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Öğe Biosorption method of removal of chromium(III) accumulated with Nasturtium officinale in water(Chemical Publishing Co., 2008) Basaran D.; Opak-Kara Y.In present studies, Nasturtium officinale was used as a biosorption plant to remove Cr3+ present in water. For these studies, 0.1, 0.3, 0.5, 1.0, 2.0, 3.0, 4.0 and 5.0 ppm solution of Cr3+ has been prepared in water. Nasturtium officinale was immersed in the experimental solutions for 24, 48 and 72 h. The general apperance of the plants have been observed before and after 24, 48 and 72 h. The plants have been analyzed with atomic absorption for measuring the concentration. The initial and final values of concentration of Cr3+ have been found by drawing the calibration lines in UV region. The wet weight has been measured with sensitive balance. The amount of Cr 3+ absorption by plant has been calculated with the dependence of the wet weight.Öğe The comparison studies on the proliferation of lateral buds of Vitis vinifera L.cv. alphonse during different periods of the year at in vitro conditions(1998) Isikalan C.; Adiyaman F.; Basaran D.In this study, lateral buds of Vitis vinifera L.cv. Alphonse were used as material. During micropropagation, 2mg/l BAP (6-benzylaminopurine) and during rooting, 2mg/l NAA (?-Naftalen Aseticacid) was added into the Murashige-Skoog (1) medium, which is used in culture studies. our aim is to compare proliferation capabilities of lateral buds of Alphonse grapevine in terms of various periods of year in in-vitro conditions. As a result, rooty seedling were obtained from lateral buds cultivated in yearly period of time, and it was determined that the most favourable and productive seedlings were those obtained from materials cultivated in the months November and December. It was also established that the success rate of seedlings obtained from materials cultivated in these months was about 80-85%.Öğe Heavy metal biosorption characteristics of the submerged aquatic plant (Nasturtium officinale)(Chemical Publishing Co., 2010) Okumus V.; Basaran D.; Onay A.In the present investigation an aquatic plant, Nasturtium officinale was examined for its biosorption ability of heavy metal ions. The results obtained from biosorption experiments were used to understand the driving forces that govern the interaction between metal ions and biosorbent. The experimental biosorption data were fitted to the Scatchard plot, Langmiur and Freundlich isotherms. According to the parameters of the Langmiur isotherm, the maximum biosorption capacities of Cd 2+ and Co 2+ were 0.56 and 0.49 mg/g, respectively. In view of Freundlich isotherms, the maximum biosorption capacities of Cd 2+ and Co 2+ were 2.23 mg/g for both of metal ions.Öğe Simultaneous removal of indomethacine, papaverine and allopurinol from aqueous solution by using submerged aquatic plant Nasturtium officinale(Chemical Publishing Co., 2010) Okumus V.; Oral E.; Basaran D.; Onay A.Simultaneous removal of indomethacine, papaverine and allopurinol from aqueous solution by using submerged aquatic plant Nasturtium officinale biomass in high performance thin layer chromatography (HPTLC) was studied. Optimum biosorption conditions were determined as a function of contact time, pH, removal capacity of the amount of biomass and initial dry concentration. Experiments were performed in batch conditions. Concentrations of the drugs in the remaining solutions were simultaneously analyzed by HPTLC. Langmuir and Freundlich models were applied to describe the biosorption isotherm of the drugs by aquatic plant Nasturtium officinale biomass. According to the results, optimum parameters were found as 2.0 g biomass, pH:5.0 and 60 min contact time. Obtained from plots of Langmuir and Freundlich adsorption models, the highest drug uptakes were calculated from Langmuir isotherm and found to be 43.10, 39.68 and 38.61 mg/g for indomethacine, papaverine and allopurinol, respectively.
