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KMID : 0545120110210080818
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Journal of Microbiology and Biotechnology
2011 Volume.21 No. 8 p.818 ~ p.821
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Isolation and Characterization of a Novel Agarase-Producing Pseudoalteromonas spp. Bacterium from the Guts of Spiny Turban Shells
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Oh Young-Hoon
Lee Jin-Won
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Abstract
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An agar-degrading bacterium was isolated from the guts of spiny turban shells. It was identified as a Pseudoalteromonas species and named Pseudoalteromonas sp. JYBCL 1. The viscosity of the inoculated agar medium decreased by more than 60% after 20 h cultivation. The agarase produced by the isolate had optimal activities at 35oC and pH 7. The enzyme had extremely strong resistance to ionic stress compared with other known agarases. Its molecular mass was estimated at about 60 kDa by sodium dodecyl sulfate polyacrylamide gel electrophoresis. The agarase could saccharify Gelidium amansii directly, with an efficiency about half that compared with agar saccharification.
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KEYWORD
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Agarase, Pseudoalteromonas, Isolation, Saccharification, Gelidium amansii
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