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Effects of physical parameters onto adsorption of the Borderline Amino Acids Glycine, Lysine, Taurine, and Tryptophan upon Amberlite XAD16 Resin

2013Journal article Restricted access
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dc.contributor.authorFerraro, Vicenza
dc.contributor.authorCruz, Isabel B.
dc.contributor.authorJorge, Ruben Ferreira
dc.contributor.authorPintado, Manuela E.
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2014-05-07T16:06:04Z
dc.date.available2014-05-07T16:06:04Z
dc.date.issued2013
dc.description.abstractThe adsorption of the borderline amino acids glycine, lysine, taurine, and tryptophan on the commercial resin Amberlite XAD16 was investigated. The effect of amino acid hydrophobicity/hydrophilicity and effects of environmental conditions upon adsorption equilibrium were evaluated. Optimal settings for a maximum recovery of a selected amino acid, namely, taurine, were obtained by the response surface methodology. Changes in temperature, pH, ionic strength, percentage of ethanol added to the amino acid solution, amino acid concentration, and adsorbent dose showed effects on the recovery of each amino acid upon the uncharged, nonfunctionalized, and hydrophobic matrix of the Amberlite XAD16 resin. Adsorption was favored at the lower temperature investigated, 10 degrees C; a pH decrease down to 2 favored adsorption of glycine, lysine, and tryptophan; the addition of ethanol allowed an increase in amino acid recovery except for lysine. The addition of sodium chloride up to the value of 1.5 M showed a positive effect on adsorption of all amino acids. A dose of 10 g Amberlite XAD16 for 100 mL of solution was the most adequate at the amino acid concentrations tested. Optimal conditions for the maximum recovery of taurine were achieved at a temperature of 13.5 degrees C and at a ionic strength of 1.32 M NaCl.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationFERRARO, Vicenza...[et al.] - Effects of Physical Parameters onto Adsorption of the Borderline Amino Acids Glycine, Lysine, Taurine, and Tryptophan upon Amberlite XAD16 Resin. Journal of Chemical Engineering Data. ISSN 0021-9568. Vol. 58 (2013), p. 707−717por
dc.identifier.doi10.1021/je301206r
dc.identifier.eissn1520-5134
dc.identifier.issn0021-9568
dc.identifier.urihttp://hdl.handle.net/10400.14/14260
dc.identifier.wosWOS:000316307800026
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relationStrategic Project - LA 16 - 2011-2012
dc.titleEffects of physical parameters onto adsorption of the Borderline Amino Acids Glycine, Lysine, Taurine, and Tryptophan upon Amberlite XAD16 Resinpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.citation.endPage717
oaire.citation.issue3
oaire.citation.startPage707
oaire.citation.titleJournal of Chemical and Engineering Data
oaire.citation.volume58
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFerraro
person.familyNamePintado
person.familyNameCastro
person.givenNameVincenza
person.givenNameMaria Manuela
person.givenNamePaula
person.identifier263033
person.identifier456608
person.identifier2013444
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0003-4815-0297
person.identifier.orcid0000-0002-0760-3184
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridK-8153-2014
person.identifier.ridF-5696-2013
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id36450563900
person.identifier.scopus-author-id7004483898
person.identifier.scopus-author-id7102781782
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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