Výsledky vyhledávání - "Doaa A. R. Mahmoud"

Mechanism of Microbial Biodegradation: Secrets of Biodegradation

Autor: Doaa A. R. Mahmoud

Publikováno v: Handbook of Biodegradable Materials ISBN: 9783031097096
Handbook of Biodegradable Materials ISBN: 9783030837839

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::672456dadca75a4a20a7913ad7bbd9bc
https://doi.org/10.1007/978-3-031-09710-2_6

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Preparation and characterization of antibacterial P2O5-CaO-Na2O-Ag2O glasses

Autor: A. A. Ahmed, A.A. Ali, Ahmed El-Fiqi, Doaa A. R. Mahmoud

Publikováno v: Journal of Biomedical Materials Research Part A. :132-142

P2O5-20CaO-(20 - x) Na2O-xAg2O and 60P2O5- 30CaO-(10 - x) Na2O-xAg2O glasses, x ¼ 0, 0.5,1, and 2 mol % were prepared using normal glass melting technique. The antibacterial activity of pressed disks of powdered glass (undoped and silver-doped glass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f426441e78e5b5fbf9786af5e0677b6e
https://doi.org/10.1002/jbm.a.33101

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Study on the preparation and properties of silver-doped phosphate antibacterial glasses (Part I)

Autor: Doaa A. R. Mahmoud, A. A. Ahmed, Ahmed El-Fiqi, A.A. Ali

Publikováno v: Solid State Sciences. 13:981-992

Silver-doped phosphate antibacterial glasses were prepared by the melting method. The antibacterial effects of some undoped and silver–doped glasses of compositions 65P2O5–10CaO–(25–x) Na2O, 70P2O5–20CaO–(10–x) Na2Oand (70–x) P2O5–3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c63c1e6c8f62eaf19a7a5c0922129c7
https://doi.org/10.1016/j.solidstatesciences.2011.02.004

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Production of 3,4-dihydroxy phenyl-l-alanine (l-DOPA) by Egyptian halophilic black yeast

Autor: Doaa A. R. Mahmoud, Magda A. El Bendary

Publikováno v: World Journal of Microbiology and Biotechnology. 27:39-46

Production of 3,4-dihydroxy phenyl-l-alanine (l-DOPA) using an Egyptian isolate of halophilic black yeast was studied. Optimum aeration level and incubation period for high yield production of l-DOPA were 50 ml medium/250 ml flask with 200 rpm and 36

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8afd063d1855048d00bb8b176b6a36f6
https://doi.org/10.1007/s11274-010-0424-5

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Immobilisation of Bacillus subtilis NRC33a levansucrase and some studies on its properties

Autor: Mona A. Esawy, A. F. A. Fattah, Doaa A. R. Mahmoud

Publikováno v: Brazilian Journal of Chemical Engineering v.25 n.2 2008
Brazilian Journal of Chemical Engineering
Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
Brazilian Journal of Chemical Engineering, Vol 25, Iss 2, Pp 237-246 (2008)
Brazilian Journal of Chemical Engineering, Volume: 25, Issue: 2, Pages: 237-246, Published: JUN 2008
Scopus-Elsevier

Bacillus subtilis NRC33a levansucrase was immobilised on different carriers using different immobilisation methods including physical adsorption, covalent binding, ionic binding and entrapment. The immobilised enzyme prepared by covalent binding on c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::add00938a7d3d432b8cd68c84cb914e5
https://doi.org/10.1590/s0104-66322008000200003

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Production of Levansucrase from Bacillus subtilis NRC 33a and Enzymic Synthesis of Levan and Fructo-Oligosaccharides

Autor: Mona A. Esawy, Ahmed F. Abdel-Fattah, Doaa A. R. Mahmoud

Publikováno v: Current Microbiology. 51:402-407

Bacillus subtilis NRC 33a was able to produce both inducible and constitutive extracellular levansucrase, respectively, using sucrose and glucose as carbon source. The optimal production of the levansucrase was at 30 degrees C. The effect of differen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee590392340cdeb9453b514c4a6c7c41
https://doi.org/10.1007/s00284-005-0111-1

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Forest Life Under Control of Microbial Life

Autor: Doaa A. R. Mahmoud

Publikováno v: New Advances and Contributions to Forestry Research

Microbial life has been present for at least 3,500 million years, and the earth itself was only formed about 4,600 million years ago. ''For much of its history, Earth was a planet of microbes. Even today, microbes dominate the living world in terms o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b514f1b07fd526f3798c5ad2fafe09e2
https://doi.org/10.5772/35193

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Preparation and characterization of antibacterial P₂O5-CaO-Na₂O-Ag₂O glasses

Autor: A A, Ahmed, A A, Ali, Doaa A R, Mahmoud, A M, El-Fiqi

Publikováno v: Journal of biomedical materials research. Part A. 98(1)

60P₂O₅-20CaO-(20-x) Na₂O-xAg₂O and 60P₂O₅-30CaO-(10-x) Na₂O-xAg₂O glasses, x = 0, 0.5,1, and 2 mol % were prepared using normal glass melting technique. The antibacterial activity of pressed disks of powdered glass (undoped and silver

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::bb610082878a5829536e2162a74089a4
https://pubmed.ncbi.nlm.nih.gov/21548067

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