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KMID : 1025520000420040511
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Journal of Animal Science and Technology
2000 Volume.42 No. 4 p.511 ~ p.520
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A Studies on Cellulolytic Enzyme Activity in Agricultural By - products by the Bacillus circulans SJ-102
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Abstract
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A cellulose-producing microbe isolated from soil was identified as a strain of Bacillus circulans SJ-102. Optimum incubation condition for the highest enzyme production was glucose 4.8%, skim milk 1.8%, ZnSO₄ 0.02% and pH 6.3 at 35℃ for 72hrs. The optimum physical condition for the highest crude enzyme production was pH 5.5 and 55 ℃ at 30min. of treatment, and the highest crude enzyme activity was obtained at 60 min, of treatment in rice straw. These results indicate that Bacillus circulars SJ-102 can be used for the microbial study on roughage digestion in ruminant animals.
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