Blaž Petek (Author), Maja Vodušek (Author), Tomaž Accetto (Author), Maša Zorec (Author), Polona Zalar (Author), Jernej Oberčkal (Author), Romana Marinšek-Logar (Author)

Abstract

The huge amounts of keratin-rich waste generated daily by various industries, slaughterhouses, and processing plants need to be properly managed. Most keratin degradation-related research focuses on keratin from bird feathers, but a vast minority focuses on keratin from sheep wool, which also presents a serious environmental problem. In this article, we describe the isolation, identification, and characterization of new keratinolytic microorganisms capable of sheep wool degradation from sheep wool and soil enriched with wool keratin. We isolated four bacterial species from the genus Bacillus (B. subtilis, B. altitudinis, B. mycoides, and B. wiedmannii), one streptomycete species Streptomyces coelicofavus identified by whole genome sequencing, and a fungal species Aphanoascus reticulisporus. In some of the isolated microorganisms, we detected keratinolytic activity for the first time, and for most of them, the ability to degrade sheep wool has not been previously demonstrated. The keratinases of the new isolates are active in a wide range of temperatures (25–85 °C) and pH (6.0–10.0), so all isolates show great potential for further biotechnological use in industry and in various environmental and agricultural applications to reduce and recycle keratin-rich wastes such as sheep wool and waste woollen textiles.

Keywords

mikrobiologija;keratinolitični mikroorganizmi;odpadna ovčja volna;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL BF - Biotechnical Faculty
UDC: 579
COBISS: 171178243 Link will open in a new window
ISSN: 1611-8227
Views: 322
Downloads: 31
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Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: mikrobiologija;keratinolitični mikroorganizmi;odpadna ovčja volna;
Type (COBISS): Article
Pages: str. 360-372
Issue: ǂVol. ǂ26
Chronology: 2024
DOI: 10.1007/s10163-023-01830-5
ID: 22373149