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    Determination of bisphenol a migrating from canned food and beverages in markets
    (Elsevier Sci Ltd, 2014) Sungur, Sana; Koroglu, Muaz; Ozkan, Abdo
    The determination of bisphenol A (BPA) in foods and beverages sold in Turkish markets was carried out using high performance liquid chromatography. In this research, foods packed in packages with an inner surface covered with plastic film, such as milk, fruit juice, cream, pudding and tuna samples were used. Furthermore, foods in glass jar and metal cans such as green peas, garniture, corn, tomato paste, pepper paste, pickles, mushroom and bean samples were also used. BPA concentrations were 21.86 +/- 0.80-1858.71 8.24 mu g kg(-1), for canned foodstuffs, 36.48 +/- 0.95-554.69 +/- 3.18 mu g kg(-1) for foods in paper box, not detected - 399.21 +/- 3.26 mu g kg(-1) for foods in glass jar. The change in the amount of bisphenol A in all of these food, based on expiration date, the amount of glucose and sodium chloride in it has been determined. We see that in these kind of food the amount of bisphenol A increases with an increase in the amount of glucose, NaCl and expiration date. (C) 2013 Elsevier Ltd. All rights reserved.
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    Effects of Mycorrhizae and Fertilization on Soybean Yield and Nutrient Uptake
    (Taylor & Francis Inc, 2013) Karaca, Huseyin; Uygur, Veli; Ozkan, Abdo; Kaya, Zulkuf
    Soybean (local variety Arsoy) was grown for 45 days on calcareous Karaburun and Meneke soils. Mycorrhizal inoculation significantly increased both shoot and root yields in the soils. Sulfur (S) fertilization alone did not affect the shoot and root yields in Karaburun soil, whereas there was a great increase in the shoot yield and relatively smaller increase in the root yield for nonmycorrhizal treatments in Meneke soil. The combination of mycorrhizae and S in Meneke soil resulted in a yield less than that obtained for mycorrhizae treatments alone. There was a fluctuation in shoot and root yield upon S and/or phosphorus (P) fertilization. There was an accumulation of magnesium (Mg) and zinc (Zn) in the mycorrhizal treatments, whereas there was a dilution of those elements upon yield increases in the nonmycorrhizal treatments. Apart from those, co-application of mycorrhizae, P, and S, resulted in the greatest root yields in both soils, indicating the potential to increase the shoot yield, too, in a longer growth period.