Browsing by Author "Azbar N."

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    Agar-plate screening for textile dye decolorisation by white rot fungi Pleurotus species (Pleurotus cornucopiae var.citrinopileatus, P. djamor, P. eryngii, P. ostreatus and P. sajor-caju)
    (2007) Kalmiş E.; Azbar N.; Kalyoncu F.
    A screening test for five different white rot fungal strains (Pleurotus species: Pleurotus cornucopiae var. citrinopileatus, P. djamor, P. eryngii, P. ostreatus and P. sajor-caju) was carried out to assess their decolorisation capacities for five different textile dyestuffs, namely Indanthren yellow F3GC Collosiol (IYFC), Blue CC Dranix (BCCD), Indanthren Blue CLF Collosiol (IB), Remazol Brilliant Blue BB (RB), and Levafix Brilliant Blue E-B (LBB) on agar plates. Full decolorisation was observed only for RB and LBB (dye concentrations <20 mg L-1). Similar to LBB dye, IB was also not decolorized at all dye concentrations above 20 mg L-1, but the original color of the dye was converted into yellow below 20 mg L-1 by all organisms used. None of the organism used in this study was able to fully decolorize IYFC dye, but conversion of original color of the dye into brown was observed for all dye concentrations. In addition, no decolorisation was observed for BCCD at all dye concentrations used. In terms of radial growth, in most cases, low dye concentrations (< 200 mg L-1) were well tolerated by the organisms used, except for some of them, showing either retardation or full inhibition in growth. © by PSP 2007.
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    Feasibility of using olive mill effluent (OME) as a wetting agent during the cultivation of oyster mushroom, Pleurotus ostreatus, on wheat straw
    (2008) Kalmis E.; Azbar N.; Yildiz H.; Kalyoncu F.
    In this study, cultivation of oyster mushroom, Pleurotus ostreatus, on wheat straw substrate containing tap water and olive mill effluent (OME) mixture containing varying volume of OME was studied in order to investigate the feasibility of using OME as an alternative wetting agent and OME's impact on some fundamental food quality characteristics of mushrooms. Time period for mycelial colonization, primordium initiation and first harvest were comparatively evaluated with the control group. It was shown that the use of OME and tap water mixture consisting of OME up to 25% volumetrically was possible for the purpose of commercial mushroom production. Experimental results obtained from substrate containing 25% OME mixture showed no statistically significant difference compared to control group. The negative effects of increasing volume of OME in the mixture were also indicated by bioefficiency, which was found to be 13.8% for substrates wetted with 100% OME, whereas bioefficiency was 53.6% for control group. Increasing volume of OME in the mixture resulted in deformation of fruit body shape, whereas no significant difference in food quality was observed due to the higher amount of OME. This work suggested that the use of OME up to 25% as moisturizer could be considered, especially for the locations having significant number of olive mills and mushroom producers, both as an environmentally friendly solution for the safe and ecological disposal of OME and a practical way for recovering OME's economic value thereby. © 2006 Elsevier Ltd. All rights reserved.
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    Evaluation of two wild types of Pleurotus ostreatus (MCC07 and MCC20) isolated from nature for their ability to decolorize Benazol Black ZN textile dye in comparison to some commercial types of white rot fungi: Pleurotus ostreatus, Pleurotus djamor, and Pleurotus citrinopileatus
    (2008) Kalmiş E.; Azbar N.; Kalyoncu F.
    Biological decolorization of Benazol Black ZN, a reactive azo-type textile dyestuff, was comparatively studied using 3 different commercial-type white rot fungi strains (Pleurotus ostreatus, Pleurotus cornucopiae var. citrinopileatus, Pleurotus djamor, and 2 wild types of P. ostreatus (MCC07 and MCC20) isolated from the nature. The initial dye concentrations in the medium were 500 and 1000 mg·L-1. All the organisms studied decolorized Benazol Black ZN to varying degrees. At low dye concentration, both commercial and wild type of P. ostreatus resulted in the best decolorization, conversely, wild-type P. ostreatus (MCC07) was found to be much more robust against increasing dye concentration and provided the best decolorization efficiency at high dye concentration. © 2008 NRC Canada.