Thermostable cyclodextrin glycosyl transferase, the preparation and use thereof, and a micro-organism for producing it

Previously unknown cyclodextrin glycosyl transferases (CGTases) can be prepared by the anaerobic culture of thermoanaerobacter or thermoanaerobium strains. They are more thermostable than known cgTases and have a temperature optimum at approx. 95 degree C. The previously unknown CGTases can be used...

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Bibliographische Detailangaben
Hauptverfasser:	TRACKMAN, PHILIP C, STARNES, ROBERT L, KATKOCIN, DENNIS M
Format:	Patent
Sprache:	dan ; eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	Previously unknown cyclodextrin glycosyl transferases (CGTases) can be prepared by the anaerobic culture of thermoanaerobacter or thermoanaerobium strains. They are more thermostable than known cgTases and have a temperature optimum at approx. 95 degree C. The previously unknown CGTases can be used for liquefying starch at pH 4.5 and temperatures greater than 100 degree C in the preparation of glucose or ethanol. They can furthermore be used for converting liquefied starch into cyclodextrin at a temperature of 80-90 degree C.