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Volatile Substances Determination in Magnolia x Pruhoniciana Extracts.
Rousková, Milena ; Šabata, Stanislav ; Maléterová, Ywetta ; Hradecký, J. ; Hanika, Jiří ; Kaštánek, František ; Šolcová, Olga
Magnolia pruhoniciana is a unique hybrid originated by the crossing of Japanese M. obovata and American M. tripetala. It has been cultivated and grown since the 1950s in the Průhonice park, part of the Institute of Botany of the CAS. However, biologically active substances contained in intensely fragrant blossoms have not been\nsufficiently described, yet. From that reason the research was focused on extraction of the volatile substances from fresh blossoms using various solvents. Samples of magnolia blossom extracts revealed variously rich profiles of volatile substances, depending on the extraction agent used. To obtain information on volatile substances the analytical method GC/HRMS was employed. Magnolia extracts contained a large number of valuable substances such as alkaloids, coumarins, flavonoids, lignans and neolignans, phenyl-propanoids and terpenes have been identified. Obtained extracts possessed a typical magnolia fragrance, which confirmed that the obtained products could be potentially used for cosmetic applications.
Plný tet: SKMBT_C22019011614380 - PDF Plný text: content.csg - PDF
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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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