Kaya, ErtuğrulKarahan, SelimHancı, MustafaYaykaşlı, Kürşat OğuzSarıtaş, AyhanBayram, RecepArslan, Seyfullah Oktay2020-04-302020-04-3020121307671Xhttps://hdl.handle.net/20.500.12684/723Aim: The aim of this study is to measure the level of alpha amanitin toxin using HPLC method from Amanita phalloides mushroom collected in the province of Düzce in 2010. Method: One of the mushrooms as a whole body. The other one was extracted after seperated into parts. The measurement was done by HPLC using 303 nm UV wavelength and 250x4,6 mm C18 5 ?m particle included column. Ammonium acetate+methanol+acetonitrile (80+10+10, v/v/v) was used as a mobile phase, and the flow rate was set 1 ml/min. The results were given as a toxin quantity in 1 g dry mushroom. Results: The amount of alpha amanitin was measured as 4,806 mg (±0,033) in the whole body, 3,522 mg (±0,024) in the cap, 5,318 mg (±0,056) in the lamellar, 0,903 mg (±0,004) in the ring, 2,577 mg (±0,037) in the stipe, 0,698 mg (±0,008) in the volva. Conclusion: The level of alpha amanitin in Amanita phalloides from Duzce Province is differ from different countries. Higher and lower levels of toxin than our data obtained investigations are present in the literature. The reason of this differences might be several factors like extraction methods, analysis methods and environmental conditions. © 2012 Düzce Medical Journal.eninfo:eu-repo/semantics/closedAccessAlpha amanitin; Amanita phalloides; HPLCArticle1421517Q4