Data for New cold-adapted bacteria for efficient hydrolysis of feather waste at low temperature paper
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A novel cold-adapted bacteria <em>Arthrobacter oryzae</em> BIM B-1663 isolated from Antarctic green snow showed keratinase activity and efficient poultry feather degradation. <em>A. oryzae</em> strain degraded more than 80% of chicken feathers within 7 days of cultivation at 25°C. The optimal keratinase activity for <em>A. oryzae</em> BIM B-1663 was observed at 50°C, both for α-keratin (44.86 U/mL) and for β-keratin (94 mU/mL). The obtained results from sulfite and thiol groups tests and Fourier transform infrared spectroscopy (FTIR) showed that <em>A. oryzae</em> strain has a different keratin degradation mechanism than the reference strain <em>Bacillus</em> <em>licheniformis</em> CCM 2145<sup>T</sup>. FTIR fingerprinting can be used for monitoring of feather hydrolysis as it showed distinct chemical differences in feather meal hydrolysates, retentate and permeate from <em>A. oryzae</em> and <em>B.</em> <em>licheniformis</em> strains.
