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Antioxidant Activity and Phenolic Content of Apple Cider
2015
Nilgün Havva Budak | Filiz Ozçelik | Zeynep Banu Güzel-Seydim
Fruit and vegetables are an important component of a healthy diet and the main antioxidant suppliers in the human diet. Consumption of foods derived from fruits and vegetables is also essential; fruit juices, ciders, wines, and vinegars also contain significant amounts of polyphenolic compounds. The aim of the study was to determine the effect maceration of antioxidant activity and phenolic content of apple cider. Red delicious apples were used to produce natural apple cider with and without inclusion of maceration. Samples were taken from fresh red apple juice, macerated samples and apple cider. Apple cider (maceration was applied) (CAM) had the highest total phenolic content, chlorogenic acid, ORAC and TEAC levels. Chlorogenic acid was the dominant phenolic substance in apple juice and cider samples and chlorogenic acid was increased with maceration process.
Afficher plus [+] Moins [-]PCR Based Detection of Shiga Toxin Producing E. coli in Commercial Poultry and Related Environments
2015
Homaira Anzum Himi | Md. Shafiullah Parvej | M. Bahanur Rahman | K M Nasiruddin | Wahedul Karim Ansari | Md. Mostakin Ahamed
Shiga toxin (Stx)-producing E. coli (STEC) is the most important foodborne pathogen which is the causal agent of mild diarrhea, bloody diarrhea, hemolytic-uremic syndrome (HUS) in human. The present study was designed to determine the prevalence and identification of Shiga toxin (Stx)-producing E. coli in poultry, detection of its source of infection in poultry and transmission pattern to human. For this purpose a total of 150 samples (cloacal swab-60, feed -15, water-15 and egg -60) were collected and analyzed in bacteriology laboratory by cultured in different bacteriological media followed by gram’s staining, biochemical tests and Polymerase Chain reaction (PCR). The PCR was performed by targeting 16s rRNA gene and shiga toxin producing gene in E. coli. Out of 150 collected samples, E. coli was found in 81 (54%) samples. Presence of E. coli was 100% in both feed (n=15) and egg (n=60), whereas 10% in cloacal swab (n=6). Water samples were totally free of E. coli. The stx2 gene was detected in all samples whether all samples were negative for stx1 gene. The study revealed that, poultry feed acts as a source of E. coli infection in poultry, which may be transmitted to environment and human via meat or eggs. Antibiotic sensitivity test revealed that isolated bacteria were highly sensitive to Ciprofloxacin.
Afficher plus [+] Moins [-]Study on Climatic Variation and Its Effect on Vegetable Type Soybean Genotypes at Khumaltar, Lalitpur in the Last Ten Years
2015
Santosh Raj Tripathi | Jiban Shrestha | Jagat Devi Ranjit | Reshma Neupane
Soybean (Glycine max L. Merril) is widely grown in the mid hills as intercrop with maize or in paddy bunds, while it is gaining popularity as sole crop in terai and inner terai. Mean temperature at Khumaltar during soybean growing period was mostly fluctuating; but we observed an increasing trend in temperature. Amount of rainfall was not changed dramatically but number of rainy days was decreased during study period. Rainfall during germination time increase soil moisture which also increase germination and found higher early stand. Days from sowing to 50% flowering and 90% maturity were short in the case of higher minimum temperature and low rainfall. Among the genotypes, AGS-377, AGS-378, AGS-379 and Tarkari Bhattmas-1 were more sensitive. However, seed yield decreased in the case of higher temperatures and low rainfall. Cool night temperatures and high moisture increased disease incidence in soybean which, eventually reduced yield. In last three years, plant suffered from moisture stress during early vegetative stage and high moisture during late vegetative stage which reduced seed yield and seed weight. In conclusion, we found that genotypes like AGS- 360, Sathiya and Tarkari Bhatmas-1 are very sensitive to climatic variation.
Afficher plus [+] Moins [-]The Symptoms of Herbicidal Action: The Case of Aclonifen
2015
Özgür Kıvılcım Kılınç
The symptoms which were directly bound to the biochemical mode of action of an herbicide, other symptoms result from an indirect consequence of this action. The symptoms of herbicidal action deeply differed and that the climatic factors during the two first weeks after treatment could change definitely the result of the selective herbicide action. The repetitive observation of symptoms allows to inform the farmer about the tolerance or resistance of certain plant species, including the culture, for instance through the appearance of symptoms on the first leaves of the seedlings and their absence in the following leaves. As a whole, the accurate observation of herbicidal symptoms on plants is the essential, rapid and non-expensive analysis of treatment effectiveness at the field scale. The purpose of the current report is to describe the symptoms of a very complex herbicidal action, that of aclonifen involving two modes of action for the same molecule, approximately at the same concentration, and to compare these symptoms under field conditions and under controlled conditions, for a better understanding.
Afficher plus [+] Moins [-]Development of a PCR/RLB Test for Meat Source Authentication in Processed Meat and Meat Products
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 [-]A Research on Red Meat Consumption and Preferences: A Case Study in Tekirdağ Province
2015
Ebru Onurlubaş | Neslihan Yılmaz | Hasan Gökhan Doğan | Halil Kızılaslan
In this study, 384 persons have been subjected to questionnaire made in order to determine the red meat consumption and preferences of the people living in the central district of Tekirdağ province. In the study it was determined that all the consumers consumed red meat. According to the findings of the research, the annual red meat consumption per capita was determined to be 34.22 kg. Considering the red meat consumption of the people subjected to research, it was determined that beef meat was the most preferred kind among all the other kinds of red meat. In the study, it was determined that in red meat buying place preference consumers prefer traditional retailers such as butcher been specialized. Consumers prefer red meat due to be the most nutritious, respectively be healthy, delicious, habit and easy to access. It was determined that 47.5% of consumers participated in the study were ready to pay extra for red meat in the food safety. It was determined 75.6% people participated in the study consume more red meat if the price of red meat cheapens. A logit model was used for analyzing the factors that influence the red meat consumption of the families participating in this research. According to the logit model results, it was determined that the families’ red meat consumption amount is affected from statistical variables such as; number of family members, education level, spouse's employment status, income, cheapening of the price of red meat .
Afficher plus [+] Moins [-]The Nutritive and Feeding Value of Olive Cake for Ruminants
2015
Gürhan Keleş
The factor affecting nutritive and feeding value of olive cake (OC) was evaluated and, some suggestion was made regarding using olive cake in ruminant nutrition. It is evaluated that the nutritive value of OC can be able to support maintenance requirement of ruminant, although its nutritive value is affected by different factors. However, when taking into consideration of expense needed for preservation of OC, it is wise to use OC in nutrition after de-stoning. The crude protein, ether extract, NDF, lignin and non-fiber carbohydrates content of partly de-stoned OC (POC) was determined as 75 (56-93), 126 (68-184), 571 (443-700), 222 (174-269) and 141 (55-227) g/kg dry matter (DM). These values show that POC is a valuable source of ruminant feed. Besides, high and quality ether extract content of OC separates it from other feed and made it a special feed. Treatment with alkali increases the degradability and in vivo digestibility parameters of OC. Therefore, ensiling allowing the treatment with additives is best option to preservation of OC. Even, additional extraction of oil from POC decreases its nutritive value; studies showed that POC after additional oil extraction has still favorable nutritive value. Studies showed no adverse effect when POC substitute 20% of ration of feedlot lamb. For dairy animal, it is evaluated using POC to provide 15-20 g/kg DM oil when it substitute of 10-20% of total ration allow to produce more milk with increased fat and quality. In conclusion, de-stoning process turns OC to a valuable feed source, allows reduce feed cost, and increase animal performance and product quality. However, because nutritive value of OC affecting from very different factors, it can be propose analyze its nutritive value before using it in ruminant nutrition.
Afficher plus [+] Moins [-]Fixing Methods of Type in Sheep and Goat Breeding
2015
Hilal Tozlu Çelik | Mustafa Olfaz
Improvement studies are conduct to increasing of productivity native sheep breeds. This studies requires being quite comprehensive and disciplined. Improvement studies to achieve the desired characteristics and in which phase of finish is crucial. In this review, we focus on obtaining and fixing type in order to need to be implemented methods in sheep and goats.
Afficher plus [+] Moins [-]Absorption Of Dietary Lipid Components
2015
Abdulkadir Hurşit
Although the digestion and absorption of lipids that are necessary for the survival of living organisms are well known in general terms, nevertheless how different lipids to be digested, how it is distributed into the bloodstream, and how to be used by the cells, are unknown issues by most non specialist people. In recent years, knowledge of lipid digestion and absorption has expanded considerably. More insight has been gained in the mechanism of action of H + pump as a transport system in fatty acid absorption. New knowledge gained on the structure-function relationship and mechanisms of action of several lipolytic enzymes in the gastrointestinal tract. This work intends to give an up to date view of lipid digestion and absorption.
Afficher plus [+] Moins [-]Estimation of Length-Weight Relationship and Proximate Composition of Catfish (Clarias gariepinus Burchell, 1822) from Two Different Culture Facilities
2015
Olaniyi Alaba Olopade | Mercy Gbaramana | Nenibarini Zabbey
This study was carried out to determine and compare the proximate composition and length weight relationship of C. gariepinus from two culture systems (earthen and concrete ponds). The fish samples were collected from three fish farms with same cultural condition in different areas of Obio-akpor Local Government Area of Rivers State, Nigeria. Result on the length- weight relationship revealed that C.gariepinus reared in concrete tank had a total length of 15.50- 49.00cm with a mean of 32.71cm and weight of 150-625g, while total length of C. gariepinus reared in the earthen pond ranged from 19.90-58.0cm with a mean of 39.8cm and weight of 195-825g. The T- test shows that the total length of earthen pond were significantly higher than the concrete tank and the weight in the earthen pond was significantly higher than the concrete tank. Parameters of proximate composition analysed were moisture, protein, lipid, carbohydrate, ash and fiber from the fish flesh. Protein content showed a significantly higher in the earthen ponds than the concrete tanks. Ash contents varied from 1.5±1.66-7.4±0.67% in the concrete tanks and were significantly higher than the earthen ponds which ranged from 3.1±0.94-4.5±2.11%. Lipid was significantly higher in earthen ponds than concrete tanks. Generally, the two culture systems have a significant influence on length–weight relationship and nutritional value of C. gariepinus. However, C. gariepinus reared in concrete tank had a heavier body weight than earthen pond and also C. gariepinus reared in earthen pond had highest nutritive values than the concrete tank.
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