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Chemical Constituents of Two Endemic Sideritis Species from Turkey with Antioxidant Activity

Carikci, Sema; Kilic, Turgut; Azizoglu, Akin; Topcu, Gulacti


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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Carikci, Sema</dc:creator>
  <dc:creator>Kilic, Turgut</dc:creator>
  <dc:creator>Azizoglu, Akin</dc:creator>
  <dc:creator>Topcu, Gulacti</dc:creator>
  <dc:date>2012-01-01</dc:date>
  <dc:description>In this study, two Sideritis species, endemic to Turkey, S. niveotomentosa Huber - Morathii, S. brevidens P. H. Davis have been studied for their diterpenic compounds and the antioxidant properties. Eight known diterpenoids, which have ent-kaurene skeleton, were isolated from acetone and methanol extracts of these species. The structures of the isolated diterpenes were determined by using the NMR (H-1-NMR, C-13-NMR, COSY, HMQC, and HMBC) spectroscopy. The analysis of the phenolic compounds of the extracts was performed by high performance liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Also the antioxidant capacity of the extracts was investigated namely by two methods; free radical scavenging and beta-carotene bleaching activities.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/87807</dc:identifier>
  <dc:identifier>oai:zenodo.org:87807</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>RECORDS OF NATURAL PRODUCTS 6(2) 101-109</dc:source>
  <dc:title>Chemical Constituents of Two Endemic Sideritis Species from Turkey with Antioxidant Activity</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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