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1

The influence of temperature on solid state culture of Aspergillus niger

100%
Szewczyk K. W.
Biotechnologia
|
1993
|
issue 3
61-69
EN
Models of on solid state are discussed. It was shown that logistic curve equation describes fungi growth also in nonisothermal conditions Culvation of on mixture of and was investigated in the temperature range of 26-40'C. Models were compared with experimental results and energy of activation and deactivation were calculated.
2
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Substrate Inhibition in Lipase-Catalysed Transesterification of Mandelic acid with Vinyl Acetate

51%
Dąbkowska K., Pilarek M., Szewczyk K. W.
Chemical and Process Engineering
|
2012
|
vol. 33
|
issue 4
539-546
EN
Kinetic resolution of (R)- and (S)-mandelic acid by its transesterification with vinyl acetate catalysed by Burholderia cepacia lipase has been studied. The influence of the initial substrate concentration on the kinetics of process has been investigated. A modified ping-pong bi-bi model of enzymatic transesterification of (S)-mandelic acid including substrate inhibition has been developed. The values of kinetic parameters of the model have been estimated. We have shown that the inhibition effect revealed over a certain threshold limit value of the initial concentration of substrate.
3
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The influence of heat and mass transfer on solid state fermentation

44%
Szewczyk K. W.
|
|
vol. 40
|
issue 1
90-92
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