Yazar "Dogan, Hamide" seçeneğine göre listele

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    DETERMINING THE TOTAL ANTIOXIDANT STATUS AND OXIDATIVE STRESS INDEXES OF HONEY SAMPLES OBTAINED FROM DIFFERENT PHYTOGEOGRAPHICAL REGIONS IN TURKEY
    (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2015) Akyol, Ethem; Selamoglu, Zeliha; Dogan, Hamide; Akgul, Hasan; Unalan, Adnan
    This study aimed to determine the total antioxidant and oxidant status and oxidative stress index of honey samples which were collected from 11 different phytogeographical regions in Turkey. Honey samples were kept at 4 degrees C until analysis. Total antioxidant status, total oxidant status and oxidative stress indexes were defined with in vitro analyses in extracted honey samples, and then, the obtained data were compared statistically. These characteristics of honey were analysed by the most sensitive and reliable measurement kits developed newly. In addition, biological activities of honey samples originating from different regions were also compared. As a result of the study, the highest total antioxidant capacity was observed (P<0.01) in the honey samples obtained from Duzce and Mugla regions. The results also showed that total antioxidant capacities of honey samples could change according to various phytogegraphic properties of different regions in Turkey. Besides, antioxidant properties of honey depended on phenolic compounds that could change according to plant vegetation of honey obtained from different regions.
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    Determining the total antioxidant status and oxidative stress indexes of honey samples obtained from different phytogeographical regions in Turkey
    (Parlar Scientific Publications, 2015) Akyol, Ethem; Selamoglu, Zeliha; Dogan, Hamide; Akgul, Hasan; Unalan, Adnan
    This study aimed to determine the total antioxidant and oxidant status and oxidative stress index of honey samples which were collected from 11 different phytogeographical regions in Turkey. Honey samples were kept at 4 °C until analysis. Total antioxidant status, total oxidant status and oxidative stress indexes were defined with in vitro analyses in extracted honey samples, and then, the obtained data were compared statistically. These characteristics of honey were analysed by the most sensitive and reliable measurement kits developed newly. In addition, biological activities of honey samples originating from different regions were also compared. As a result of the study, the highest total antioxidant capacity was observed (PO.Ol) in the honey samples obtained from Duzce and Mugla regions. The results also showed that total antioxidant capacities of honey samples could change according to various phytoge- ographic properties of different regions in Turkey. Besides, antioxidant properties of honey depended on phenolic compounds that could change according to plant vegetation of honey obtained from different regions.
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    ENVIRONMENTAL EFFECTS ON BIOLOGIC ACTIVITIES OF POLLEN SAMPLES OBTAINED FROM DIFFERENT PHYTOGEOGRAPHICAL REGIONS IN TURKEY
    (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2016) Selamoglu, Zeliha; Akgul, Hasan; Dogan, Hamide
    Bee pollen is considered a health food with a wide range of therapeutic properties. This study aimed to determine the environmental effects on biologic activities of pollen samples obtained from eleven different environmental sources and geographical origins in Turkey (Artvin, Balikesir, Duzce, Edirne, Kahramanmaras, Mersin, Mugla, Nigde, Ordu, Sivas and Van). Pollen samples were kept at +4 degrees C until extracted. Total antioxidant status, total oxidant status and oxidative stress indexes in pollen samples extracted with specific methods were defined with in vitro analyses and results comparised. These characteristics of pollen were analysed by the most sensitive and reliable measurement kits developed newly. The highest total antioxidant capacity was observed (P<0.01) in pollen samples obtained from Artvin and Balikesir provinces. Total antioxidant capacities of pollen samples collected from different regions demonstrated differences because of different phytogeographic characteristics of regions in Turkey. Antioxidant properties of pollen depended on phenolic compounds that could change according to plant vegetation of pollen obtained from different regions.