The oil was extracted from sesame seed with two extraction methods. Traditional (Ardeh oil) and industrial method (cold pressing method: virgin and refined sesame oil) oil extraction was studied to compare the quality and heavy metal content of extracted oils.
How do you make a sesame oil?
In the traditional method, the sesame hulls remove by soaking the sesame seed in solution of water and salt. The dehulled seeds would be roasted and grinded to produced Ardeh (Tahineh) which in combination with water and further squeezing produce the Ardeh oil (sesame paste oil) (Shahidi, 2005 ).
What is the as content of sesame seed?
The As content of all oil samples was in the permissible levels set by Codex Alimentarius (0.1 ppm in edible oils) (Alimentarius, 1999 ). The As content of sesame seed was estimated 0.042 mg/kg which is lower than results of Fakoor Janati research (Fakoor Janati et al., 2011 ).
Is oil extracted from whole sesame seed stable in oxidation?
It was shown that oil extracted from whole sesame seed without dehulling could be stable in oxidation which is in agreement with results of Kamal?Eldin (Kamal?Eldin & Appelqvist, 1995) and Konsoula (Konsoula & Liakopoulou?Kyriakides, 2010 ), although it was not in agreement with Tenyang results (Tenyang et al., 2017 ).