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"Antioxidant Capacity and Essential Oil Composition of Hypericum thymopsis Boiss. (Hypericaceae) from Turkey"

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dc.contributor.author Koç, Emine
dc.contributor.author Arabacı, Turan
dc.date.accessioned 2022-02-08T12:53:53Z
dc.date.available 2022-02-08T12:53:53Z
dc.date.issued 2021
dc.identifier.citation KOÇ E,ARABACI T (2021). Antioxidant Capacity and Essential Oil Composition of Hypericum thymopsis Boiss. (Hypericaceae) from Turkey. Hacettepe Journal of Biology and Chemistry, 49(4), 385 - 390. Doi: 10.15671/hjbc.774575 en_US
dc.identifier.uri https://app.trdizin.gov.tr/makale/TkRnek9EUTVPUT09/antioxidant-capacity-and-essential-oil-composition-of-hypericum-thymopsis-boiss-hypericaceae-from-turkey
dc.identifier.uri http://hdl.handle.net/11616/46878
dc.description.abstract Abstract:Antioxidant capacity and essential oil composition of Hypericum thymopsis Boiss. (Hypericaceae), an endemic species, distributed in Turkey was determined. The samples of three different populations were used for the analysis. Antioxi - dant capacity was determined by DPPH method from the leaves and flowers. Essential oil analysis was performed from areal parts of plant by gas chromatography (GC) and GC/mass spectrometry (MS). The major components of the essential oil were determined as α-pinene (31.86%), spathulenol (11.16%) and limonene (4.3%) in the specimen TA3004, α-pinene (28.07%), spathulenol (12.37%) and limonene (6.07%) in the specimen TA3014 and α-pinene (26.03%), limonene (14.83%) and spathu - lenol (9.74%) in the specimen TA3017. According to the 50% inhibition (IC50) values (μg/mL) the highest antioxidant values were measured in the methanolic extract of flowers. en_US
dc.description.abstract Öz:ürkiye’de yayılış gösteren ve endemik bir tür olan Hypericum thymopsis Boiss. (Hypericaceae) türünün antioksidan kapasi - tesi ve uçucu yağ bileşimi belirlendi. Analizler için üç farklı popülasyonun örnekleri kullanıldı. Antioksidan kapasiteler yap - rak ve çiçeklerden DPPH yöntemi ile belirlendi. Uçucu yağ analizi bitkinin toprak üstü kısımlarından gaz kromatografisi (GC) ve GC/kütle spektrometresi (MS) ile yapıldı. Uçucu yağın ana bileşenleri TA3004 numaralı örnekte α-pinen (%31.86), spat - hulenol (%11.16) ve limonen (%4.3), TA3014 numaralı örnekte α-pinen (%28.07), spathulenol (%12.37) ve limonen (%6.07), TA3017 numaralı örnekte α-pinen (%26.03), limonen (%14.83) ve spathulenol (%9.74) olarak belirlendi. %50 inhibisyon (IC50) değerlerine (μg/mL) göre, en yüksek antioksidan değerler çiçeklerin metanolik ekstraktında ölçüldü. en_US
dc.language.iso eng en_US
dc.rights info:eu-repo/semantics/openAccess en_US
dc.title "Antioxidant Capacity and Essential Oil Composition of Hypericum thymopsis Boiss. (Hypericaceae) from Turkey" en_US
dc.type article en_US
dc.relation.ispartof Hacettepe Journal of Biology and Chemistry en_US
dc.department İnönü Üniversitesi en_US


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