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In Association with
Immobilization and characterization of inulinase from Ulocladium atrum on nonwoven fabrics
8th Euro Biotechnology Congress
Tarek M Mohamed1, Soad M Abu El-Souod1, Ehab M M Ali1, Mohammed O El-Badry2, Mai M El-Keiy1 and Aly Sayed Aly2,3
1Tanta University, Egypt 2National Research Centre, Egypt 3Shaqra University, KSA
ScientificTracks Abstracts: Biotechnol Biomater
Abstract
Ulocladium atrum inulinase was immobilized on different composite membranes composed of chitosan/nonwoven fabrics. Km values of free and immobilized U. atrum inulinase on different composite membranes were calculated. Free and immobilized U. atrum inulinase had pH optima at 5.6 on polyester nonwoven fabric coated with 3% chitosan solution (PPNWF3) but immobilized U. atrum inulinase on polyester and polypropylene nonwoven fabrics coated with 1% chitosan solution had pH optimum 5. The enzyme had optimum temperature at 40 °C for immobilized enzyme on each of polyester and polypropylene composite membranes coated with 1% chitosan meanwhile it was 50 °C for free and immobilized enzyme on polypropylene nonwoven fabric coated with 3% chitosan solution. Inulinase was stable at 40 °C for free U. atrum inulinase but thermal stability of immobilized enzyme was detected up to 60 °C. Reusability of immobilized enzyme was from 38 to 42 cycles of reuse; the immobilized enzyme lost its activity completely. In conclusion, immobilized U. atrum inulinase was considerably more stable than the free enzyme and could be stored for extended periods.Biography
Tarek M Mohamed has been a Professor of Biochemistry in Biochemistry Division, Chemistry Department, Tanta University, Tanta, Egypt since June 2008. He is a Reviewer for many journals. He shared in 12 national projects and supervised more than 20 MSc and PhD theses. He has 42 publications. He is interested in purification and characterization of enzymes, enzyme inhibitors, study related to enzyme engineering and biochemistry.
Email: tarek967@hotmail.com
