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KMID : 1024420100140010007
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Food Engineering Progress
2010 Volume.14 No. 1 p.7 ~ p.13
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Isolation and Characterization of Thermophilic Microorganism Producing Starch-hydrolyze Enzyme
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Choi Won-Seok
Bai Dong-Hoon
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Abstract
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A thermophilic microorganism, which is able to hydrolyze starch, was isolated from soil and compost in Korea. It was Gram-positive, rod-shaped, catalase positive, nonmotile, glucose and mannitol fermentative, xylose oxidative, and spore forming microorganism. It also has an ability to hydrolyze casein and gelatin. The color of colony was yellowish white. The sequence of 16S rDNA of strain 2719 showed 99.5% sequence homology with the sequence of 16S rDNA of Bacillus thermoglucosidasius. On the basis of biochemical and physiological properties and phylogenetic analysis, the isolated strain was named as Bacillus thermoglucosidasius 2719.
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KEYWORD
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Bacillus thermoglucosidasius, Thermophile, Amylase
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