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( Tetiana S Ivanova ),( Nina A Bisko ),( Tetiana A Krupodorova ),( Victor Yu Barshteyn ) 한국미생물생명공학회(구 한국산업미생물학회) 2014 한국미생물·생명공학회지 Vol.42 No.1
A new substrate, breadcrumbs, was investigated for biomass accumulation, the pH of the cultural broth, the formation of primary metabolites such as the proteins and endopolysaccharides of Schizophyllum commune 1768 and Trametes versicolor 353, as well as its bioconversion efficiency. The results showed that S. commune gives more mycelial mass (23.96 ± 0.8 g/l) and in a shorter period (4 days) than T. versicolor (15.76 ± 0.5 g/l in 5 days). The pH values changed from the initial 6.1 to 3.6 in S. commune cultural broth and to 4.4 in T. versicolor cultural broth. Maximal endopolysaccharide content in the mycelia of S. commune and T. versicolor were 7.13% and 6.42%, correspondingly. Crude protein content in S. commune mycelium was 18.83 % on the 4th day of cultivation, and 20.03%, in the mycelium of T. versicolor, on the 6th day of cultivation. Kinetic parameters for the quantitative estimation of cultivation efficiency were calculated for biomass, endopolysaccharide, and crude protein concentrations.
Ivanova, Tetiana S.,Bisko, Nina A.,Krupodorova, Tetiana A.,Barshteyn, Victor Yu. The Korean Society for Microbiology and Biotechnol 2014 한국미생물·생명공학회지 Vol.42 No.1
A new substrate, breadcrumbs, was investigated for biomass accumulation, the pH of the cultural broth, the formation of primary metabolites such as the proteins and endopolysaccharides of Schizophyllum commune 1768 and Trametes versicolor 353, as well as its bioconversion efficiency. The results showed that S. commune gives more mycelial mass ($23.96{\pm}0.8g/l$) and in a shorter period (4 days) than T. versicolor ($15.76{\pm}0.5g/l$ in 5 days). The pH values changed from the initial 6.1 to 3.6 in S. commune cultural broth and to 4.4 in T. versicolor cultural broth. Maximal endopolysaccharide content in the mycelia of S. commune and T. versicolor were 7.13% and 6.42%, correspondingly. Crude protein content in S. commune mycelium was 18.83 % on the 4th day of cultivation, and 20.03%, in the mycelium of T. versicolor, on the 6th day of cultivation. Kinetic parameters for the quantitative estimation of cultivation efficiency were calculated for biomass, endopolysaccharide, and crude protein concentrations.
Peculiarities of the E-commerce Development in the Conditions of Digital Economy
Ivanova, Nataliia,Kublitska, Olena,Krupitsa, Iryna,Dybchuk, Luidmyla,Koval, Kristina,Hanieieva, Tetiana International Journal of Computer ScienceNetwork S 2021 International journal of computer science and netw Vol.21 No.12
The article is devoted to current issues of the development of e-commerce, which is gaining more importance in the conditions of widespread quarantine restrictions. As a result, of the research the importance of digitalization as a driver of economic development is substantiated and the main business models of e-commerce and their modifications are examined. The peculiarities of e-commerce in the context of digital economy were analyzed and their current state was established. Identified the main trends in the development of e-commerce at the current stage, which allowed to identify problem areas that require further study and evaluation. Presented the results of the market research of decorative cosmetics, based on which the summarized set of problems that affect the online sales in this segment of the market.