are grown in cool temperate and humid regions have thin stem and abundant leaf, thus, their hay is very nutritive feed for animals. They can use both increasing forage cultivation and pasture improvement in Black Sea Region.
اظهر المزيد [+] اقل [-]Soil Carbon and Nitrogen Stock as Affected by Agricultural Wastes in a Typic Haplusult of Owerri, Southeastern Nigeria النص الكامل
2016
Stanley Uchenna Onwudike | Bethel Ugochukwu Uzoho | Bernadine Ngozi Ndukwu | Innocent Uzoma Opara | Ojinere Clitton Anyamele
We evaluated the effect of saw dust ash (SDA) and poultry droppings (PD) on soil physico-chemical properties, soil carbon and nitrogen stock and their effects on the growth and yield of okra (Abelmoshus esculentus) on a typic haplusult in Owerri, Imo State Southeastern Nigeria. The experiment was a factorial experiment consisted of saw dust ash applied at the rates of 0, 5 and 10 t/ha and poultry droppings applied at the rates of 0, 5 and 10 t/ha. The treatments were laid out in a randomized complete block design and replicated four times. Results showed that plots amended with 10 t/ha PD + 10 t/ha SDA significantly reduced soil bulk density from 1.37 – 1.07 g/cm3, increased soil total porosity from 48.4 – 59.7% and the percentage of soil weight that is water (soil gravimetric moisture content) was increased by 68.4%. There were significant improvements on soil chemical properties with plots amended with 10 t/ha PD + 10 t/ha SDA recording the highest values on soil organic carbon, soil total nitrogen and exchangeable bases. Plots amended with 10 t/ha PD + 10 t/ha SDA significantly increased soil carbon stock by 24% and soil nitrogen stock by 49.5% more than other treatments. There was significant increase in the growth of okra when compared to the un-amended soil with application of 10 t/ha PD + 10 t/ha SDA increasing the fresh okra pod yield by 78.5%. Significant positive correlation existed between SCS and organic carbon (r = 0.6128), exchangeable Mg (r= 0.5035), total nitrogen (r = 0.6167) and soil pH (r = 0.5221). SNS correlated positively with organic carbon (r = 0.5834), total nitrogen (r= 0.6101) and soil pH (r = 5150). Therefore applications of these agro-wastes are effective in improving soil properties, increasing soil carbon and nitrogen stock. From the results of the work, application of 10 t/ha PD + 10 t/ha SDA which was the treatment combination that improved soil properties and growth performances of okra than other treatments studied is hereby recommended for soil carbon and nitrogen stock improvement and okra production in the region.
اظهر المزيد [+] اقل [-]Extraction and Characterization of Gelatin from Mackerel (Scomber scombrus) and Sea bass (Dicentrarchus labrax) Bones النص الكامل
2016
Yasemen Yanar | Mehmet Gökçin
The aims of this study were to determine the physicochemical properties of extracted gelatins from mackerel (Scomber scombrus) and sea bass (Dicentrarchus labrax) bones and compare with those of commercial fish and bovine gelatins. The yield of gelatin obtained from the bone of mackerel and sea bass were 5.98 and 6.20%, respectively. Two extracted gelatins showed higher protein content, lower moisture content compared to both commercial gelatins, indicates that the gelatin has considerably high purity. Melting temperatures of mackerel and sea bass bone gelatins were 25.5 and 23°C, respectively. Mackerel bone gelatin was yellow in appearance and higher L* value than both commercial gelatins. It can be concluded from the present study that mackerel and sea bass bone are a prospective source to produce gelatin in good yield with desirable functional properties comparable to commercially available mammalian and fish gelatins.
اظهر المزيد [+] اقل [-]Readability of Electronic and Visual Ear Tags in Hair Goat Kids النص الكامل
2016
Ferda Karakuş | Ayşe Özge Demir | Suna Akkol | Adem Düzgün | Murat Karakuş
This study aimed to evaluate the readability of electronic and visual ear tags in hair goat kids managed under extensive conditions. A total of 74 kids were identified with electronic and visual ear tags at birth. Readability of electronic and visual ear tags was 97.3% and 94.6% in static conditions at the end of 7 months, and 96.8% and 93.5% at the end of the first year after tagging, respectively. No breakages and electronic failures occurred during this study. Infected ear rate in electronic and visual ear tags was 45.9% and 17.6%, respectively. Under the conditions of this study, electronic and visual ear tags did not fulfill the International Committee for Animal Recording (ICAR) requirements (readability >98%) for an official animal identification device at the end of the first year after tagging. Therefore, low animal traceability with electronic and visual ear tags was determined by this study.
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