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dc.creatorDaković, Aleksandra
dc.creatorMatijašević, Srđan
dc.creatorRottinghaus, George E.
dc.creatorLedoux, David R.
dc.creatorButkeraitis, Paula
dc.creatorSekulić, Živko
dc.date.accessioned2023-04-21T10:57:46Z
dc.date.available2023-04-21T10:57:46Z
dc.date.issued2008
dc.identifier.issn0927-7765
dc.identifier.urihttps://ritnms.itnms.ac.rs/handle/123456789/131
dc.description.abstractAdsorption of aflatoxin B-1 (AFB1) by natural montmorillonite (MONT) and montmorillonite modified with copper ions (Cu-MONT) was investigated. Both MONTs were characterized using the X-ray powder diffraction (XRPD) analysis, thermal analysis (DTA/TGA) and scanning electron miscroscopy/electron dispersive spectroscopy (SEM/EDS). The results of XRPD and SEM/EDS analyses of Cu-MONT suggested partial ion exchange of native inorganic cations in MONT with copper occurred. Investigation of AFB1 adsorption by MONT and Cu-MONT, at pH 3, 7 or 9, showed that adsorption of this toxin by both MONTs was high (over 93%). Since AFB1 is nonionizable, no differences in AFB1 adsorption by both MONTs, at different pHs, were observed, as expected. Futhermore, it was determined that adsorption of AFB1 by both MONTs followed a non-linear (Langmuir) type of isotherm, at pH 3. The calculated maximum adsorbed amounts of AFB1 by MONT (40.982 mg/g) and Cu-MONT (66.225 mg/g), derived from Langmuir plots of isotherms, indicate that Cu-MONT was much effective in adsorbing AFB1. Since, the main cation in an exchangeable position in MONT is calcium, and in Cu-MONT both calcium and copper, the fact that ion exchange of inorganic cations in MONT with copper increases adsorption of AFB1 suggests that additional interactions between AFB1 and copper ions in Cu-MONT caused greater adsorption.en
dc.publisherElsevier, Amsterdam
dc.relation401-00-218/2007-01/12-IP (Tip 1)/12
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142057/RS//
dc.rightsrestrictedAccess
dc.sourceColloids and Surfaces B-Biointerfaces
dc.subjectmontmorilloniteen
dc.subjection exchangeen
dc.subjectcopperen
dc.subjectaflatoxin B-1en
dc.subjectadsorptionen
dc.titleAflatoxin B-1 adsorption by natural and copper modified montmorilloniteen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage25
dc.citation.issue1
dc.citation.other66(1): 20-25
dc.citation.rankM22
dc.citation.spage20
dc.citation.volume66
dc.identifier.doi10.1016/j.colsurfb.2008.05.008
dc.identifier.pmid18585010
dc.identifier.rcubconv_550
dc.identifier.scopus2-s2.0-47349111358
dc.identifier.wos000258983900003
dc.type.versionpublishedVersion


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