Mohsen E. Ibrahim

Activators and Inhibitors of α-glucosidase from Penicillium chrysogenum

Hamed M. El-Shora, Mohsen E. Ibrahim & Mohammad W. Alfakharany · Annual Research & Review in Biology · 2018

α-glucosidase (EC: 3.2.1.20) from Penicillium chrysogenum Thom ATCC 10106 was induced by GSH at the lower concentrations. H2O2 was inhibitor at all tested concentrations and the IC50 was 92.2%v/v. AMP, ADP and ATP enhanced the activity revealing that α-glucosidase is endothermic...

Open access Research Article 10.9734/ARRB/2018/38408

Manganese Peroxidase from Trichoderma harzianum and Increasing Its Efficiency for Phenol Removal from Wastewater

Hamed M. El-Shora, Mohsen E. Ibrahim, Reyad M. El-Sharkawy & Mohamed R. Elmekabaty · Journal of Advances in Microbiology · 2017

Manganese peroxidase (MnP) was isolated and purified from T. harzianum. The free and immobilized enzyme was activated by thioglycolate and reduced glutathione (GSH). After treatment with thioglycolate, the Vmax values for the free, alginate-immobilized MnP (alginate-E) and chitos...

Open access Research Article 10.9734/JAMB/2017/36798

Immobilization and Thermostability of Manganese Peroxidase from Trichoderma harzianum

Hamed M. El-Shora, Mohsen E. Ibrahim & Mohamed R. Elmekabaty · Microbiology Research Journal International · 2017

The aim of the present investigation was to isolate Manganese peroxidase (MnP) (EC 1.11.1.13) from Trichoderma harzianum. The optimal pH and temperature for the enzyme production were 5.0 and 30°C. The best carbon and nitrogen sources were sucrose and yeast extract. The best prod...

Open access Research Article 10.9734/MRJI/2017/35754