Physicochemical properties and stability of black cumin (Nigella sativa) seed oil as affected by different extraction methods

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dc.authorid0000-0002-5431-8503en_US
dc.authorid0000-0002-3333-7537en_US
dc.authorid0000-0001-7401-8025en_US
dc.contributor.authorKiralan, Mustafa
dc.contributor.authorÖzkan, Gülcan
dc.contributor.authorBayrak, Ali
dc.contributor.authorRamadan, Mohamed Fawzy
dc.date.accessioned2021-06-23T19:35:55Z
dc.date.available2021-06-23T19:35:55Z
dc.date.issued2014
dc.departmentBAİBÜ, Mühendislik Fakültesi, Gıda Mühendisliği Bölümüen_US
dc.description.abstractBlack cumin (Nigella sativa) oil (BCO) was recovered using different extraction techniques including solvent free system (cold-pressing) and solvent extracted systems (Soxhlet and microwave assisted). Oils were analyzed for the composition of fatty acids and bioactive compounds (sterols, tocopherols, chlorophyll, carotenoid and phenolics profile) and for some physicochemical properties [free fatty acid, peroxide value (PV), refractive index, and ultraviolet (UV) absorption at K-232 and K-270]. Antiradical power (AP) of oils was also evaluated, wherein cold-pressed oil had stronger AP than solvent extracted oils. Phenolic profiles analyzed by HPLC revealed that thymoquinone was the main phenolic compound wherein high levels of benzoic and p-hydroxy benzoic acids were found in cold pressed-BCO. Oxidative stability (OS) of oils was evaluated during accelerated oxidation conditions (oven test at 60 degrees C and Rancimat test at 110 degrees C). The greatest induction period was 19.6h for Soxhlet-extracted BCO, and the lowest induction period was 3.48 h for cold-pressed BCO. PV of cold-pressed BCO reached 85.3 meq O-2/kg oil, while PV of the other extracted oils were under 27.0 meq O-2/kg oil at the end of storage period. (C) 2014 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.indcrop.2014.03.026
dc.identifier.endpage58en_US
dc.identifier.issn0926-6690
dc.identifier.issn1872-633X
dc.identifier.scopus2-s2.0-84897969847en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage52en_US
dc.identifier.urihttps://doi.org/10.1016/j.indcrop.2014.03.026
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7895
dc.identifier.volume57en_US
dc.identifier.wosWOS:000336826300007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorKiralan, Mustafa
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.subjectNigella Sativaen_US
dc.subjectOilen_US
dc.subjectExtractionen_US
dc.subjectCold-pressingen_US
dc.subjectMicrowaveen_US
dc.subjectOxidative Stabilityen_US
dc.titlePhysicochemical properties and stability of black cumin (Nigella sativa) seed oil as affected by different extraction methodsen_US
dc.typeArticleen_US

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