Integrated Use of Microalgae in Waste Water Purification and Processing of Food Industry Waste

The processing of liquid and solid waste from the food industry using microalgae is considered on the example of St. Petersburg enterprises. Waste water from Baltika Brewing Campaign and food waste from public catering enterprises were used in the work, using the example of food waste from the canteens of Peter the Great St. Petersburg Polytechnic University. Тhe possibility of purifying wastewater from the brewing industry using microalgae was studied. The obtained biomass of microalgae after purification of waste water from the food industry is proposed to be used to accelerate the processes of anaerobic digestion of food waste generated in the canteens of the Peter the Great St. Petersburg Polytechnic University. It has been shown that the addition of microalgae biomass is capable of accelerating the decomposition of food waste and producing more biogas with a maximum methane content.

State and development scenarios for export of food industry waste and feed for animals in Russia and Stavropol territory

The purpose of the work is to identify the main commodity-geographical trends in the development of the export potential of food and processing industry waste and animal feed in Russia and the Stavropol territory, on the basis of which to formulate scenarios for the development of exports of this segment in the world market. The methodological basis is a set of statistical, economic-mathematical and descriptive methods. The article examines the state, dynamic and structural trends in the export of food waste and animal feed in Russia and the Stavropol territory. Results. The trends of changes in the commodity-geographical structure of the export of food industry waste and animal feed in Russia and the Stavropol territory are revealed. It is concluded that there is an urgent need to expand the production and export of food waste and animal feed in the regions of the Russian Federation, which should be based on scenarios for the development of the world market, in combination with the established opportunities and threats for agro-oriented enterprises, in particular, allowing to identify several potential niches for commodity and territorial development of the Stavropol territory. The novelty of the results. Identified “empirical trends” in the implementation of the export potential of the Stavropol territory, consisting in increasing the volume of exports of traditional products in priority geographical areas, and representing new trends in the development of macro- and regional agro-industrial complex. The paper substantiates the growth of deliveries in the future according to the identified export targets of the product group “Waste from the food industry and animal feed” in the Stavropol territory (mainly to the CIS countries, Italy and Spain), as well as the need to form communications and logistics, allowing to form “an export-oriented platform” In the Stavropol economy.

Exploring the Impact of Lipid-Rich Food Industry Waste Carbon Sources on the Growth of Candida cylindracea DSM 2031

The aim of this study was to evaluate the possibility of using several lipid-rich food industry wastes in the culture medium on the growth of Candida cylindracea DSM 2031 yeast strain. Four lipid wastes from the food industry: waste fish oil, rancid ghee, waste pork lard, and waste duck processing oil were investigated. It has been shown in the laboratory scale that the above-mentioned wastes can be used to obtain biomass and produce lipolytic enzymes by the tested strain and the C. cylindracea extracellular lipase is not constitutive. High yields of biomass (12.84, 12.75, and 12.24 g/dm3) were obtained in media containing waste duck processing oil, olive oil, and waste pork lard, respectively. The highest lipolytic activity was obtained in the media containing waste fish oil and rancid ghee (0.050 and 0.047 U/cm3). During 192-h flask cultures the highest extracellular lipase activity and biomass yield were observed in the late logarithmic phase. The study showed that there is a potential for waste management to produce lipolytic enzymes or to produce yeast biomass. The use of waste substrates may contribute to lowering the costs of commercial production, and such a solution is part of the sustainable development strategy.