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Articles by Hamdy A. Shaaban
Total Records ( 2 ) for Hamdy A. Shaaban
  M.M. Tohamy , Hamdy A. Shaaban , M.A. Ali and A.M. Hasanain
  Background and Objective: Supplementation of conventional foods with Spirulina platensis seems to be promising trend due to the nutritional value of such alga which is known as a rich source of protein, fatty acids, fiber, essential vitamins and minerals. Also, it have a functional properties due to the presence of anti-oxidants, omega 3, anti-viral and anti-cancer components. Therefore, the aim of the present study was to supplement processed cheese with Spirulina platensis in order to enhance the nutritional and health value of the final product. Materials and Methods: Processed cheese analog (PCA) was supplemented with 2, 4 and 6% of Spirulina platensis on powder form and 4% of this alga on slurry form. The chemical, rheological and sensory properties were evaluated for supplemented PCA as fresh and within 3 months of cold storages 5-7°C. Results: Supplemented PCA with 2% of algae showed the best sensory properties followed by 4% fortified sample, but the level of 6% was unacceptable. The chemical analysis of supplemented PCA showed an increase in the contents of protein, ash, fiber, selenium, zinc, iron, magnesium and potassium. Anti-oxidants activity was higher in supplemented PCA in comparison to control sample. With respect to the powder form of algae, application of slurry form improved more the organoleptic, physical and rheological properties of PCA properties. Conclusion: Supplemented PCA with Spirulina platensis proved to have excellent nutritional, functional and healthy properties to be used as nutraceutical food.
  Mahmoud A. Mailam , Howida Abd El-Razek and Hamdy A. Shaaban
  Background and Objective: The application of the exopolysaccharide-producing starter culture for improving the texture and technical properties and evaluating flavor profile of low-fat Ras cheese was studied. The experimental design was performed to compare flavour compounds of traditional and exopolysaccharide producing starters (EPS) for different levels of fat milk cheese. Materials and Methods: Control (4% fat) with traditional starter, T1 (0% fat) with EPS, T2 (1% fat) with EPS), T3 (2% fat) with EPS and T4 (3% fat) with EPS were used. The physicochemical, textural profile analysis and organoleptic properties of fresh and stored cheeses (4 months) were determined. Also, the microscopic structural changes in fresh low-fat Ras cheese with EPS were evaluated. Results: The results indicated that addition of EPS producing cultures with decreasing fat of cheese milk lead to an increase in the moisture of treatments as well as hardness, cohesiveness, springiness, chewiness and gumminess of the resultant cheese. The data indicated that control cheese (full-fat and without EPS-producing cultures) had the lowest values of acidity. The changes in pH values among all cheese treatments and during storage period followed opposite trend to that of titratable acidity. There were negative correlation between the rate of fat reduction and the values of SN (soluble nitrogen). Conclusion: Addition of EPS-producing cultures in Ras cheese milk improved sensory evaluation of resultant cheese, whereas cheese with 3% fat and EPS-producing culture (T4) selected as best Ras cheese sample.
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