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Bioresources and Bioprocessing
Fig. 2 | Bioresources and Bioprocessing

Fig. 2

From: Characterization and overexpression of a novel keratinase from Bacillus polyfermenticus B4 in recombinant Bacillus subtilis

Fig. 2

a Effect of temperature on KerP activity. b Temperature stability of KerP. Enzyme activity was preserved at various temperatures between 0 and 60 min before assaying enzyme activity. 30 °C (filled circle), 40 °C (open circle), 50 °C (filled inverted triangle), 60 °C (open triangle), and 70 °C (filled square) for 60 min. The enzyme activity was assayed with feather powders as the substrate at pH 9.0 for 1 h

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