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This study aimed to measure the total arsenic content deposited in the ovaries of three consecutive generations of mice. The animals were treated with two different concentrations to determine whether histological changes were caused in the ovaries. The control group of mice received tap water, whereas the experimental groups were given different concentrations of dissolved arsenic (III)-oxide. The arsenic content in the ovaries in both experimental groups increased with each generation. The highest content was recorded in the third generation of the second experimental group. Between the two experimental groups in each generation, significant differences in the average number of corpora lutea and ovarian follicles were identified. Arsenic caused structural changes in the ovaries in both experimental groups in all three consecutive generations.

Fish meat and fish products are usually considered as healthy foods, mostly because of their content of unsaturated fatty acids, which have a beneficial effect on human health. On the Serbian market, fish and shellfish are commonly present as fresh, frozen and canned, but not regulating and monitoring the existence of high levels of different chemical hazards can lead to human health problems. The aim of the present paper is to provide an overview of the contamination of fish and their products from the Serbian market with regard to the most significant chemical hazards. The following contaminants are considered: lead, mercury, cadmium, arsenic, copper, iron and zinc representing heavy metals and metalloids; endrin, aldrin, dieldrin, lindane, endosulfans, dichlorodiphenyltrichloroethane (DDT) and its derivatives as the most significant organochlorine pesticides and; benzo(a)pyrene, benz(a)anthracene, benzo(b) fluoranthene and chrysene as four priority polycyclic aromatic hydrocarbons (PAH4). Bearing in mind that there is no food, including fish and fish products, that does not contain harmful substances and various hazards, there is a need at national and lower

In this study, we evaluated the cumulative effects of arsenic (III) oxide on the number of mouse offspring over three consecutive generations and monitored changes in levels of the reproductive hormones, oestradiol and progesterone in female mice during the dioestrus phase of the cycle. The control group received water from the mains. In two experimental groups, mice were given drinking water containing dissolved arsenic (III) oxide at concentrations of 10.6 mg L-1 and 106 mg L-1, respectively. These concentrations represent the values converted from a human model to an animal model (mice) thus correspond to the arsenic content of the groundwater in the southern part of the Pannonian Basin, in the province of Vojvodina, in the Banat region, in particular in the town of Zrenjanin. The average number of newborn mice in both experimental groups decreased for three consecutive generations. The total arsenic content of day-old mice did not show significant differences between the experimental groups. Arsenic (III) oxide affected the reproductive hormone levels of female mice at both concentrations.

Honey's unique qualities should last for several years when properly stored. Therefore, it is up to manufacturers to choose the right shelf life for their product while also considering the product's nature. Physicochemical parameters (water content, electrical conductivity, free acidity, pH, ash, water-insoluble matter, hydroxymethylfurfural (HMF), sugar content and composition, and diastase activity) were analyzed in 24 samples of sunflower honey collected from several localities in Vojvodina, Serbia. Crystallization indices were also calculated. Furthermore, the impact of eighteen months of room temperature storage (22 ± 2 °C) in a dark place on selected physicochemical parameters (water, HMF, diastase activity, pH value, and free acidity) was investigated. The results of the initial test indicated that the tested samples of sunflower honey from Vojvodina is of good quality because the parameters under examination revealed results that were within the legal bounds of both national and European legislations. Eighteen months of storage at room temperature reduced diastase activity by 2 times, increased HMF content by about 17 times, and decreased the pH value of honey from a mean value of 3.66 to 3.56. The water content was relatively stable at 17.01% before storage and 16.29% after storage. The storage of sunflower honey did not have an impact on the free acidity.