Sebastian Bujak

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The aim of the research was to check the possibility of the semicontinuous cultivation of two Fusarium sp. strains producing cellulolytic enzymes. The cultures were grown in 5 1 fermentor on the mineral medium with addition of 1% cellulose cotton. In these cultures lasting 9 to 16 days the total activity was about 13 mg of reducing sugar/ml culture(More)
Beech sawdust was subjected to autohydrolysis (200 degrees C) and acid hydrolysis in the presence of HCl and AlCl3. HCl-catalyzed hydrolysis was favourable method to hydrolysis beech sawdust hemicellulose. The crude and pretreated hydrolysates were tested as substrates for ethanol production by Fusarium sp. 27. Reducing sugars were fermented to ethanol by(More)
The effect of different temperatures and pH values on the hydrolysis of xylan by culture fluids of five strains of the lower fungi was determined. Xylan in such natural substrates as straw and corn-cobs was also subjected to enzymatic hydrolysis. The culture filtrate of the most active strain contained, besides xylanolytic enzymes, also cellulolytic,(More)
Renal angiography frequently yields indeterminate results (particularly in aneurysms), that in coronaries were found to be plaque rupture sites. In this setting, use of intravascular ultrasound (IVUS) allows unique insights into actual lesion anatomy. We present three cases with striking in-vivo IVUS visualisation of renal artery atherosclerotic plaque(More)
Introduction Transcatheter implantation of balloon expandable valves in high-risk patients with degenerated tricuspid bioprostheses has been reported since 2010 [1, 2]. Although there have been cases where the SAPIEN valve was implanted in the tricuspid position without rapid pacing [3, 4], invasive rapid ventricular pacing is usually applied during valve(More)