Optimization of tannin isolation from acorn and application in leather processing

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dc.contributor.authorOnem, Ersin
dc.contributor.authorGulumser, Gurbuz
dc.contributor.authorAkay, Seref
dc.contributor.authorYesil-Celiktas, Ozlem
dc.date.accessioned2019-10-27T22:05:20Z
dc.date.available2019-10-27T22:05:20Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description.abstractThe aim of this work was to optimize the extraction parameters of tannins from the acorns and the tanning properties. Experiments were planned to evaluate the effect of solvent/feed ratio (20-100 ml/g), time (2-10 h) and solvent mixture ratio (methanol-water) (0-100%) on extraction yields, tannin contents and total tannin amounts. Valonea tannin obtained under optimum conditions was applied to leather tanning process where filling coefficient (%) and shrinkage temperature (T-s) of the leathers were examined. Optimum extraction parameters were elicited as 100 ml/g for solvent/feed ratio, 6 h of process duration and solvent mixture ratio of 62% methanol-38% water. The filling coefficient of the leathers tanned with extracted valonea (57.81%) and the shrinkage temperature (75.5 degrees C) was superior to the commercial valonea (52.83%, 73 degrees C) implying the significant impact of process optimization. The tanning properties of the extracted valonea were satisfactory for the vegetable tanning in leather industry. (C) 2013 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipEge University Scientific Research Project Department DirectorateEge University [12-MUH-009]en_US
dc.description.sponsorshipThe authors would like to thank Ege University Scientific Research Project Department Directorate for the financial support provided (Project No: 12-MUH-009).en_US
dc.identifier.doi10.1016/j.indcrop.2013.12.014
dc.identifier.endpage22en_US
dc.identifier.issn0926-6690
dc.identifier.issn1872-633X
dc.identifier.issn0926-6690en_US
dc.identifier.issn1872-633Xen_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage16en_US
dc.identifier.urihttps://doi.org/10.1016/j.indcrop.2013.12.014
dc.identifier.urihttps://hdl.handle.net/11454/48357
dc.identifier.volume53en_US
dc.identifier.wosWOS:000338612500003en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofIndustrial Crops and Productsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLeatheren_US
dc.subjectAcornen_US
dc.subjectValonea tanninen_US
dc.subjectOptimizationen_US
dc.subjectBox-Behnken designen_US
dc.subjectTanningen_US
dc.titleOptimization of tannin isolation from acorn and application in leather processingen_US
dc.typeArticleen_US

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