Repository logo
 
Publication

Performance study of a potentiometric sensor array for lactic proteins analysis

2012Conference object Open access
Simple item page
dc.contributor.authorDias, L.G.
dc.contributor.authorVeloso, Ana C.A.
dc.contributor.authorMachado, Adélio A.S.C.
dc.contributor.authorPeres, António M.
dc.date.accessioned2014-09-25T15:41:20Z
dc.date.available2014-09-25T15:41:20Z
dc.date.issued2012
dc.description.abstractLactic proteins are complex biomolecules, possessing different molecular weights (from 19 kDa up to 66 kDa), which can be used as biomarkers for detecting food adulterations. This study reports for the first time the evaluation of two potentiometric sensor arrays, one electronic tongue (ET) using only cross-sensitivity chemical sensors and a hybrid-ET containing ionic-selective and cross-sensitivity chemical sensors. Although both devices could detect and distinguish soluble and insoluble lactic proteins, namely bovine serum albumin and three main casein fractions (alpha-, beta- and kappa-), the inclusion of ionic-selective sensors increased the device performance (100% of correct leave-oneout cross-validation classification for hybrid-ET against 94% for the ET) and reduced the number of sensors needed (5 for the hybrid-ET instead of 9 sensors used by the ET device). Finally, the results showed that with the hybrid-ET a second-order polynomial equation could be derived relating the measured potential of the aqueous solution and the logarithmic of the total casein concentration, with satisfactory determination coefficients (R2>0.99).por
dc.identifier.citationDias, L.G.; Veloso, Ana C.A.; Machado, A.A.S.C.; Peres, António M. (2012). Performance study of a potentiometric sensor array for lactic proteins analysis. In 14th International Meeting on Chemical Sensors (IMCS2012). Nuremberg. ISBN 978-3-9813484-2-2por
dc.identifier.doi10.5162/IMCS2012/P2.1.2
dc.identifier.isbnISBN 978-3-9813484-1-5
dc.identifier.urihttp://hdl.handle.net/10198/10605
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAMA Service GmbHpor
dc.titlePerformance study of a potentiometric sensor array for lactic proteins analysispor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceNurembergpor
oaire.citation.titleIMCS 2012 – The 14th International Meeting on Chemical Sensorspor
person.familyNameDias
person.familyNamePeres
person.givenNameLuís G.
person.givenNameAntónio M.
person.identifier107333
person.identifier.ciencia-id2F11-9092-FAAF
person.identifier.ciencia-idCF16-5443-F420
person.identifier.orcid0000-0002-1210-4259
person.identifier.orcid0000-0001-6595-9165
person.identifier.ridI-8470-2012
person.identifier.scopus-author-id23569169900
person.identifier.scopus-author-id7102331969
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublicationeac8c166-4056-4ed0-8d8d-7ecb2c4481a5
relation.isAuthorOfPublication7d93be47-8dc4-4413-9304-5b978773d3bb
relation.isAuthorOfPublication.latestForDiscovery7d93be47-8dc4-4413-9304-5b978773d3bb

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
27_2012_POSTER.pdf
Size:
1.9 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIMO - Resumos em Proceedings Não Indexados à WoS/Scopus