Publication
Flow-based system for the determination of titratable acidity in wines
| dc.contributor.author | Vidigal, Susana S. M. P. | |
| dc.contributor.author | Ramos, Ana T. C. | |
| dc.contributor.author | Rangel, António O. S. S. | |
| dc.date.accessioned | 2016-06-28T15:36:56Z | |
| dc.date.available | 2016-06-28T15:36:56Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | A flow injection analysis system with a spectrophotometric detection was arranged in order to develop a simple and fast methodology for the quantification of titratable acidity in different types of wines. In the proposed system, a precise volume of sample is injected in the carrier stream, composed by a mixture of OH− solution with the pH indicator, bromothymol blue (BTB). Consequently, a change on the colour of the carrier solution is achieved and quantified by spectrophotometry. Therefore, it was possible to establish a linear range up to 0.16 g/L expressed as tartaric acid, with a limit of detection and quantification of 0.01 and 0.05 g/L, respectively. The proposed work has a low sample and reagents consumption, only 96 μg of BTB, 336 mmol de OH− and 50 μL of sample were needed per assay. At the same time, a high determination rate was achieved, 75 determinations per hour. The developed methodology was applied on the quantification of total acidity in red and white table wine and port wine samples. | pt_PT |
| dc.identifier.citation | VIDIGAL, SUSANA S. M. P.; RAMOS, Ana T. C.; RANGEL, António O. S. S. - Flow-Based System for the Determination of Titratable Acidity in Wines. Food Analytical Methods. (2016) ISSN: 1936-9751. Vol. 9, nº 8, p.2241–2245 | pt_PT |
| dc.identifier.doi | 10.1007/s12161-016-0408-7 | pt_PT |
| dc.identifier.eid | 84955275540 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/20321 | |
| dc.identifier.wos | 000378902200012 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Springer | pt_PT |
| dc.subject | Bromothymol blue | pt_PT |
| dc.subject | Flow-injection system | pt_PT |
| dc.subject | Spectrophotometry | pt_PT |
| dc.subject | Titratable acidity | pt_PT |
| dc.subject | Table and port wine | pt_PT |
| dc.title | Flow-based system for the determination of titratable acidity in wines | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F78705%2F2011/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/3599-PPCDT/PEst-OE%2FEQB%2FLA0016%2F2013/PT | |
| oaire.citation.conferencePlace | United States | pt_PT |
| oaire.citation.endPage | 2245 | |
| oaire.citation.issue | 8 | |
| oaire.citation.startPage | 2241 | |
| oaire.citation.volume | 9 | |
| oaire.fundingStream | SFRH | |
| oaire.fundingStream | 3599-PPCDT | |
| person.familyName | Vidigal | |
| person.familyName | Santos Silva Rangel | |
| person.givenName | Susana | |
| person.givenName | António Osmaro | |
| person.identifier.ciencia-id | 2919-B77C-11C0 | |
| person.identifier.ciencia-id | D61D-7CFB-178A | |
| person.identifier.orcid | 0000-0002-0213-063X | |
| person.identifier.orcid | 0000-0002-6486-8947 | |
| person.identifier.rid | M-4661-2013 | |
| person.identifier.scopus-author-id | 11739488200 | |
| person.identifier.scopus-author-id | 7004827387 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | restrictedAccess | pt_PT |
| rcaap.type | article | pt_PT |
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