Mohamed Naguib Mohamed Abdelghany

Mohamed Naguib Mohamed Abdelghany
Cairo University | CU · Department of Botany and microbiology

PhD

About

15
Publications
2,575
Reads
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117
Citations
Additional affiliations
January 2016 - present
Cairo University
Position
  • Lecturer
Description
  • Lecturer of microbiology
Education
November 2012 - November 2016
Cairo University
Field of study
  • Microbiology

Publications

Publications (15)
Article
Full-text available
This study compared microbiological and chemical methods used in astaxanthin extraction from the exoskeleton of the shrimp species Penaeus japonicus and Penaeus semisulcatus. The microbiological method was performed using Saccharomyces cerevisiae (bakery yeast) or Lactobacillus acidophilus (from yogurt), followed by solvent extraction with hexane a...
Article
Astaxanthin has been extracted in the current study using ecofriendly methods. Compared to the chemical method, a natural method using flaxseed oil at different time intervals, a biological method using standard fungal and bacterial probiotics (the fungal probiotics are Saccharomyces cerevisiae and Candida utilis, while the bacterial probiotics are...
Article
Full-text available
This work aims at isolating a fungal source for l-asparaginase production to be applied in reducing acrylamide levels in coffee beans at non-cytotoxic levels. An l-asparaginase-producing fungus was isolated from an agricultural soil sample and identified as Penicillium crustosum NMKA 511. A maximum l-asparaginase activity of 19.10 U/mL was obtained...
Article
Full-text available
There is strong correlation between changes in abundance of specific bacterial species and several diseases including schistosomiasis. Several studies have described therapeutic effects of curcumin (CUR) which may arise from its regulative effects on intestinal microbiota. Thus, we examined the impact of CUR on the diversity of intestinal microbiot...
Article
Primary immunodeficiency diseases (PID), encompass a heterogeneous group of diseases, with increased susceptibility to recurrent, severe infections. Invasive fungal infections raise a serious concern related to their morbidity and mortality. Herein, we describe various fungal infections among different PID patients. Twenty-eight PID patients diagno...
Article
Full-text available
Laccases are oxidoreductases enzymes that belong to blue multi-copper oxidases. In the recent years, laccases have gained application in the field of textile, pulp and paper, and food industries. In this work, optimization of cultural conditions of the fungal species Aspergillus niger was performed by Taguchi orthogonal array statistical method to...
Article
Full-text available
Extracellular tyrosinase extracted from Saccharomyces cerevisiae was purified, characterized and assayed as medicinal agent. The crude enzyme activity was 7.99 U/ml and specific activity was 0.84 U/mg. The complete purification protocol was done. The final result showed one peak of pure tyrosinase with activity of 1.08 U/ml, specific activity of 2....
Article
The cell-free culture filtrate (CFF) of the fungi Fusarium chlamydosporum NG30 and Penicillium chrysogenum NG85 was tested to synthesize silver nanoparticles (AgNPs). The synthesized AgNPs were further characterized by means of transmission electron microscopy (TEM), dynamic light scattering (DLS) and Fourier transform infra-red (FTIR) spectroscopy...
Article
Full-text available
Milk clotting enzymes (MCE) produced by fungi have an important application in food and drug technology. In this study, the edible mushroom Pleurotus albidus was used as safe and efficient source of MCE. The produced MCE was purified by ammonium sulfate precipitation, dialysis, DEAE-Cellulose and Sephadex G-100 column chromatography. The full homog...
Article
Full-text available
The purified laccase of Aspergillus flavus NG85 isolated from Saint Catherine Protectorate, showed a molecular weight of 68.5 kDa. Its optimum activity obtained at enzyme concentration of 0.15 mg, substrate concentration of 10 mg/ml, temperature of 47.5 oC, pH of 5 and Km of 9.09 mg/ml. The enzyme retained 85% of its activity after 4 hours of incub...
Article
Full-text available
THE MICROFLORAL pictures of Saint Catherine protectorate, Giza Zoo Garden and Cairo University soil were studied. The obtained 31 microbial isolates were qualitatively and quantitatively screened for laccase production. Aspergillus flavus from Saint Catherine protectorate achieved highest laccase production on both solid and liquid media. Identific...
Article
Full-text available
In our search for new fungal isolates capable of degrading polycyclic aromatic hydrocarbons (PAHs) in soil, twenty one fungal isolates were recovered from Orman Garden, Wadi Degla Protectorate and benzene station soils. All tested fungi exhibited lignin peroxidase and manganese peroxidase activities in solid as well as in liquid cultures. However,...

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