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Search Results: 1 - 10 of 167889 matches for " Fatma H. Ali "
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Effect of Growth Enhancers on Quality of Chicken Meat During Cold Storage
Fatma H. Ali,D.A. Zahran
Advance Journal of Food Science and Technology , 2010,
Abstract: This study was conducted to assess the effect of some growth enhancers as dietary onion & garlic (Allium sativum) and vitamin E supplementation with water on the meat quality parameters of broiler chicken. A total of 150 chicks were divided into 3 groups, 50 birds per treatment. The first group was fed control diet, the second group fed control diet supplemented with onion 2% and garlic 2% and the third group fed on control diet with vitamin E mixed with water. Birds were slaughtered at the end of the trial to evaluate pH , moisture content, cooking loss, shear force, instrumental color and fatty acids composition of refrigerated (5±1oC for 6 days) and frozen (3 and 6 months) samples. There was a significant decrease in the mean pH, shear force, a*- and b*- values and cooking loss in samples from chicken dietary supplemented with onion & garlic, and also in chicken (supplemented) with vitamin E mixed with water compared with the control. The mean moisture contents of chicken samples were not significantly influenced by the used growth enhancers. There was a numeric decrease in total saturated fatty acids (TSF %) and an increase in total unsaturated fatty acids (TUS %) in chicken samples (supplemented) with vitamin E mixed with water than control and which supplemented with onion & garlic. Palmitic was the predominant saturated fatty acid, while oleic was the predominant unsaturated fatty acid. It could be concluded that the supplementation of onion & garlic and vitamin E improved chicken meat quality during refrigerated and frozen storage.
Growth, chemical composition and soil properties of Tipuana speciosa (Benth.) Kuntze seedlings irrigated with sewage effluent
Hayssam M. Ali,Mohamed H. Khamis,Fatma A. Hassan
Applied Water Science , 2012, DOI: 10.1007/s13201-012-0027-4
Abstract: This study was carried out at a greenhouse of Sabahia Horticulture Research Station, Alexandria, Egypt, to study the effect of sewage effluent on the growth and chemical composition of Tipuana speciosa (Benth.) Kuntze seedlings as well as on soil properties for three stages. The irrigation treatments were primary-treated wastewater and secondary-treated wastewater, in addition to tap water as control. Therefore, the treated wastewater was taken from oxidation ponds of New Borg El-Arab City. Results of these study revealed that the primary effluent treatment explored the highest significant values for vegetative growth and biomass, compared to the other treatments. In addition, the higher significant concentration and uptake of chemical composition in different plant parts were obtained from the primary effluent treatment during the three stages of irrigation. It was found that the concentration of heavy metals in either plant or soil was below as compared to the world-recommended levels. These findings suggested that the use of sewage effluent in irrigating T. speciosa seedlings grown in calcareous soil was beneficial for the improvement of soil properties and production of timber trees, and also important for the safe manner of disposal of wastewater.
Electrochemical Behavior of Zn-Ni Alloys in Borate Buffer Solutions
Ayman M. Zaky,Fawzi H. Assaf,Fatma El Zhraa A. H. Ali
ISRN Materials Science , 2011, DOI: 10.5402/2011/356863
Abstract:
Heavy metal residues in beef carcasses in Beni-Suef abattoir, Egypt
Fathy A. Khalafalla,Fatma H. Ali,Fredi Schwagele,Mariam A. Abd-El-Wahab
Veterinaria Italiana , 2011,
Abstract: A total of 300 samples were collected from cattle slaughtered in the Beni-Suef abattoir in Egypt. Samples included muscle, liver and kidney. Animals were randomly selected from the slaughter line. The age of the slaughtered cattle was less than three years (18-30 months). Samples were packed separately in plastic bags, identified and stored at -18°C until analysis which was performed at the Max Rubner Institute in Kulmbach, Germany, for the following heavy metals residues: lead, cadmium, mercury, arsenic, chromium and nickel in beef muscle, liver and kidney samples. The results revealed that the overall mean residual levels of lead were 8.77 μg/kg, 42.70 μg/kg and 109.42 μg/kg fresh weight in muscle, liver and kidney samples, respectively, while the mean residual levels of cadmium were 1.40 μg/kg, 14.16 μg/kg and 62.56 μg/kg fresh weight, respectively, and the mean arsenic residual levels were 5.06 μg/kg, 4.64 μg/kg and 14.92 μg/kg fresh weight, respectively. The mean residual levels of mercury were 3.91 μg/kg, 5.81 μg/kg and 10.14 μg/kg fresh weight, respectively, and the residual levels of chromium were 11.20 μg/kg, 21.85 μg/kg and 25.49 μg/kg fresh weight, respectively. Finally, the mean residual levels of nickel were 21.17 μg/kg, 14.59 μg/kg and 34.95 μg/kg fresh weight, respectively. The mean values of all heavy metals examined were low and did not exceed the permissible limits adopted by different organisations. Most heavy metals accumulated in higher concentrations in the kidney in comparison to the liver and muscle.
Propolis as a natural decontaminant and antioxidant in fresh oriental sausage
Fatma H. Ali,Gehan M. Kassem,Osama A. Atta-Alla
Veterinaria Italiana , 2010,
Abstract: The authors evaluate the effect of propolis on the shelf-life and different quality criteria of fresh oriental sausage. Experimentally processed fresh oriental sausage treated with 0.6% ethanolic extract of propolis and control samples were kept in a refrigerator at 5°C and examined every 3 days until signs of spoilage were observed. Both groups were investigated for sensory, chemical and microbiological deteriorative criteria. The results revealed that control samples decomposed after 12 days, while treated samples had longer shelf-life as they decomposed after 21 days. In general, the thiobarbituric acid (TBA) value (mg malondialdehyde/kg) and total volatile bases nitrogen (TVB-N) mg/100 g increased gradually in all samples examined, with a significantly lower level for treated samples than for controls. In addition, a gradual increase in the microbiological load of control samples throughout the storage time was observed, whereas proteolytic, lipolytic and total mould and yeast counts were 6.39 ± 0.41, 6.0 ± 0.57 and 6.6 ± 0.53 log10 cfu/g, respectively, at day 12 and were rejected. Such counts were slightly lower in treated samples up to day 15 of storage, followed by a gradual increase until the end of storage. Propolis is recommended as a preservative in fresh oriental sausage processing.
Sensitivity analysis for parametric vector optimization problems using differential equations approach
Fatma M. Ali
International Journal of Mathematics and Mathematical Sciences , 2001, DOI: 10.1155/s0161171201002721
Abstract: A new method for obtaining sensitivity information for parametric vector optimization problems (VOP)v is presented, where the parameters in the objective functions and anywhere in the constraints. This method depends on using differential equations technique for solving multiobjective nonlinear programing problems which is very effective in finding many local Pareto optimal solutions. The behavior of the local solutions for slight perturbation of the parameters in the neighborhood of their chosen initial values is presented by using the technique of trajectory continuation. Finally some examples are given to show the efficiency of the proposed method.
Quality Evaluation of Some Fresh and Imported Frozen Seafood
Fatma Hassan Mohamed Ali
Advance Journal of Food Science and Technology , 2011,
Abstract: This work was done to evaluate the quality parameters of fresh and imported frozen seafood (fillets and shrimp). A total of 120 seafood samples, fillets and shrimp (fresh and imported frozen) 30 each, collected from fish markets at Giza Governorate were sensory, bacteriological, chemical investigated. Panelists rejected 5.0 (16.6%) and 0.0 (0.0%) of fresh fillets and shrimp samples, while the number raised up to 12.0 (40.0%) and 15.0 (50.0%) of frozen fillets and shrimp samples respectively. Fresh seafood had a significant lower (p<0.05) pH values in compared to frozen products. There were observed significant difference (p<0.05) in the TBA and TVB-N values between the fresh and frozen seafood samples. All fresh and frozen seafood samples were judge as safe food from microbiological point of view. The total proteolytic, lipolytic, psychrotrophic and pseudomonas/aeromonas counts for all examined seafood samples were lie within the standard permissible limits. L. monocytogenes could not be detected from fresh or frozen fillets. Few freqyency of L. monocytogenes found in fresh and imported frozen shrimp. As well as V. parahaemolyticus and Y. enterocolitica were recovered from examined fresh and frozen seafood samples. The public health significance of the isolated organisms was also discussed. The quality of fresh fillets and shrimp were better than that of imported frozen one.
Unusually Large Skin Tag of Labium Majus  [PDF]
Ali Galip Zebitay, Ilker Kahramanoglu, Olcay Ilhan, Fatma Ferda Verit
Open Journal of Obstetrics and Gynecology (OJOG) , 2014, DOI: 10.4236/ojog.2014.412097
Abstract:

Background: Skin tags (achrochordons, fibroepithelial polyps) are pedunculated lesions which commonly occur in areas of skin fold such as the neck, the axillae, the eyelids. Case Presentation: Herein a large achrochordon of the left labium majus is presented. Total excision of the lesion was performed and histopathology confirmed the diagnosis of achrochordon. Conclusion: Large skin tags on genitourinary region can be confused with a malignancy. Excision of these types of skin tags is recommended for pathological examination.

Interspecific Nematode Signals Regulate Dispersal Behavior
Fatma Kaplan, Hans T. Alborn, Stephan H. von Reuss, Ramadan Ajredini, Jared G. Ali, Faruk Akyazi, Lukasz L. Stelinski, Arthur S. Edison, Frank C. Schroeder, Peter E. Teal
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0038735
Abstract: Background Dispersal is an important nematode behavior. Upon crowding or food depletion, the free living bacteriovorus nematode Caenorhabditis elegans produces stress resistant dispersal larvae, called dauer, which are analogous to second stage juveniles (J2) of plant parasitic Meloidogyne spp. and infective juveniles (IJ)s of entomopathogenic nematodes (EPN), e.g., Steinernema feltiae. Regulation of dispersal behavior has not been thoroughly investigated for C. elegans or any other nematode species. Based on the fact that ascarosides regulate entry in dauer stage as well as multiple behaviors in C. elegans adults including mating, avoidance and aggregation, we hypothesized that ascarosides might also be involved in regulation of dispersal behavior in C. elegans and for other nematodes such as IJ of phylogenetically related EPNs. Methodology/Principal Findings Liquid chromatography-mass spectrometry analysis of C. elegans dauer conditioned media, which shows strong dispersing activity, revealed four known ascarosides (ascr#2, ascr#3, ascr#8, icas#9). A synthetic blend of these ascarosides at physiologically relevant concentrations dispersed C. elegans dauer in the presence of food and also caused dispersion of IJs of S. feltiae and J2s of plant parasitic Meloidogyne spp. Assay guided fractionation revealed structural analogs as major active components of the S. feltiae (ascr#9) and C. elegans (ascr#2) dispersal blends. Further analysis revealed ascr#9 in all Steinernema spp. and Heterorhabditis spp. infected insect host cadavers. Conclusions/Significance Ascaroside blends represent evolutionarily conserved, fundamentally important communication systems for nematodes from diverse habitats, and thus may provide sustainable means for control of parasitic nematodes.
Physical Properties of the ZnxCd1-x Se Alloys: Ab-Initio Method  [PDF]
Mohammed Ameri, Meriem Fodil, Fatma Z. Aoumeur-Benkabou, Zoubir Mahdjoub, Fatima Boufadi, Ali Bentouaf
Materials Sciences and Applications (MSA) , 2012, DOI: 10.4236/msa.2012.311112
Abstract: The present work performs self-consistent ab initio full-potential linear muffin-tin orbital (FP-LMTO) method to study the structural and electronic properties of the ternary ZnxCd1-xSe alloy, based on density functional theory (DFT). In this approach, both the local density approximation (LDA) and the generalized gradient approximation (GGA) were used for the exchange-correlation potential calculation. The ground-state properties are determined for the bulk materials CdSe, ZnSe and their alloy in cubic phase. In particular, the lattice constant, bulk modulus, electronic band structures and effective mass. We mainly showed deviation of the lattice parameter and bulk modulus from Vegard’s law of our alloys. We also presented the microscopic origins of the gap bowing using the approach of Zunger et al. The results are compared with other theoretical calculations and experimental data and are in reasonable agreement.
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