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Articles by Hayam Mohamed Abbas
Total Records ( 3 ) for Hayam Mohamed Abbas
  Hayam Mohamed Abbas , Fayza Mohamed Assem , Wafaa Mohamed Zaky , Jihan Mohamed Kassem and Elsayed Abouelfotowh Omer
  Background and Objective: There is a risk to use the artificial antioxidant materials in food sector. So, the current study was designed to figure out the properties of Ultra-filtrated (UF) soft cheese supplemented with natural antioxidant material as basil essential oil (Ocimum basilicum var. Genovese). Materials and Methods: The extracted basil essential oil (B-EO) was investigated for its main constituents by Gas Chromatography-Mass Spectrometry (GC-MS) as well as its antioxidant activity. The UF-soft cheese samples were traditionally prepared from buffalo’s milk retentate. Three treatments were achieved; the first was served as control while the second and the third samples were supplemented by B-EO at ratios of 0.005 (T1) and 0.010 (T2) μL/100 mL, respectively. The obtained data were statistically analyzed using SAS analysis method. Results: The results revealed that the main compound of B-EO was identified as linalool with 63.23%, while, the second was 1,8-cineol which reached to 11.69%. It was obvious, from obtained data, that B-EO had high antioxidant activity. Data also indicated that fortification of B-EO increased the antioxidant activity of the fortified cheese samples (T1 and T2) compared with control. Supplementation with B-EO had decreased the hardness, gumminess and chewiness of treated cheese samples than control one. On another side, judging degrees displayed that there were noticeable differences in flavor scores between treated and control samples. The treated samples with low level of B-EO (T1) were more favorable than those with high level (T2). Conclusion: It could be concluded that basil essential oil increased the antioxidant properties of UF-soft cheese samples and improved their rheological and sensorial characters, where the samples seemed to have refreshing and acceptable taste.
  Jihan Mohamed Kassem , Hayam Mohamed Abbas , Ashraf Gaber Mohamed , Wafaa Kamel Bahgaat and Tamer Mohammed El-Messery
  Background and Objective: Producing healthy and functional dairy products are still having great demand. The aim of present study was to prepare a new or imitated processed cheese spreads convenient to consumers who suffer from high blood pressure and also to prepare sweet processed cheese suitable for children. Materials and Methods: Pumpkin processed cheese spreads (PPCSs) were manufactured by using 3 ratios of pumpkin paste (5, 10 and 15% w/w) to serve 3 treatments (T1, T2 and T3, respectively) and compared with control. Chemical parameters like total solids, ash, protein, fat and fiber were achieved. Potassium and sodium contents were also displayed besides texture profile and antioxidant activity of PPCSs. Sensory evaluation was also carried out of all final samples. Statistical analysis was performed by using the User's Guide of SAS. Obtained data indicated that there were no significant differences in total solids and ash contents between treatments with different ratios of pumpkin paste and control samples. Results: For fiber content, it was increased by increasing the ratio of pumpkin paste comparing to control one. On the other side, the more concentration of pumpkin paste in cheese spread samples, the more content of potassium and the less content of sodium. Thus, increment the rate of pumpkin in processed cheese caused contract the ratio of sodium/potassium in the final product. Scavenging of free radicals of pumpkin-processed cheese samples were in rise by increasing the ratio of pumpkin percent. The highest percent of pumpkin paste (15%) had significantly (p<0.05) gained the highest content of phenolic compounds (205 mg/100 g gallic acid). Texture profile data revealed that addition of pumpkin paste in the blends decreased the firmness of processed cheese compared to control. Decreasing in firmness was inversely proportional with increasing pumpkin paste ratios in the blends. It was 7.289, 6.801, 5.952 and 4.961 N for control, T1, T2 and T3, respectively. Conclusion: It was concluded that preparing a sweet processed cheese spread analogue using 10% pumpkin paste gained the preferable acceptability and success to prepare new sweet product suitable for children and patients who suffer from hypertension. Treated samples had low sodium and more potassium contents.
  Hayam Mohamed Abbas , Wafaa Mohamed Zaky , Laila Khaled Hassan , Nadia Mohamed Shahein , Ashraf Gaber Mohamed , Nabil Mohamed Samy and Eman Sayed Abdelkader Farahat
  Background and Objective: Kaki (Diospyros kaki) is a famous and delicious fruit which have a very high nutritive value where it contains ascorbic acid, iron, flavonoid and polyphenols as well as fibers. The main purpose of this article was to study the influence of kaki fruit on the properties of sweet or salted-processed cheese samples to produce a novel type of cheese with high nutritive value. Materials and Methods: Sweetened and salted Kaki processed cheese-spreads samples were prepared by using cheese base. Two types of Kaki cheese were prepared beside control sample; the first was prepared by emerging 20% kaki juice and 12% sugar (T1). The second one was prepared by adding 20% kaki juice and 5% table salt (T2) and control sample (C). Prepared processed cheese samples were stored at 5±1°C for 3 months. All fresh samples were chemically analyzed for their total solids, total protein, fat, salt and soluble nitrogen contents. The values of SN and pH, color parameters, texture profile and the sensory evaluation were conducted during storage period. Results: The obtained data showed that soluble nitrogen content was less in sweet sample rather than salted one. Data revealed also that adding Kaki juice decreased the pH values of samples either in fresh or stored ones. The color data indicated that (L) stimuli (which expressed the degree of whiteness and darkness) was increased in the control rather than kaki fortified samples where the later showed yellowish-red color. The organoleptic evaluation revealed that fresh cheese samples in T1 gained the highest scores for appearance, flavor and overall acceptability. However, it had low degrees in color, texture and spreading quality. Conclusion: It could be concluded that prepared processed-cheese-spreads samples using kaki fruit was available with acceptable properties.
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