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Updated: Aug 20, 2026

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Preparation of Keratin Hydrolysate from Chicken Feathers and Its Application in Cosmetics
Published on: November 27, 2017
Novel keratinase from Bacillus subtilis S14 exhibiting remarkable dehairing capabilities
Alexandre J Macedo1, Walter O Beys da Silva, Renata Gava
1Centro de Biotecnologia do Estado do Rio Grande do Sul, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Applied and Environmental Microbiology
|January 11, 2005
Abstract:
We report the isolation of a keratinolytic-producing Bacillus subtilis strain and the characterization of the exceptional dehairing properties of its subtilisin-like keratinase. This enzyme can be an alternative to sodium sulfide, the major pollutant from tanneries, and may completely replace it. Its unique nonactivity upon collagen enhances its industrial potential.
