Recovery of volatile fatty acids from anaerobic fermentation broth of baker's yeast industry effluent by liquid-liquid extraction

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dc.authoridPolat, Ece/0000-0001-7173-9126
dc.authoridGungor, Fusun Seyma/0000-0003-0870-4048
dc.contributor.authorPolat, Ece
dc.contributor.authorGenc, Aysegul Nalan
dc.contributor.authorGungord, Fusun Seyma
dc.contributor.authorAltinbas, Mahmut
dc.date.accessioned2025-03-23T19:41:11Z
dc.date.available2025-03-23T19:41:11Z
dc.date.issued2025
dc.departmentSinop Üniversitesi
dc.description.abstractAs metabolic intermediates, volatile fatty acids (VFAs) can be recovered by separation and purification and contribute to the economy. It was necessary, however, to investigate the optimization of liquid-liquid extraction (LLE) in this study because of the technical difficulties encountered during the recovery of VFAs. For this reason, the organic solvents diethyl ether, trioctylamine, and toluene were investigated as LLE solvents to extract VFAs from Baker's yeast industry effluent, which contains high levels of organic matter. An optimal pH value of 3 was determined by a pH scan performed between pH 2.5 and pH 7.5. Principal component analysis (PCA) was used to determine the effects of organic solvents and pH on extraction efficiency. The extraction efficiency was evaluated using the optimal pH and multi-stage extraction experiments. In a three-stage extraction, diethyl ether recovered 82% of the VFAs, making it a promising organic solvent for extracting VFAs from anaerobic fermentation broth. PCA revealed that an opposite correlation between VFA recovery and pH for each organic solvent. Based on the results of the cost analysis, it was determined that the costs of recovering VFAs were reduced by 90% per kilogram.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [110Y026]
dc.description.sponsorshipThe authors are very grateful to the Scientific and Technological Research Council of Turkey (TUBITAK) for financial support. Project no: 110Y026.
dc.identifier.doi10.1016/j.jiec.2024.07.005
dc.identifier.endpage440
dc.identifier.issn1226-086X
dc.identifier.issn1876-794X
dc.identifier.scopus2-s2.0-85198180932
dc.identifier.scopusqualityQ1
dc.identifier.startpage431
dc.identifier.urihttps://doi.org/10.1016/j.jiec.2024.07.005
dc.identifier.urihttps://hdl.handle.net/11486/6513
dc.identifier.volume141
dc.identifier.wosWOS:001373752100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Inc
dc.relation.ispartofJournal of Industrial and Engineering Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectVolatile fatty acids
dc.subjectLiquid-liquid extraction
dc.subjectDiethyl ether
dc.subjectTrioctylamine
dc.subjectToluene
dc.subjectBaker's yeast industry effluent
dc.titleRecovery of volatile fatty acids from anaerobic fermentation broth of baker's yeast industry effluent by liquid-liquid extraction
dc.typeArticle

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