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Transport Biofuels and Their Perspectives.
Kaštánek, František ; Maléterová, Ywetta ; Hanika, Jiří ; Kaštánek, P. ; Šolcová, Olga
There are discussed already applied procedures or procedures verified in pilot scale and only in laboratory scale. Essentially, transport biofuel technologies can be considered: Hydrolysis and fermentation of lignocelluloses to lower alcohols, transesterification of oils, production of liquid biomass pyrolysis product, so called bio-oil as the main product in addition to bio-coal and pyrolysis gases, gasification to produce synthesis gas followed by catalytic production of gasoline and naphtha hydrocarbons\n(Fischer-Tropsch synthesis), transformation of a system of chemical compounds obtained from bio-oil into hydrocarbons by catalytic hydro deoxygenation and /or hydrocarbons obtained directly from the biomass by catalytic hydro deoxygenation.
Plný tet: SKMBT_22318102213430 -  PDF
Plný text: content.csg - PDF
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Kinetics of Keratin Acidic Hydrolysis in Batch Autoclave.
Hanika, Jiří ; Kaštánek, P. ; Rousková, Milena ; Šabata, Stanislav ; Šolcová, Olga
The contribution brings novel data on the non-traditional process presented during previous ICCT 2015 conference1. According to the patent application2 the hydrolysis of waste chicken feathers was performed in a reaction mixture containing water and a soluble acid catalyst with the pKa value lower than 4, in a stirred batch reactor for 0.5 to 10 hours, in the temperature range from 90 to 130°C and at the pertinent vapour pressure of reaction mixture. Kinetics of preparing a mixture of proteins and amino acids by hydrolysis of a waste material containing chicken feathers was investigated in this study.\n
Plný tet: SKMBT_22317120815250 - PDF
Plný text: content.csg - PDF
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Fatty Acids Profile Analysis in Fresh Suspension of Japonochytrium Sp.
Rousková, Milena ; Maléterová, Ywetta ; Hůrková, K. ; Kaštánek, P. ; Hanika, Jiří ; Šolcová, Olga
The study is focused on concentration of a lipid content and determination of the extractable part oriented on included fatty acids in separated phases of centrifuged wet biomass. The main attention was focused on the DHA concentration from the upper lipid layer, containing obviously concentrated proportion of fatty acids. Water fungi suspension was submitted to centrifugation with subsequent separation of individual liquid/solid fractions and extracted by two solvent systems. Dichloromethane/methanol 1/1 and 1-hexane/ethanol 2/3 was applied. Both solvent systems afforded comparable fatty acids profiles. Dominant acids C16:0 (in the range of 43-47%) and DHA C22:6n3 (43-47%) were detected. Biomass residue can be applied e. g. as an animal food supplement due to high protein content. Also level of pigments with antioxidant effect, particularly carotenoids, can be dietary significant.
Plný tet: SKMBT_22317120815260 - PDF
Plný text: content.csg - PDF
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