Dergi makalesi Açık Erişim
Sahin, Ozlem; Erdemir, Serkan; Uyanik, Arzu; Yilmaz, Mustafa
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <controlfield tag="001">39899</controlfield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="a">Creative Commons Attribution</subfield> <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield> </datafield> <datafield tag="909" ind1="C" ind2="4"> <subfield code="v">369</subfield> <subfield code="p">APPLIED CATALYSIS A-GENERAL</subfield> <subfield code="n">1-2</subfield> <subfield code="c">36-41</subfield> </datafield> <controlfield tag="005">20210315202130.0</controlfield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">Lipases are enzymes that catalyses a variety of reactions, such esterifications, interesterification and hydrolysis. Several methods have been reported for the immobilization of lipases, such as deposition onto solid supports, covalent binding and encapsulation within a polymer matrix or silica glasses obtained by sol-gel techniques. In this study, the Candido rugosa lipase was encapsulated within a chemically inert sol-gel support prepared by polycondensation by tetraetoxysilane (TEOS)and octyltrietoxysilane(OTES) in the presence and absence of calix[n]arene, calix[n]-NH2 and calix[n]-COOH (n = 4,6,8) compounds as additives. The catalytic activity of the encapsulated lipases was evaluated into model reactions, i.e. the hydrolysis of p-nitrophenylpalmitate (p-NPP), and the enantioselective hydrolysis of rasemic Naproxen methyl ester that was studied in aqueous buffer solution/isooctane reaction system. The results indicated that the particularly calix[4,6]-NH2 and calix[6]-COOH based encapsulated lipases had higher conversion and enantioselectivity compared to the sol-gel free lipase. (C) 2009 Elsevier B.V. All rights reserved.</subfield> </datafield> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Enantioselective hydrolysis of (R/S)-Naproxen methyl ester with sol-gel encapculated lipase in presence of calix[n]arene derivatives</subfield> </datafield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="p">user-tubitak-destekli-proje-yayinlari</subfield> <subfield code="o">oai:zenodo.org:39899</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="u">Selcuk Univ, Dept Chem, TR-42031 Konya, Turkey</subfield> <subfield code="a">Sahin, Ozlem</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="z">md5:9fc8ec925783f33da9b3b1b18c3538bb</subfield> <subfield code="s">235</subfield> <subfield code="u">https://aperta.ulakbim.gov.trrecord/39899/files/bib-490f7c41-edcd-4c03-89d0-7d41d089d6df.txt</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="2">doi</subfield> <subfield code="a">10.1016/j.apcata.2009.08.030</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Selcuk Univ, Dept Chem, TR-42031 Konya, Turkey</subfield> <subfield code="a">Erdemir, Serkan</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Selcuk Univ, Dept Chem, TR-42031 Konya, Turkey</subfield> <subfield code="a">Uyanik, Arzu</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Selcuk Univ, Dept Chem, TR-42031 Konya, Turkey</subfield> <subfield code="a">Yilmaz, Mustafa</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="a">cc-by</subfield> <subfield code="2">opendefinition.org</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">publication</subfield> <subfield code="b">article</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2009-01-01</subfield> </datafield> </record>
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