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  • Title: The in vitro antioxidative properties of the essential oils and methanol extracts of Satureja macrosiphonia Bornm.
    Author: Amiri H.
    Journal: Nat Prod Res; 2011 Feb; 25(3):232-43. PubMed ID: 20623422.
    Abstract:
    This study was designed to examine the in vitro antioxidant activities of the essential oil and methanol extracts of Satureja macrosiphonia in pre-flowering and flowering stages. GC and GC-MS analyses of the essential oils resulted in the identification of 35 and 24 compounds, representing the 95.1% and 92.6% of the oils, respectively. Major constituents of the oil of the pre-flowering stage were terpinene-4-ol (20.8%) and α-terpineol (14.7%), while in the oil of the flowering stage α-terpineol (26.7%) and borneol (16.6%) were found to be the main components. The samples were subjected to screening for their possible antioxidant activity by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and β-carotene-linoleic acid assay. In general, the polar subfraction of methanol extract in the flowering stage exhibited the greatest antioxidant activity in the DPPH test. In the β-carotene-linoleic acid test, the essential oil of the flowering stage had the highest antioxidant activities.
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