Various grape seed samples collected in wineries, as a by‐product before and after the fermentation process of pomace and after fermentation and distillation process of pomace, are used for oil extraction by cold pressing. Fatty acid profile, content and composition of tocopherols, content and composition of phenols, as well as the oxidative stability of oils are investigated. Obtained results show that cold pressed grape seed oils are characterized by different nutritional quality and oxidative stability, due to peculiar effects of the fermentation and distillation processes. Cold pressed oil obtained from cleaned and dried seeds of grapes after fermentation and/or distillation process is richer in bioactive compounds compared to the oil obtained from grape seeds without fermentation. On the other hand, the high temperature in distillation process of pomace has a negative effect on the content of some bioactive compounds and oxidative stability of oil from this waste material. Practical Applications: In this paper, different cold pressed grape seed oils are analyzed for nutritionally important compounds and oxidative stability. The results show that, depending on the source of grape seeds as waste material, the nutritional quality of the obtained oils differs. In the production of high quality cold pressed grape seed oil, seeds from different sources of waste should not be mixed. It is not recommended to use the seeds from the waste material after distillation process in the production of high quality cold pressed grape seed oil. Some chemical characteristics of cold pressed grape seed oils obtained from different winery waste are analyzed. The different waste materials have a pronounced effect on the quali‐quantitative profiles of bioactive compounds and induction period of oils. Obtained results show that cold pressed grape seed oils are characterized by different nutritional quality and oxidative stability, due to peculiar effect of fermentation and distillation processes. For production of high quality cold pressed oil, seeds from different winery waste material should not be mixed.

Six cold-pressed oil samples obtained from the seeds of different grape varieties grown in a Fruška Gora vineyard in the Republic of Serbia were examined for chemical and nutritive quality, as well as antiradical capacity. All the tested samples were of good quality, but the results showed noticeable differences in seed oil properties for red and white grape varieties. The highest content in total tocols, 575.23 ± 4.46 mg/kg, was found in the red grape seed oil of the Merlot variety, but the vitamin E activity of white grape seed oils was significantly higher. Regarding single phenols, the most prevalent fraction in all the oil samples was ursolic acid, up to 336.3 ± 4.8 μg/g in the grape seed oil of the Hamburg variety. The highest content in the total phenolic compounds, 54.92 ± 0.93 μg GAE/g, was detected in the oil of red grape seeds. Although significant differences existed between samples, EC50 values were the lowest for the red grape seed oils, varying from 29.84 ± 1.07 to 65.34 ± 0.32 mg oil/mg DPPH, indicating that these oils had the highest antiradical capacity.

Managing asbestos streams in developing and transition countries is particularly challenging. Deficiencies are often present for adequate procedures for the management of asbestos waste; solid quality data or databases on the quantities of asbestos production and usage are missing and asbestos inventories or the registry of asbestos-related diseases following European Union (EU) or other regulations are not in place. This paper aims to develop a model for determining and assessing the quantity of asbestos in the built environment of a transition country. Quantities of asbestos products and life expectancy of those products were assessed to develop a model that forecasts flows and stocks of asbestos products and wastes. The overall objective is to evaluate the model and show the manifestation of asbestos in the waste stream in a case study on a country with a transition economy, such as Serbia. Results show that total quantities of asbestos fibre consumption are approximately 0.5 million tonnes; the largest amount of waste generation is expected in the 2020s. Therefore, it is necessary to prepare for the forthcoming quantities of waste by improving legal procedures, implementation of existing regulations, and provision of economic resources. An important link for the adequate management of asbestos waste is to raise public awareness of the dangers and importance of proper and timely disposal of asbestos products.