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Browsing by Author El Shebini, Salwa Mostafa

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  • Dietary supplement for relieving menopausal symptoms in Egyptian perimenopausal women

    • Authors: El Shebini, Salwa Mostafa;  Advisor: -;  Participants: Fouad, Suzanne; Abdel-Moaty, Maha; Ahmed, Nihad Hassan; Hussein, Ahmed Mohamed Saied; Essa, Hend Abass; Tapozada, Salwa Tawfic (2020)

  • All participants showed marked improvement in psychological, urogenital, and somatic symptoms after intervention. Data of this study showed that the blend had a beneficial impact on the physical, psychological, and mental health in perimenopausal women. So, functional foods must be considered in controlling different menopausal annoying symptoms; perimenopausal women can use this blend as a safe and effective food supplement.
  • BB

  • Statistical optimization of chemical modification of chitosan-magnetic nano-particles beads to promote Bacillus subtilis MK1 α-amylase immobilization and its application

    • Authors: El Shebini, Salwa Mostafa;  Advisor: -;  Participants: Fouad, Suzanne; Abdel-Moaty, Maha; Ahmed, Nihad Hassan; Hussein, Ahmed Mohamed Saied; Essa, Hend Abass; Tapozada, Salwa Tawfic (2020)

  • B. subtilis MK1 α-amylase was successfully immobilized on chitosan-magnetic nano-particles using a method combining the advantages of both physical adsorption and covalent binding. The beads were chemically modified using polyethyleneimine (PEI) followed by glutaraldehyde (GA). Aminated beads by (PEI), activated beads by (GA), and immobilized enzyme on activated beads were characterized using FTIR. Morphological examinations of the beads surface before and after conjugation with the α-amylase enzyme were carried out using scanning electron microscope (SEM). Chemical modification parameters of the beads were optimized using response surface methodology based on central composite design...