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Title: Microbial Keratinolytic Enzymes for Biodegradation of Poultry Waste and Hide Depilation
Authors: Patil, Nayana
Chandak, Payal
Keywords: Bacillus licheniformis;Bioconversion;Dehairing;Feather feed;Microbial keratinase
Issue Date: Jul-2020
Publisher: NISCAIR-CSIR, India
Abstract: The ability of Bacillus licheniformis (MCC2830) to utilize different keratin substrates (soluble keratin, hair, feather, nail and scales) was tested along with dehairing capacity. The keratinases showed high substrate specificity for soluble keratin, fish scales and chicken feathers and nails, but low specificity for human hair. The enzyme is heat stable (37–45°C) and active around wide pH range (2–9). The bacteria completely degraded whole chicken feathers after 7 days at 37 ± 2°C, and also completely dehaired goat skin within 5 hrs, without any damage to the skin. Therefore, the keratinase of Bacillus licheniformis strain could be used to develop an environmental friendly method for bioconversion of waste feather into feather feed and for dehairing process in leather industry.
Page(s): 577-581
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.79(07) [July 2020]

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