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    Dye biosorption from aqueous solutions by fomitopsis pinicola (sw.) p. karst
    (2011) Akata I.; Sinag A.; Işlek C.
    Methylene Blue adsorption by Fomitopsis pinicola (Sw.) P. Karst. collected from Ki{dotless}zi{dotless}lcahamam Işi{dotless}k Mountain, Ankara (Turkey) was investigated. Different initial dye concentrations, adsorbent doses, initial pH and temperature levels of the adsorption capacity of Fomitopsis pinicola were tested in order to reveal the stability and adsorption capacity of the fungus. The effect of the experimental parameters on the adsorption process was also described. The equilibrium binding was described in terms of Langmuir isotherm depending on the dye concentration. Desorption studies were also conducted. The results obtained from the batch experiments revealed the ability of the fungus to remove methylene blue. Thermodynamic parameters, i.e., Gibbs free energy, enthalpy and entropy changes were also calculated. From the calculated kinetic parameters, it can be concluded that adsorption data were also fitted to the pseudo-second-order kinetic model. From the results obtained, it can be suggested that Fomitopsis pinicola can be used as a low-cost biosorbent in wastewater treatments.
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    Fomitopsis pinicola in healthful dietary approach and their therapeutic potentials
    (Akademiai Kiado Rt., 2017) Sevindik M.; Akgul H.; Akata I.; Alli H.; Selamoglu Z.
    Certain macrofungi species have been used for medical purposes and as nutrients since the old times. The present study aims to determine and compare total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI) values, and Fe, Zn, Cu, Pb, and Ni levels in Fomitopsis pinicola (Sw.) P. Karst samples gathered in Balikesir province Kazdagi National Park and Yalova province Çinarcik Hasan Baba Woods in Turkey. TAS, TOS, and OSI values of mushroom samples were measured with Rel Assay kits. Mushroom heavy metal content was determined using an atomic absorption spectrophotometer and wet decomposition procedure. In the samples collected from Çinarcik district, OSI values were 0.99±0.03, while in the samples collected from Kazdagi National Park, OSI values were 0.13±0.01. Fe content in the samples collected from Çinarcik district were 265.9±70.5 ppm, while Fe content in the samples collected from Kazdagi National Park were 31.31±1.43 ppm. As a result, it is considered that the mushrooms could be used as antioxidant source. Furthermore, it could be argued that as a result of the increase in heavy metal levels, the production of oxidants increases in living organisms, which in turn increases the oxidative stress index. © 2017 Akadémiai Kiadó, Budapest.