Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ahmed F Abdel, Fattah"'
Milk clotting enzyme (MCE) from Bacillus circulans 25 was immobilized by covalent binding, ionic binding and entrapment methods using various carriers. MCE covalently immobilized on activated chitosan polymer with the bifunctional agent glutaraldehyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::829de44446deaa20c82195530d4acbeb
https://doi.org/10.21203/rs.3.rs-704571/v1
https://doi.org/10.21203/rs.3.rs-704571/v1
Publikováno v:
Brazilian Journal of Chemical Engineering v.35 n.3 2018
Brazilian Journal of Chemical Engineering
Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
Brazilian Journal of Chemical Engineering, Vol 35, Iss 3, Pp 847-856
Brazilian Journal of Chemical Engineering
Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
Brazilian Journal of Chemical Engineering, Vol 35, Iss 3, Pp 847-856
The production of milk-clotting enzyme (MCE) by free and immobilized Bacillus circulans 25 cells was investigated. The investigation evaluates cell immobilization through entrapment and covalent binding to different carriers. B. circulans 25 cells im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c04f89e22c4e77df08aa3ede3b8715a6
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322018000300847
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322018000300847
Autor:
Abdel Gawad M. Hashem, Samia A. Ahmed, Shireen A.A. Saleh, Nefisa M.A. El-Shayeb, Ahmed F. Abdel-Fattah
Publikováno v:
Brazilian Journal of Microbiology. 46:23-28
Aspergillus niger β-glucosidase was modified by covalent coupling to periodate activated polysaccharides (glycosylation). The conjugated enzyme to activated starch showed the highest specific activity (128.5 U/mg protein). Compared to the native enz
Autor:
null Amal M. Hashem, null Mona A. El-Refaei, null Hasan M. Gebril, null Ahmed F. Abdel-Fattah
Publikováno v:
Journal of Basic & Applied Sciences. 8:344-352
Dextransucrase from Leuconostoc-paramesenteroides was immobilized using different immobilization techniques. Entrapment in calcium alginate (2%) proved to be the most suitable technique (27.6% yields). The operational stability of the immobilized was
Publikováno v:
Carbohydrate Polymers. 87:2109-2113
Water hyacinth was pretreated, under variable conditions, with NaOH, alkaline H2O2, peracetic acid and sodium chlorite. Combined pretreatments included sodium chlorite with each of NaOH, alkaline H2O2 and peracetic acid. Combined pretreatment with 0.
Publikováno v:
World Journal of Microbiology and Biotechnology. 27:2903-2911
The production of extracellular pullulanase by Bacillus licheniformis NRC22 was investigated using different fermentation modes. In batch culture maximal enzyme activity of 18 U/ml was obtained after 24 h of growth. In continuous fermentation by the
Publikováno v:
Head & Neck. 33:1177-1183
Background The purpose of this study was to evaluate the outcomes after supracricoid laryngectomy (SCL) as an alternative to total laryngectomy (TL) for treatment of laryngeal cancer. Methods This retrospective study involved 333 patients who underwe
Publikováno v:
World Journal of Microbiology and Biotechnology. 25:821-827
Bacillus circulans was able to produce extracellular levansucrase using sucrose as carbon source optimally at 35°C. The enzymic synthesis of levan and fructo-oligosaccharides was studied using a 50% ethanol fraction of crude extract. The molecular w
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
Publikováno v:
Rhinology. 52(4)
Background: Maxillary sinus inverted papilloma entails medial maxillectomy and is associated with high incidence of recurrence. Objective: To study the impact of prior surgery on recurrence rate after transnasal endoscopic medial maxillectomy. Method