Show simple item record

dc.contributor.authorYürekli, Yılmaz
dc.contributor.authorAlsoy Altınkaya, Sacide
dc.date.accessioned2017-03-07T07:17:37Z
dc.date.available2017-03-07T07:17:37Z
dc.date.issued2011-08
dc.identifier.citationYürekli, Y., and Alsoy Altınkaya, S. (2011). Catalytic performances of chemically immobilized urease under static and dynamic conditions: A comparative study. Journal of Molecular Catalysis B: Enzymatic, 71(1-2), 36-44. doi:10.1016/j.molcatb.2011.03.006en_US
dc.identifier.issn1381-1177
dc.identifier.urihttp://doi.org/10.1016/j.molcatb.2011.03.006
dc.identifier.urihttp://hdl.handle.net/11147/4990
dc.description.abstractImmobilized urease has been used for direct removal of urea from aqueous solution and as biological sensing material in the preparation of urea biosensors. The former application is carried out under dynamic condition using ultrafiltration membrane either in tubular form or in flat sheet, while the latter is used in static condition. In this study, the performance of chemically immobilized urease on poly(acrylonitrile-co-sodium methallyl sulfonate) ultrafiltration membrane was determined under both static and dynamic conditions. Results reveal that the immobilization enhanced the thermal and storage stabilities of urease. The hydraulic permeability of urea solution was not influenced by the addition of enzyme layer. The maximum reaction rate measured under pressure in the ultrafiltration unit was found higher compared to the rate observed just under mixing without any pressure applied. The highest urea conversion was found at the lowest transmembrane pressure and the urea concentration in the feed solution. The catalytic activity of the membrane was completely preserved at the end of 450 min of filtration.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.molcatb.2011.03.006en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCovalent immobilizationen_US
dc.subjectEDC/NHS crosslinkeren_US
dc.subjectMembrane enzymatic reactoren_US
dc.subjectUltrafiltrationen_US
dc.subjectUreaseen_US
dc.titleCatalytic performances of chemically immobilized urease under static and dynamic conditions: A comparative studyen_US
dc.typearticleen_US
dc.contributor.authorIDTR28311en_US
dc.contributor.authorIDTR2091en_US
dc.contributor.iztechauthorYürekli, Yılmaz
dc.contributor.iztechauthorAlsoy Altınkaya, Sacide
dc.relation.journalJournal of Molecular Catalysis B: Enzymaticen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume71en_US
dc.identifier.issue1-2en_US
dc.identifier.startpage36en_US
dc.identifier.endpage44en_US
dc.identifier.wosWOS:000291451000006
dc.identifier.scopusSCOUPUS:2-s2.0-79956125301
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record