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Application of partially purified protease from B. subtilis. (A) Dehairing of cow skin by protease. Aa, Ab, Ac were treated with distilled water (control), partially purified protease and chemicals (Lime sulfide), respectively. (B) Decomposition of gelatinous compound from X-ray film. Ba and Bb were treated with distilled water (control) and partially purified protease, respectively.
