Process for the intensification of microbiological conversions of steroids using cyclodextrin additives

Microbiological conversions of cyclodextrins are intensified by adding to the reaction mixture 0.2 to 3 moles of alpha -, beta - or gamma -cyclodextrin or an optical mixture thereof pro mole of the steroid substrate, before, at the beginning or during the conversion. The cyclodextrin if desired, can...

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Bibliographische Detailangaben
Hauptverfasser:	HANTOS, GABOR, TRINN, MARIA, BALAZS NEE CZURDA, MARTA, VIDA, ZSUZSA, BARTHO, ISTVAN, STADLER NEE SZOEKE, AGNES, HABON, ILONA, UDVARDY NAGY NEE CSEREY PECHANY, EVA, SZEJTLI, JOZSEF
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING SPIRITS VINEGAR WINE
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Zusammenfassung:	Microbiological conversions of cyclodextrins are intensified by adding to the reaction mixture 0.2 to 3 moles of alpha -, beta - or gamma -cyclodextrin or an optical mixture thereof pro mole of the steroid substrate, before, at the beginning or during the conversion. The cyclodextrin if desired, can be removed after the reaction. In this way the reaction velocity can be increased, the reaction time is reduced, the substrate concentration in the solution, i.e. its solubility is increased or the so called product inhibition may be avoided. In certain cases of more alternatives the desired reaction can be catalyzed and in this manner the selectivity is increased.