Browsing by Author "Sezgin, Sema"

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Determination of Antioxidant Activities and Chemical Composition of Sequential Fractions of Five Edible Mushrooms From Turkey
(Springer india, 2020) Sezgin, Sema; Dalar, Abdullah; Uzun, Yusuf
Tricholoma scalpturatum, Tricholoma populinum, Neolentinus cyathiformis, Chlorophyllum agaricoides, and Lycoperdon utriforme have been traditionally utilized as food in Turkey for a long time. The present study focused on determining antioxidant activities, total phenolic groups contents (flavonols, hydroxycinnamic acids, proanthocyanidins, and anthocyanins), phenolic compounds and fatty acids of sequential extracts (n-hexane, ethyl acetate, chloroform, acetone, ethanol, and pure water) obtained from five wild edible macrofungi species. Ethanol and acetone (or ethyl acetate) were found as the most efficient solvents in terms of antioxidant activities and extraction efficiency. Antioxidant studies showed that L. utriforme, C. agaricoides, and T. populinum exhibited the highest radical scavenging and reducing activities and contained the highest phenolic contents. Chromatographic studies revealed that phenolic acids (protocatechuic, gallic, and chlorogenic acids) and fatty acids (oleic, linoleic, and palmitic acids) were the major contributors of the antioxidant activities of the extracts. The results obtained suggest the utilization of these macrofungi species as significant sources of natural antioxidants.
Mineral Composition of Some Wild Mushrooms From Eastern Anatolia, Turkey
(2018) Uzun, Yusuf; Sezgin, Sema; Dalar, Abdullah
Within this study 40 samples including sequential extracts, water extracts and drug samples obtained from five mushroom samples wild grown from Turkey were evaluated for their mineral composition analysis. All samples were found as rich sources of minerals notably Ca, K, Si, Mg, Se and Si which might contribute health enhancing properties. The levels of heavy metals were detected in low amounts in the extracts of mushroom species (except T. populinum). Acetone and ethyl acetate were detected as the most efficient solvents in the isolation of minerals from mushroom samples. Our findings showed that extracting of mineral compounds were varied due to the type of solvents applied and mycochemical diversity and the reported mineral compounds profiles suggest that these wild-edible mushrooms might be potential sources of therapeutic nutraceuticals