Table 4presents the results of the esters of fatty acids identified by means of gas chromatography. When analyzing the data, it is evident that the treatments directly interfered in the concentration of the three main fatty acids belonging to the C18 group, with reductions of approximately 1.5% in steriac acid, 4% in linoleic acid and increase of approximately 6% in oleic acid.Fig. 3depicts the relation between the acidity reduction and increase in concentration of oleic acid according to type of treatment. Production of this acid was favored by the reduction of the two other acids belonging
to the same group. The low main fatty acids variation percentage of treatmentsT2 and T3 may be justified by the same variation between both treatments as a function of acidity. A study carried out bySanibal and Mancini Filho (2002) approached references about genetic modification in fatty acids. The authors presented a study of genetically modified canola oil with high concentration of oleic acids and with different levels of linoleic acids (high, medium and low). The oil with low concentra-