1. Department of Chemistry, Faculty of Science and Arts; Gazi University; Ankara 06500 Turkey
2. Department of Biology, Faculty of Science and Arts; Erzincan University; Erzincan 24100 Turkey
3. Department of Food Science, Ispir H. Polat Vocational School; Atatürk University; Erzurum 25900 Turkey
4. Department of Chemistry, Faculty of Science; Atatürk University; Erzurum 25240 Turkey