Generation bacterium of ring dextrin glucosyl transferase

The invention discloses a manufactured bacterium of annular dextrin glucosyltransferase, which is characterized by the following: obtaining the separated strain LZ-10 as Bacillus sp with preservation number at CGMCC No. 2096; displaying the fittest reacting pH value of annular dextrin glucosyltransf...

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Bibliographic Details
Main Authors HUANG ZUNXI, MENG YANFEN, XU BO, TANG XIANGHUA
Format Patent
LanguageChinese
English
Published 27.02.2008
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PROCESSES USING MICROORGANISMS
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Summary:The invention discloses a manufactured bacterium of annular dextrin glucosyltransferase, which is characterized by the following: obtaining the separated strain LZ-10 as Bacillus sp with preservation number at CGMCC No. 2096; displaying the fittest reacting pH value of annular dextrin glucosyltransferase at 9. 0 and the fittest reacting temperature at 65 deg. c with good thermal stability; insulating at 60-65 deg. c over 30min to keep residual enzymatic activity more than 95%; insulating with pH value at 8. 5-9. 5 for 30 min to keep the residual enzymatic activity more than 90%. The enzyme is compatible with thermostability and alkaliresistant, which is fit for enzymatically industrial manufacturing course of annular dextrin.
Bibliography:Application Number: CN2007166032