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Fat extraction from fleshings - optimization of operating conditions

2020Conference object Open access
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dc.contributor.authorCunha, A.F.
dc.contributor.authorCaetano, Nídia
dc.contributor.authorRamalho, Elisa
dc.contributor.authorCrispim, Alfredo
dc.date.accessioned2021-09-24T13:52:48Z
dc.date.available2021-09-24T13:52:48Z
dc.date.issued2020
dc.description.abstractFat from fleshings is an excellent source of energy since it is composed of glycerides, fatty acids and glycerol. The present work aims to optimize the operating conditions of fat extraction from fleshings. Animal fat was obtained after thermal treatment of fleshings in a stainless steel batch reactor using different operating conditions (100T155 ºC; 1P5.5 bar, t= 2 h, r= 1000 rpm). The fat containing phases were extracted in a heated Soxhlet using n-hexane and ethanol to recover the fat from the solid residue. In addition, 6 M HCl acid was added to the remaining solid and heated to boiling conditions for 2 h to further extract fat that is encapsulated in the tissues of the fleshing. The best conditions of fat extraction were obtained at 155 ºC during 2 h and 1000 rpm that generated a pressure of 5.5 bar inside the batch reactor. It was also found that significantly higher amount of fat could be obtained at the operating conditions mentioned (50 wt. % on dry basis), sparring chemical treatments by using a 6 M HCl acid for additional fat extraction. Finally, this approach allowed to significantly reduce the environmental impact of solid waste, decreasing also the costs associated with disposal, while contributing to the circular economy of the tanning sector.pt_PT
dc.description.sponsorshipThe authors would like to acknowledge ANI (Innovation Agency) for the support of Biofat project (POCI-01-0247-FEDER-038457) by Portugal 2020 Programme. Fleshings were supplied by the Centre for the Portuguese Leather Industry (CTIC — Centro Tecnológico das Indústrias do Couro) collected at Demoscore, a Portuguese tannery. This work was financially supported by: Base Funding – UIDB/04730/2020 of Centre for Innovation in Engineering and Industrial Technology, CIETI – funded by national funds through the FCT/MCTES (PIDDAC)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.egyr.2020.11.176pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/18538
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2352484720316012pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectBiowastept_PT
dc.subjectFat extractionpt_PT
dc.subjectFleshingspt_PT
dc.subjectHydrolysispt_PT
dc.subjectTannery wastept_PT
dc.titleFat extraction from fleshings - optimization of operating conditionspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/157604/PT
oaire.citation.endPage390pt_PT
oaire.citation.startPage381pt_PT
oaire.citation.titleEnergy Reportspt_PT
oaire.citation.volume6pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCaetano
person.familyNameRamalho
person.familyNameCrispim
person.givenNameNídia
person.givenNameElisa
person.givenNameAlfredo
person.identifierR-000-DJC
person.identifierR-000-PNJ
person.identifier.ciencia-id1F1D-73E2-BFBF
person.identifier.ciencia-id1416-3FD8-5770
person.identifier.orcid0000-0002-2185-6401
person.identifier.orcid0000-0001-8586-3451
person.identifier.orcid0000-0001-5214-7811
person.identifier.ridI-3934-2012
person.identifier.scopus-author-id55901684900
person.identifier.scopus-author-id6602086392
person.identifier.scopus-author-id6507955490
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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