Investigation of some biochemical and physiological parameters of genetically modified (transgenic)corn (Zea mays L.) seeds

This study aimed to investigate widely the effects of the gene or genes that inserted to activate the pesticide production in line MON810 to the nutritional composition and defence mechanisms in grains. Total protein and fat content besides carbohydrate and fatty acid composition were determined. Proline, total phenolic and total flavonoid content were analysed. The possible risk of lipid peroxidation of membrane lipids arises from the modification was evaluated by the means of MDA determination. Activities of some important enzymes (SOD, POD, APX and GR) involved in defence against oxidative damage caused by stress were measured. The findings of the study showed that the genetic modification alters the nutritional values and antioxidant capacity of maize kernels. Significant differences were determined between GM and control groups in terms of analysed parameters.