Beliaev5 Mikhail A. Pushkarev1 , Grigoriy V. Kozlov2 , Eldar R. Yagmurov4 , Angelina A. Agureeva6 Inessa A. Fagradyan7 BIOCATALYTIC CONVERSION OF LIPIDCONTAINING WASTES FROM FISH PROCESSING INDUSTRIES St. Petersburg State Institute of Technology (Technical University), 26, Moskovsky Pr., St Petersburg, 190013, Russia e-mail: malexpush@bk.ru The aim of this study was to develop an ecologically sustainable and economically viable way of utilization of lipid – containing wastes from fish processing with the possibility of obtaining valuable products: biodiesel fuels and concentrate of omega – 3 polyunsaturated fatty acids. <...> The key technologically important properties of wastes from fish processing industries such as temperature, molar ratio of reagents, presence of inert atmosphere, amount of biocatalysts, were studied for their influence on the catalytic reaction by Novozym 435 as well as on transesterification of fish oil triacylglycerides with ethanol. <...> The method of fatty acids fractionation by using urea complexation has been modified for substrate properties. <...> Correspondingly, the diagrams of fatty acids fractionation during the multi – step urea complexation have been obtained. <...> The results obtained would allow to create ecologically attractive technological processes that would have simpler equipment standards (temperature 50-60 °С, absence of alkalis and acids, atmospheric pressure) and smaller number of technological steps involved, the excluded steps are: washing and drying fractions of fatty acid esters, evaporation of acyl-acceptor excesses, drying of acyl glycerides, dehydration of acyl-acceptors.) Ecological stability is achieved by biological degradation of all reaction mixture components. <...> Фаградян БИОКАТАЛИТИЧЕСКАЯ КОНВЕРСИЯ ЛИПИДСОДЕРЖАЩИХ ОТХОДОВ РЫБОПЕРЕРАБОТКИ Санкт-Петербургский государственный технологический институт (технический университет), Московский пр., 26, Санкт-Петербург, 190013, Россия e-mail: malexpush@bk.ru Целью данной работы являлась разработка экологически безопасного и экономически перспективного способа утилизации липидсодержащих отходов рыбопереработки с получением ценных продуктов - концентрата омега–3 полиненасыщенных жирных кислот и биодизельное топливо. <...> Изучены ключевые технологически значимые свойства отходов рыбопереработки профильных предприятий Санкт-Петербурга, влияние важнейших технологических параметров (температура, соотношение реагентов, наличие инертной атмосферы, количество биокатализатора) на протекание, катализируемой иммобилизованной <...>