A comparative study of flavonoid contents and antioxidant activities of supercritical CO2 extracted pine barks grown in different regions of Turkey and Germany

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dc.contributor.authorYesil-Celiktas, O.
dc.contributor.authorOtto, F.
dc.contributor.authorParlar, H.
dc.date.accessioned2019-10-27T20:50:17Z
dc.date.available2019-10-27T20:50:17Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractUtilization of renewable resources is gaining more emphasis and large quantities of solid wastes are produced by the forestry industry. However, there is a significant lack of transformation of such wastes into potentially novel products. The barks of various Pinus species from different regions of Turkey (P. pinea, P. sylvestris, P. nigra) and Germany (P. parviflora, P. ponderosa, P. sylvestris, P. nigra) were extracted by supercritical CO2 extraction. Different sources of variability including location and species were evaluated for their active constituents, (-)-catechin, (-)-epiatechin, (-)-catechin gallate, and taxifolin, applying HPLC, radical scavenging activities (RSA), and total phenol analysis. The total amounts of flavan-3-ols (9.916 mg/g) were the highest in P. pinea extract harvested from Aydin, having the hottest climate and longest duration of sun (P < 0.01). In addition, P. pinea had the highest RSA (81.0 %) and total phenol value (83.0 mg GAE/g).en_US
dc.description.sponsorshipTUBITAK-BIDEBTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK)en_US
dc.description.sponsorshipThe postdoctoral research grant provided by TUBITAK-BIDEB for performing this research is gratefully acknowledged.en_US
dc.identifier.doi10.1007/s00217-009-1101-5
dc.identifier.endpage677en_US
dc.identifier.issn1438-2377
dc.identifier.issn1438-2385
dc.identifier.issn1438-2377en_US
dc.identifier.issn1438-2385en_US
dc.identifier.issue4en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage671en_US
dc.identifier.urihttps://doi.org/10.1007/s00217-009-1101-5
dc.identifier.urihttps://hdl.handle.net/11454/42977
dc.identifier.volume229en_US
dc.identifier.wosWOS:000268275900015en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEuropean Food Research and Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPine barken_US
dc.subjectSupercritical fluid extractionen_US
dc.subjectCatechinsen_US
dc.subjectTaxifolinen_US
dc.subjectAntioxidant activityen_US
dc.titleA comparative study of flavonoid contents and antioxidant activities of supercritical CO2 extracted pine barks grown in different regions of Turkey and Germanyen_US
dc.typeArticleen_US

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