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Adding Value to Tannery Fleshings Part I – Oils and Protein Hydrolysates – Production and Application

2013Journal article Open access
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dc.contributor.authorBragança, I.
dc.contributor.authorCrispim, Alfredo
dc.contributor.authorSampaio, A.
dc.contributor.authorRamalho, Elisa
dc.contributor.authorCrispim, F.
dc.contributor.authorCaetano, Nídia
dc.contributor.authorSilva, P. C.
dc.date.accessioned2019-03-20T10:49:04Z
dc.date.available2019-03-20T10:49:04Z
dc.date.issued2013
dc.description.abstractThe tanning industry generates a high quantity of solid wastes. Therefore, there is a need to create valorization [added value] options for these wastes. The present work had as its main objective creating added value by production of fat and hydrolyzed protein. To this end, fleshings were treated by hydrolysis with regard to the influence of various factors. The best result was found for a temperature of 60°C, 4 hours of hydrolysis, 2% of enzyme and 100% of water, with a fat extraction yield of 93%. The fat obtained through the hydrolysis process was used to produce sulphated oils. The protein hydrolysate was concentrated to about 40% of solids content and used to prepare co-products of protein hydrolysate and glutaraldehyde. Sulphated oils were applied in leather fatliquoring and the different protein hydrolysates were tested in leather retannage. The leather samples obtained were evaluated by physical-mechanical tests and the results were compared to those obtained through a standard process. The results were very satisfactory and, in some cases better than the specified standard. The process of adding value to this waste results in a double advantage for the leather industry, reducing the environmental impact and allowing production of alternative products for leather fatliquoring and retannage.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10400.22/13064
dc.identifier.urihttp://hdl.handle.net/10400.22/13064
dc.language.isoengpt_PT
dc.publisherSociety of Leather Technologists and Chemistspt_PT
dc.titleAdding Value to Tannery Fleshings Part I – Oils and Protein Hydrolysates – Production and Applicationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of the Society of Leather Technologists and Chemistspt_PT
person.familyNameCrispim
person.familyNameRamalho
person.familyNameCaetano
person.givenNameAlfredo
person.givenNameElisa
person.givenNameNídia
person.identifierR-000-PNJ
person.identifierR-000-DJC
person.identifier.ciencia-id1416-3FD8-5770
person.identifier.ciencia-id1F1D-73E2-BFBF
person.identifier.orcid0000-0001-5214-7811
person.identifier.orcid0000-0001-8586-3451
person.identifier.orcid0000-0002-2185-6401
person.identifier.ridI-3934-2012
person.identifier.scopus-author-id6507955490
person.identifier.scopus-author-id6602086392
person.identifier.scopus-author-id55901684900
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4c7126e3-79cc-4610-a061-918dffac6090
relation.isAuthorOfPublicationced62136-f0a0-4c70-9c72-a87c8c8e9241
relation.isAuthorOfPublication4bbb44e7-228a-48fb-abc2-8df5e27d0b48
relation.isAuthorOfPublication.latestForDiscovery4c7126e3-79cc-4610-a061-918dffac6090

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