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Production of Bioethanol from Waste Potato Texte intégral
2015
Merve Duruyurek | Cihan Dusgun | Mehmet Fuat Gulhan | Zeliha Selamoğlu
Using primary energy sources in World as fossil fuels, causes air pollution and climate change. Because of these reasons, people looking for renewable energy suppliers which has less carbondioxide and less pollution. Carbon in biofuels is producing from photosynthesis. For this, burning biofuels don’t increase carbondioxide in atmosphere. Scientists predict that plants with high carbonhydrate and protein contents are 21. centuries biofuels. Potatoes are producing over 280 million in whole world and Turkey is 6th potato producer. Turkey produces 5250000 tonne of potatoes. Approximately 20% of potatoes are waste in Niğde. Our study aimed to produce bioethanol from Solanum tuberosum by using the yeast Saccharomyces cerevisiae. As a result renewable energy sources can be produced from natural wastes.
Afficher plus [+] Moins [-]Risk Perception and Management Strategies in Dairy Farming: A Case of Adana Province of Turkey Texte intégral
2015
Seyit Hayran | Aykut Gül
This study aims to determine and analyse farmers’ risk perceptions and risk management strategies in dairy farming. Data were obtained in 2014 (December) and 2015 (February and March) from face-to-face interviews with 96 dairy farmers in Yüregir and Saricam district of Adana province of Turkey. Factor analysis was used in data reduction to identify a small number of factors related to risk sources and risk strategies in this study. Then, multiple regression model was used to evaluate the influence of socio-economic characteristics and communication behaviour on the farmers’ risk perceptions and risk management strategies using factor loadings. The results of this study show that the most important risk source that the farmers' perceive is variability in feed prices and risk management strategy that the farmers' perceive is take precautions to prevent disease. The results of factor analysis show that the risk scale consists of 8 factors explaining 70.24% of total variance. The internal consistency coefficient Cronbach Alfa of the scale is 0.808 and KMO is 0.732. The risk management scale consists of 6 factors explaining 67.78% of total variance. The internal consistency coefficient Cronbach Alfa of the scale is 0.775 and KMO is 0.746. According to the results, perceptions were farmer-specific, a number of socio-economic variables and communication behaviour are found to be related to risk and risk management. To improve risk management strategies is useful for farmers as well and might help them to avoid many risks and reduce losses.
Afficher plus [+] Moins [-]Effect of Olive Leaves Extract on Lipid Profile, Glucose and Feed Intake of Japanese quail Texte intégral
2015
Tawheed Ali Azeemi
In Afghanistan most times people are drinking olive leave tea for prevention and decline of higher lipid and glucose level, therefore the objective of the current study was to find out whether olive leaf extraction is having any effect on blood metabolites. The Japanese quail has been used for biological studies because of its easy management and large numbers in limited area. In this experiment quails (100 male and 100 Female) were reared on a farm owned by the Department of Animal science of Agriculture faculty of Nangrahar University. Quails were kept under optimum environmental during rearing period (20- 22 C and 65 % relative humidity). The Adaptation period was for 10 days. Feed was given add libitum during 24 h. In this study we had five treatments T0 served as control without any water supplementation, T1 (1g/L), T2 (2g/L), T3 (3g/L) and T4 (4g of olive leaf / litter of drinking water). The Experiment continued for 4 weeks at the end of week. By increasing level of the olive leave powder in water blood glucose, cholesterol and triglycerides levels declined significantly from 509 to 422.5, 204-144.5 and 245 to 192.5 respectively
Afficher plus [+] Moins [-]Determination of Bee Products Consumption Habits and Awareness Level in Some Provinces in Turkey Texte intégral
2015
Rahşan İvgin Tunca | Atilla Taşkın | Ufuk Karadavut
The purpose of this study was to evaluate the factors affecting the consumption of bee products and honey and also determine consumption habits and awareness of bee products in some selected province in Turkey. The main material of the study was formed by the original survey data which were collected from randomly selected 1112 people from Batman, Bursa, Diyarbakır, Erzincan, Kayseri, Kırşehir, Mersin, Muğla, Muş, Ordu, and Samsun as random provinces in 2014. The data in the study were examined in two parts. The first part consisted of the consumption habits and awareness of honey, whereas the preferences of individuals usage of bee product such as pollen, propolis, royal jelly and bee venom were examined in the second part. Multivariate logistic regression model was applied for each section including variables data for bee products. According to the survey, it was found that 39.6% of consumers consumed honey between 0-500 grams on a monthly basis. 51.2% of consumers bought honey from beekeepers, and 41% of them stated that they received from the market and bazaar. 5.9% of consumers believe the advertisement on television about bee product. 45.8% of consumers using honey stated that they could understand the quality of the honey. The proportion of consumers who kept a trademark for bee products was determined as 52.7%. Age of the consumer, honey that where consumers bought, honey brand preference and convincing of honey advertisement were significant for P
Afficher plus [+] Moins [-]Effect of Lactococcin BZ and Enterocin KP on the Activity of Yoghurt Cultures Texte intégral
2015
Nilgün Öncül | Zeliha Yıldırım | Metin Yıldırım
In this study, the effects of lactococcin BZ from Lactococcus lactis ssp. lactis BZ and enterocin KP from Enterococcus faecalis KP (1600 AU/mL) on the activities of three different yoghurt cultures (Y1 and Y2: CHR Hansen, Denmark; Y3: Sacco, Italy) were investigated. Lactic acid bacteria counts and pH values of the samples were determined during the incubation period (at 42°C for 24 h). It was found that lactococcin BZ had bactericidal effect against only one yoghurt culture whereas enterocin KP was effective against two yoghurt cultures. When lactococcin BZ and enterosin KP were used in combination (1:1), they showed bactericidal effect against two yoghurt cultures.
Afficher plus [+] Moins [-]Adaptation of Some Bread Wheat Cultivars to Kayseri Conditions Texte intégral
2015
Sancar Bulut
Number of bread wheat cultivars have significantly increased in recent years and research on adaptation capacities of such cultivars are not sufficient in Kayseri. This study was carried out to determine high-yield bread cultivars able to adapt the conditions of Kayseri Province in 2010-11 and 2011-12 cropping seasons. A total of 42 national bread wheat cultivars were used and adaptation capacities were determined for Kayseri Region. Significant differences were observed in entire traits of the years and cultivars. Grain-fill periods of cultivars varied between 33.9-40.5 days, plant heights between 76.0-121.7 cm, number of spike per m2 between 292.5-645.8 spikes, number of kernel per spike between 17.4-43.9 kernels, 1000 kernel weights between 32.9-40.1 g, kernel yields between 153.0-278.3 kg/da, hectoliter weights between 72.8-78.4 kg and protein ratios between 9.08-14.37%. Considering the dry conditions of Kayseri region, Bezostaja-1, Gün 91, Bayraktar 2000, Dağdaş 94, Karahan 99, Tosunbey and Nenehatun cultivars were recommended for high yield and quality.
Afficher plus [+] Moins [-]Molecular Detection of Aflatoxin Producing Strains of Aspergillus Flavus from Peanut (Arachis Hypogaea) Texte intégral
2015
Adeela Hussain | Awais Afzal | Muhammad Irfan | Kauser Abdulla Malik
Aflatoxins are the potential carcinogens produced as secondary metabolites by Aspergillus flavus. They have the ability to contaminate large number of food which ultimately affect the human population. Malt extract agar was selected for the growth of control stains of fungus. The aim of the study was to develop a reliable and quick method for the detection of aflatoxin producing strains in peanuts by using molecular approaches. Total 80 samples of infected peanuts were collected from four different cities of Punjab and checked for their aflatoxin contamination. For aflatoxin detection, three target genes nor1, ver1 and aflR were selected which was involved in the aflatoxin biosynthesis. In all examined cases, 24 out of 80 (30%) samples successfully amplified all three genes indicating aflatoxigenic activity. Discrimination between aflatoxigenic and non-aflatoxigenic strains were also determined on the basis of amplification of these three target DNA fragments. In this study, it was also demonstrated that only specific strains were able to produce the aflatoxin contamination in peanuts.
Afficher plus [+] Moins [-]Slope Gradient and Vegetation Cover Effects on The Runoff and Sediment Yield in Hillslope Agriculture Texte intégral
2015
Obaid ur Rehman | Muhammad Rashid | Rahina Kausar | Sarosh Alvi | Riaz Hussain
Slope Gradient and Vegetation Cover Effects on The Runoff and Sediment Yield in Hillslope Agriculture Texte intégral
2015
Obaid ur Rehman | Muhammad Rashid | Rahina Kausar | Sarosh Alvi | Riaz Hussain
Cultivation of field crops is a challenge and risky business in sloping areas. A study was conducted as a demonstration model for the sloppy lands of Fateh Jang, Pakistan. The objectives of this study were to monitor the runoff water and soil sediment loss under different vegetative covers and slope gradients in comparison with bare fallow on each slope gradient. Three artificial slope gradients i.e., 1%, 5% and 10% were established and three crops i.e., Wheat, Gram and Lentil were cultivated on each slope gradient. Soil and water losses were quantified against each slope gradient and every cover crop for the period of 4 years. Total soil sediment losses during this study were 51% in Lentil, 30% in Gram and 25% in Wheat were lesser compared with bare soil whereas, water losses from Lentil, Gram and Wheat were 69%, 75% and 73% lesser respectively while compared with bare plots. The highest soil and water losses were monitored at 10% slope gradient following 5% and then 1% slope gradients respectively.
Afficher plus [+] Moins [-]EFFECT OF SEED PRE-SOWING TREATMENTS ON THE GERMINATION AND EARLY GROWTH OF ALBIZIA LEBBECK SEEDS Texte intégral
2022
Kwakye, Joyce KWAKYE | Blankson, Sydney Stanley
ABSTRACT. Albizia lebbeck is a multipurpose tree that has many benefits for the environment and the end user. The extent to which this tree species is cultivated is very low due to seed coat dormancy, which causes a longer germination period and late seedling growth. This research was done at Kwame Nkrumah University of Science and Technology, located in Kumasi, Ghana, at the Department of Horticulture, to ascertain the effect of seed pretreatment on germination and early seedling growth. Germination was observed in seeds pretreated with hot water (100º) for 1 minute (T1), dry heat (90º) for 2 minutes (T2), in 6% hydrogen peroxide solution for 30 minutes (T3), cold water at room temperature for 24 hours (T4) and untreated seed (T5) as the control. The experiment was conducted using a randomised complete block design (RCBD) with three replications. The data obtained for seed germination percentage were statistically analysed using one-way analysis of variance in Statistix 7.0 software, and the least significant difference at 5% probability level was used to separate the means of height, collar diameter and number of leaves. A comparison between the pretreated and control seeds showed no significant difference (P > 0.05) on germination percentage, germination rate, and root and shoot dry weights of Albizia lebbeck. However, it had a positive influence (P < 0.05) on early growth characteristics. Seeds soaked in cold water (T4) had maximum early seedling growth. Hydrogen peroxide treatment (T3) yielded the highest collar diameter growth. Hot water treatment (T1) had the lowest height, collar diameter and number of leaves. Cold water at room temperature should be encouraged as a pretreatment method for the early growth of Albizia lebbeck seedlings.
Afficher plus [+] Moins [-]Development of a PCR/RLB Test for Meat Source Authentication in Processed Meat and Meat Products Texte intégral
2015
Ibrahim Abbasi | Al-Shareef Abdel-Kareem | Matouk Imad | Akkawi Muataz
Concern over food authenticity has increased as a result of an increase in the consumption of processed foods containing meat or animal products. This raises a number of issues where the presence of pork in such foods is considered unacceptable in most Muslim and Jewish communities around the world. It also applied to the prohibition of beef consumption among Hindus. In order to ensure the absence of unwished meat products or mixing of meats from different sources in processed foods, a specific and sensitive test is essential. For this purpose we developed a molecular test based on DNA amplification by polymerase chain reaction (PCR) of the cytochrome b gene followed by reverse line blot analysis (RLB). Using this method many samples may be treated simultaneously and meat origins can easily be detected from processed foods or foods containing mixed meat sources; also, added pork components such as fat may be identified by this methodology. The PCR/RLB method is considered to be a sensitive and specific technique; it can detect one nucleotide change within the PCR-amplified DNA segment.
Afficher plus [+] Moins [-]Prevalence and Antibiotic Susceptibility of Salmonella species Isolated from Beef and its Related Samples in Techiman Municipality of Ghana Texte intégral
2015
Frederick Adzitey | Joseph Kwame Nsoah | Gabriel Ayum Teye
Prevalence and Antibiotic Susceptibility of Salmonella species Isolated from Beef and its Related Samples in Techiman Municipality of Ghana Texte intégral
2015
Frederick Adzitey | Joseph Kwame Nsoah | Gabriel Ayum Teye
Salmonella species are important foodborne pathogens that have been implicated in a number of foodborne outbreaks. A total of 240 beef and its related samples obtained from the Techiman Municipality of Ghana were screened using the conventional method in the Food and Drug Administration-Bacteriological Analytical Manual (FDA-BAM)-USA. The overall prevalence of Salmonella species was 57.08%. The prevalence of Salmonella species ranged from 33.30% to 75.00% in the meat and its related samples (table, knife and apron), and 6.30% to 93.80% at the various meat sale points (locations where meat is sold). Prevalence of Salmonella species was significantly higher in meat (75.00%), table (60.00%) and knife (60.00%), than apron (33.33%). The most contaminated meat sale point was Kenten and Main markets (93.75%) and the least contaminated sale point was Sansema junction (6.25%). All the Salmonella species were susceptible to ciprofloxacin but resistant to vancomycin. Intermediate resistances occur for all the antibiotics except ciprofloxacin and vancomycin. The Salmonella species also exhibited 23 antibiotic resistant patterns with the pattern EVa (erythromycin and vancomycin) being the commonest (exhibited by nine different isolates). Multiple antibiotic index (MAR index) ranged from 0.11 to 0.67. This study revealed that beef and its related samples in Techiman markets are contaminated with Salmonella.
Afficher plus [+] Moins [-]Ciclo de vida, hábitos y enemigos naturales de Neoleucinodes elegantalis (Guenée, 1854), (Lepidoptera: pyralidae), pasador del fruto del lulo Solanum quitoense Lam. en el Valle del Cauca Texte intégral
1991
Muñoz L., Edilberto | Serrano P., Alberto | Pulido, Jaime I. | De la Cruz L., Jaime
Life cycle and habits studies of Neoleucinodes elegantalis under laboratory and field conditions. The life cycle under laboratory conditions (24°C, 74% RH) were for the egg, larvae and pupae 5.86; 24.58 and 12.33 days respectively. Longevity was 6.83 days for the female and 4.00 days for the male. Larva showed five instars each one with a duration of 3.58; 3.33; 4.16, 4.45 and 8.70 days. Under field condition (2100 m, 17C, + 80% RH), larva stage reached and average of 26 days. Oviposition in seven days reached an average at 93 eggs. Parthenogenesis was not observed. Natural enemies: Encyrtidae, possibly Copidosoma, parasiting egg and hatching in larvae at the last instar; 2.500 observed showed 1.6% parasitism Tachinidae 0.08% parasitism 527 pupae were observed showing 0.38% parasitism for Ichneumonidae. 400 pupae were observed showing 55% parasitism for Beauveria. Eggs laid on L. sculentum showed 81.93% parasitism for Trichogramma sp. | El cilo de vida de N. elegantalis en condiciones de laboratorio (ICA-Palmira, 1006 msnm., 24°C y 74% HR) para los estados de huevo, larva y pupa fue de 5.8, 24.58, 12.33 días en promedio; la longevidad de la hembra y del macho fue de 6.83 y 4.00 días. La larva no se alimentó del corión y presentó cinco instares (5.58, 3.333,4.416,4.450 y 8.70 días). En condiciones de campo (pradera, 2.100 m, 17C y + 80% HR) solo se pudo determinar la duración del estado de larva (26 días en promedio). La oviposición en 7 días fue de 93 huevos; no se presentó partenógenesis. Se encontraron los siguientes enemigos naturales: Encyrtidae, posiblemente Copidosoma sp, parásito de huevos que emerge en larvas de último instar; en 2.500 larvas evaluadas presentó un parasitismo de 1.6%. Un Tachinidae parasitó 0.08% de 2.500 larvas evaluadas. Un Ichneumonidae, parasitó 0.38% de 527 pupas evaluadas. Un entomopatógenos, posiblemente Beauveria, parasitó el 55% de 400 pupas evaluadas. Se registró Chrysopa predatando huevos. En posturas colocadas sobre tomate de mesa se evaluó un parasitismo del 81.93% por Trichograrnma spp.
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