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Development of a potentiometric method To measure the resistance to oxidation of white wines and the antioxidant power of their constituents

2002-02-27Journal article Restricted access
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dc.contributor.authorOliveira, Carla M.
dc.contributor.authorFerreira, António C. Silva
dc.contributor.authorPinho, Paula Guedes de
dc.contributor.authorHogg, Tim
dc.date.accessioned2011-10-22T11:54:26Z
dc.date.available2011-10-22T11:54:26Z
dc.date.issued2002-02-27
dc.description.abstractThis work describes a new potentiometric method to evaluate the resistance to oxidation of white wines. Reduction and oxidation titrations were made, and coefficient of variation obtained were 10.87 and 2.65%, respectively. The antioxidant powers of ascorbic acid (Aas) and sulfur dioxide (SO2) were evaluated by this method, SO2 proving to be much less active in this respect than ascorbic acid. The two agents did not demonstrate any antioxidant synergy. A relationship between oxygen present and ascorbic acid was found by the proposed method (1 mmol of O2 S 0.84 mmol of Aas). This method enables the distinction of different wines on the basis of their resistance to oxidationpor
dc.identifier.citationOLIVEIRA, Carla M....[et al] - White Wines and the Antioxidant Power of Their Constituents. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. Vol. 50 (2002), p. 2121-2124por
dc.identifier.urihttp://hdl.handle.net/10400.14/6804
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.subjectResistance to oxidationpor
dc.subjectWhite winespor
dc.subjectPotentiometric titrationspor
dc.titleDevelopment of a potentiometric method To measure the resistance to oxidation of white wines and the antioxidant power of their constituentspor
dc.typejournal article
dspace.entity.typePublication
person.familyNameOliveira
person.familyNameSilva Ferreira
person.familyNameGuedes de Pinho
person.familyNameHogg
person.givenNameCarla
person.givenNameAntonio Cesar
person.givenNamePaula
person.givenNameTim
person.identifier392870
person.identifier.ciencia-id521E-EE5E-AF0B
person.identifier.ciencia-id931A-48DA-23A8
person.identifier.ciencia-id2510-1418-EF48
person.identifier.ciencia-idFF11-88CC-8BD4
person.identifier.orcid0000-0002-3346-2629
person.identifier.orcid0000-0002-1188-1021
person.identifier.orcid0000-0002-7395-5700
person.identifier.orcid0000-0003-2017-4131
person.identifier.ridJXY-0365-2024
person.identifier.scopus-author-id6504448214
person.identifier.scopus-author-id7005603860
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication826c11dd-d070-4b67-ac58-c96675e3f3b8
relation.isAuthorOfPublication0bde318f-79f7-4130-8600-e553f3384cc6
relation.isAuthorOfPublication12b8092d-fe59-408b-8058-47369a97d229
relation.isAuthorOfPublication.latestForDiscovery0bde318f-79f7-4130-8600-e553f3384cc6

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