Changes in quality indicators of seeds of cereals, oil crops and their processed products

We analyzed qualitative (biochemical) and safety indicators (toxic elements) in seeds of cereals, oil crops and products of their processing, the comparison of the biochemical traits of the corresponding crops for two years (yields of 2019 and 2020) was conducted. The purpose of the work is a comparative estimation of qualitative and safety indicators (toxic elements) in seeds of cereals, oil crops and products of their processing (for two years). As material of the research there were used seeds of cereals (wheat, corn), seeds of oil crops (sunflower, soybean) and products of their processing (sunflower cake, sunflower meal, mixed feed for pigs). The analysis was carried out by gravimetric, titrimetric and atomic absorption methods. As a result of the study there were noted the high values of the following indicators: the mass fraction of moisture in seeds of cereals and their processed products; the mass fraction of crude protein and crude fiber in seeds of oil crops and their processed products; the mass fraction of crude fat and crude ash in the seeds of oil crops; concentrations of toxic elements (cadmium and mercury) did not exceed the limit of permissible concentrations. There was practically no change in the concentration in the two-year dynamics in the mass fraction: of moisture in seeds of oil crops; of protein in processed products; of crude fat, crude fiber, and crude ash; the contents of cadmium and mercury in all studied objects.