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Characterisation of soluble nitrogen and muscle proteins in wastewater throughout the salting process of Codfish (Gadus morhua)

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dc.contributor.authorFerraro, Vincenza
dc.contributor.authorCruz, Isabel B.
dc.contributor.authorJorge, Ruben Ferreira
dc.contributor.authorMalcata, F. Xavier
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorPintado, Manuela E.
dc.date.accessioned2011-07-29T09:22:25Z
dc.date.available2011-07-29T09:22:25Z
dc.date.issued2010
dc.description.abstractIn Portugal, Atlantic codfish (Gadus morhua) is usually consumed after dry salting; this process is carried out by mixing deboned codfish with food–grade marine salt followed by stacking in a tank for 6 days. Along the salting process, codfish incorporates salt as well as it is partially dried by the release of water - up to 22 % (w/w). Currently, this wastewater is treated as a residue not being further valorized. However, the presence of a significant amount of valuable compounds in this rest, such as amino acids and proteins, may allow for valorization opportunities not yet explored. The present work focuses on the identification of the nitrogen-containing compounds present in such wastewater. Total nitrogen (WSN), trichloroacetic acid-soluble nitrogen (TCASN) and phosphotungstic acid-soluble nitrogen (PTASN) were evaluated by the micro-Kjeldahl method; Biuret method was used for total protein determinations and SDS-Page was performed for protein molecular weight screening. The results revealed an increase of WSN, TCASN and PTASN with time, with corresponding values of 3.17 g/L (WSN), 1.62 g/L (TCASN) and 1.16 g/L (PTASN) by the end of the process; the evolution of WSN versus the released water was approximately constant during the salting process, as well as the ratios of TCASN/WSN and PTASN/WSN with values of 51.25 and 36.55 % (w/w) at equilibrium, respectively.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationFERRARO, Vincenza …[et al.] - Characterisation of soluble nitrogen and muscle proteins in wastewater throughout the salting process of Codfish (Gadus morhua). Chemical Engineering Transactions. ISSN 1974-9791. Vol. 21 (2010), p. 829-834por
dc.identifier.doi10.3303/CET1021139
dc.identifier.isbn9788895608051
dc.identifier.issn2283-9216
dc.identifier.urihttp://hdl.handle.net/10400.14/4845
dc.identifier.wosWOS:000286978600139
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherThe Italian Association of Chemical Engineeringpor
dc.relationFUNDAMENTAL INSIGHTS INTO THE DEVELOPMENT OF FLAVOUR AND MICRO-STRUCTURE DURING FLOUR EXTRUSION
dc.titleCharacterisation of soluble nitrogen and muscle proteins in wastewater throughout the salting process of Codfish (Gadus morhua)por
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleFUNDAMENTAL INSIGHTS INTO THE DEVELOPMENT OF FLAVOUR AND MICRO-STRUCTURE DURING FLOUR EXTRUSION
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F20653%2F2004/PT
oaire.citation.endPage834
oaire.citation.startPage829
oaire.citation.titleChemical Engineering Transactions
oaire.citation.volume21
person.familyNameFerraro
person.familyNameMalcata
person.familyNameCastro
person.familyNamePintado
person.givenNameVincenza
person.givenNameFrancisco
person.givenNamePaula
person.givenNameMaria Manuela
person.identifier263033
person.identifier2013444
person.identifier456608
person.identifier.ciencia-id1B13-38A5-35F5
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.orcid0000-0003-4815-0297
person.identifier.orcid0000-0003-3073-1659
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0002-0760-3184
person.identifier.ridK-8153-2014
person.identifier.ridM-8241-2013
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id36450563900
person.identifier.scopus-author-id7102542478
person.identifier.scopus-author-id7102781782
person.identifier.scopus-author-id7004483898
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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