For the investigation of detection and quantification of adulteration
of the sesame oil with other vegetable oils, mixtures of the
pure sesame oils with each one of the above pure vegetable oils
were prepared. The mixed proportions of vegetable oils range from
5% to 50%. For each vegetable oil, six mixtures were prepared with
percentages 5%, 10%, 15%, 20%, 30% and 50% of the respective oil in
the adulterated sesame oil samples. Totally, 720 oil mixture samples
and 26 pure oil samples were prepared. These samples were
kept in a cold room with constant temperature before and during
analysis.