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Thermostable and Alkalistable Xylanases Produced by the Thermophilic Bacterium Anoxybacillus flavithermus TWXYL3
Joint Authors
Magnuson, Timothy S.
Ellis, Joshua T.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-05
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
With the rising cost and finite supply of fossil energy, there is an increasing economic incentive for the development of clean, efficient, and renewable domestic energy.
The activities of microorganisms offer the potential conversion of lignocellulosic materials into fermentable sugars, usable for downstream fermentation processes.
Strain TWXYL3, a thermophilic facultative anaerobe, was discovered in the Alvord Basin hydrothermal system in Oregon, USA.
Phylogenetic analysis of strain TWXYL3 showed it to be 99% similar to the 16S rRNA gene of Anoxybacillus flavithermus WL (FJ950739).
A.
flavithermus TWXYL3 was shown to secrete a large multisubunit thermostable xylanase complex into the growth medium.
Xylanase induction was achieved by resuspending the isolate in a selective xylan-containing medium.
Extracellular xylanase activity showed a temperature optimum of 65°C and retained thermostability up to 85°C.
Extracellular xylanase activity showed a bimodal pH optimum, with maxima at pH 6 and pH 8.
Electrophoretic analysis of the extracellular xylanase shows 5 distinct proteins with xylanase activity.
Strain TWXYL3 is the first xylanolytic isolate obtained from the Alvord Basin hydrothermal system and represents a new model system for development of processes where lignocellulosics are converted to biofuel precursors.
American Psychological Association (APA)
Ellis, Joshua T.& Magnuson, Timothy S.. 2012. Thermostable and Alkalistable Xylanases Produced by the Thermophilic Bacterium Anoxybacillus flavithermus TWXYL3. ISRN Microbiology،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-477993
Modern Language Association (MLA)
Ellis, Joshua T.& Magnuson, Timothy S.. Thermostable and Alkalistable Xylanases Produced by the Thermophilic Bacterium Anoxybacillus flavithermus TWXYL3. ISRN Microbiology No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-477993
American Medical Association (AMA)
Ellis, Joshua T.& Magnuson, Timothy S.. Thermostable and Alkalistable Xylanases Produced by the Thermophilic Bacterium Anoxybacillus flavithermus TWXYL3. ISRN Microbiology. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-477993
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477993