2.2.1. Sample Preparation
Sample preparation procedures were performed according to the instructions of the test kit (Rida Aflatoxin Column Art no.: R5001/5002, R-Biopharm, Darmstadt, Germany) manual [22]. 25 mL of methanol (70%) was added to 5 g of tarhana. Afterwards, the solution was extracted by mixing gently for 10 minutes at room temperature