Effect of sesame oil extraction by traditional and cold press methods on total aflatoxin content

Abstract

Background: Aflatoxin contamination is an undesirable issue in the oil industry. Methods of extraction have efficient effects on the aflatoxin contents of achieved oil. Aim: The present survey was performed to assess the effects of traditional and cold press extraction methods on the aflatoxin contents of sesame oil. Methods: A total of 17 crude sesame, 17 unfiltered oil, and 17 filtered oil samples were collected from different steps of oil production by cold press. Additionally, a total of 9 crude sesame, 9 unfiltered oil, and 9 filtered oil samples were collected from different steps of oil production by the traditional method. All samples were tested for aflatoxins B-1, B-2, G(1), and G(2). Aflatoxin content was determined by high-performance liquid chromatography. Results: Dehulling reduced total aflatoxin as 79.79. Traditional and cold press procedures caused 8.2 and 70.22 transferring of total aflatoxin from crude sesame to achieved oil, respectively. Conclusion: Traditional method was more effective than cold press in decreasing aflatoxin contents of achieved sesame oil.