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Some 150 cellulase producing strains were isolated from feces of herbivorous animal, soil of farm. Among them, the strain B-7, G-56 were found to be highly active in the degradation of Carboxy Methyl Cellulose. The propeties of their cellulase which was obtained from wheat bran culture were investigated. 1) As a result of observation by microscope, G-56 strain was decided Penicillum and B-7 strain was Aspergillus. 2) Optimal reacting condtion of these cellulase were G56 strain ; PH 3.0, temperature 50℃ B-7 strain;PH3.5, temperature 40℃ 3) As a result of investigation on their their thermal stability, G -56 strain’s cellulase was lost harf part of its activity be heat treatment at 60℃~60min, 70℃-6 min, and B-7 strain’s cellulase was lost harf part of its activity by heat treatment at 60℃-30 min. 70℃ C-5 min. 4) B-7 strain’s cellulase was very stable in the range of PH3.5~6.0, and G-56 strains’ was stable in PH 3.0~5.0.
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