ArticleWorld journal of microbiology & biotechnology2025
Sustainable exploitation of high-protein feather waste for green production of cold-adapted and detergent-stable keratinase by Penicillium oxalicum AUMC 15084.
Article in World journal of microbiology & biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Utilization of sugarcane bagasse waste by Aspergillus welwitchiae SVUAw9 for production, purification, and characterization of cold-active xylanase under solid-state fermentation conditions.Microbial cell factories · 2026Article
- Purification, characterization, and dehairing properties of alkaline and thermo-stable keratinase by Penicillium citrinum AUMC 14742.Scientific reports · 2026Article
- Keratinases: microbial sources, mechanisms, and industrial applications in waste valorization.Frontiers in microbiology · 2026Review
- Harnessing Microbial Consortia for Efficient Keratinous Biomass Biotransformation.International journal of molecular sciences · 2025Review
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Authors and funding
5 authors.
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Abstract
Limited research has investigated the ability of psychrophilic and psychro-tolerant microorganisms to produce cold-active keratinases, despite their potential as an efficient alternative for substrate conversion at reduced energy expenditure. A screening of 32 Penicillium and Talaromyces isolates for keratinolytic activity at temperatures of 5, 10, and 15ºC identified a promising P. oxalicum strain as the most potent at 10ºC, yielding 242.39 U/mL. Following six days of incubation at pH 8.0 and 15 °C with 0.2% yeast extract as the nitrogen source, the P. oxalicum strain exhibited keratinase activity of 359.42 U/mL. The keratinase underwent purification with a 4.13-fold increase, utilizing an MP 800 anion exchanger and Sephacryl S 200 , resulting in a specific activity of 684.46 U/mg and a yield of 5.34%. The SDS-PAGE analysis identified a keratinase with a molecular weight of 37.51 kD, exhibiting peak activity at pH 9.0 and 20ºC, with a specific activity of 721.8 U/mg. Mg
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