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    Wyświetlanie 1-5 z 5
    Tytuł:
    Research Study of the Conditions of Wastes Lipolysis Lipid Fraction
    Autorzy:
    Sklyar, Victoria
    Krussir, Galina
    Lebedenko, Tetyana
    Khomich, Galina
    Kovalenko, Irina
    Tematy:
    secondary raw materials
    soapstock
    oilseed fat industry
    ecological biotechnology
    lipolysis
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Powiązania:
    https://bibliotekanauki.pl/articles/125218.pdf  Link otwiera się w nowym oknie
    Opis:
    Biotechnological processing of secondary raw material resources of the oil and fat industry in useful products is the most expedient and effective in terms of both economic and environmental requirements. The obtained experimental results of the study indicate the prospect of lipolysis with the lipase Rhizopus japonicus fat fraction of waste generated during the hydrogenation of vegetable oils. The greatest activity in relation to olive oil is expressed by lipase Rhizopus oryzae. Lipase Rhizopus japonicus exhibits the highest activity relative to hydrogenated fat, which is explained by its substrate specificity. It was found that the content of free fatty acids in the hydrolyzate reached the saturation level after 72 hours of hydrolysis, and the concentration of triglycerides during this time of hydrolysis decreased to a minimum value. The results of research should be used to improve the processing technology of waste oil and fat industry in the food industry.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of the Conditions for Accelerating the Composting Process when Adding Microbial Communities
    Autorzy:
    Sokolova, Valeriia
    Krusir, Galina
    Sagdeeva, Olga
    Gnizdovskyi, Oleksandr
    Malovanyy, Myroslav
    Tematy:
    biotechnology
    ecological biotechnology
    composting
    biologically active additive
    microorganisms
    phytotoxicity
    microbiological process
    food waste
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Powiązania:
    https://bibliotekanauki.pl/articles/1839195.pdf  Link otwiera się w nowym oknie
    Opis:
    The study of the composting process is a very urgent task. The rapid growth in food production leads to the formation of waste, which should be safely disposed of in a natural way – composting. Composting the vegetable component of food waste can significantly reduce the proportion of waste falling into landfills and utilize the food waste from the hotel and restaurant industry. Additional enrichment of the compost mixture of food waste with the «Baikal EM» microbiological additive accelerates the maturation process and enhances the efficiency of the finished compost. Such compost does not contain viable weed seeds or pathogenic microflora and can be used as a fertilizer. In contrast to the control, a sufficient level of germination index is observed for the studied samples and they are not phytotoxic. The finished compost can be used as a fertilizer in agriculture for growing crops. The results obtained indicate that the index of germination of radish seeds increases along with the duration of fermentation of the composted mixture. Communities of microorganisms contained in the «Baikal EM» additive accelerate the natural process of composting, taking an active part in the destruction of the components of the vegetable mixture. The pH value of the finished compost, both under thermophilic and mesophilic conditions, is close to neutral indicators. High values of CO2 emissions from reactors were recorded in the second week under thermophilic and for 3 weeks under mesophilic conditions. The finished compost that fermented under thermophilic and mesophilic conditions can be used as fertilizer, but considering that additional energy is required to create thermophilic conditions, it is advisable to compost the food waste mixture with the addition of the microbiological additive «Baikal EM» under mesophilic conditions.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Promising Way to Dispose of Fatty Waste by Hydrolysis and Study of the Conditions for Immobilization of Rhizopus Japonicus Lipase on Carriers
    Autorzy:
    Skliar, Viktoriia
    Krusir, Galina
    Shunko, Hanna
    Zakharchuk, Valentyna
    Malovanyy, Myroslav
    Tematy:
    lipase
    enzyme
    immobilization technology
    waste
    waste sorbent
    straw
    ecological biotechnology
    hydrogenation
    vegetable oils
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Powiązania:
    https://bibliotekanauki.pl/articles/125061.pdf  Link otwiera się w nowym oknie
    Opis:
    The hydrogenation process in oil and fat production is accompanied by the formation of a large amount of waste, the majority of which includes spent catalysts and spent sorbents. The bioconversion of lipids through the use of immobilized enzyme preparations expands the possibilities and is one of the most powerful resource potentials of environmental biotechnology. The adsorption methods are most effective, which is due to the ease of the binding process, the low cost of the carrier and the absence of toxic substances. Immobilization of adsorption provides a large surface area, which is important for the lipolytic enzymes performing catalysis at the interface. In most cases, adsorption slightly reduces the activity of lipases and, which is extremely important, does not affect their specificity. It was shown that the use of activated carbon with a grain size of 2.0–2.8 as a carrier for immobilization of lipase, leads to maximum preservation of the initial lipolytic activity. The weight ratio of carrier/ enzyme, optimal in terms of preservation of lipolytic activity, was 1 g of biopolymer carrier per 500 mg of lipase (1: 0.5) with preservation of 36.33% of the initial activity of the native enzyme. From the obtained experimental data, it follows that the rational conditions for the immobilization of Rhizopus japonicus is GM 1.5, temperature 25°С, duration of immobilization 15 minutes, the size of particles of activated carbon as a matrix is 2.0–2.8 mm. The lipolytic activity of the enzyme immobilized under these conditions is preserved by more than 30% compared with the native one, which is a high indicator of the preservation of activity.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Creative engineering – introducing the progress of science to forestry
    Inżynieria jako twórcza metoda wdrażania postępu nauki w leśnictwie
    Autorzy:
    Wodzicki, Tomasz J.
    Wydawca:
    Instytut Badawczy Leśnictwa (Forest Research Institute), Sękocin Stary, Poland
    Cytata wydawnicza:
    Wodzicki, T. J. (2019). Creative engineering – introducing the progress of science to forestry, Forest Research Papers, 80(4), 263-268. doi: https://doi.org/10.2478/frp-2019-0026
    Opis:
    Implementing creative engineering, or in other words the progress of science, in forestry practices, requires integration of knowledge from its various branches concerning the impact of human activity on the Earth's ecosystem. In fact, various aspects of development in the forest services are already associated with ecological engineering which practically includes biology, economy, sociology, as well as technical and mechanical construction. Special attention was given to modeling as the most productive method of promoting progress in forest management. In the case of biological engineering in forest ecology for example, various possibilities of applying genetic engineering as a potential future method for increasing productivity as well as the preservation of genetic diversity and protection of the environment are discussed in more detail. Literature recommendations concerning engineering in forestry accessible to the students of Extramural Doctorate Studies at the Forest Research Institute in Sękocin are also enclosed.
    Dostawca treści:
    Repozytorium Centrum Otwartej Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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