Soil fungus found in wool compost devours tough feathers fast
Isembart C, Bruchon Z, Yao JM, Zimmermann B, Bolaño Losada C
Soil Health
That bag of wool pellets you scatter as fertilizer isn't just feeding your soil, it's home to a fungus that could turn feather and wool waste piling up worldwide into useful compost instead of landfill filler.
Feathers and wool are tough to break down because they're made of keratin, a stubborn protein held together by strong chemical bonds. Researchers digging through garden soil mixed with wool pellets found a fungus, Simplicillium aogashimaense, that no one knew could eat keratin at all. Given nearly two weeks in a lab dish with ground-up feathers, it chewed through 80% of the material, working in stages: first attacking the exposed surface, then digesting what it broke loose, then settling into a steady state.
Key Findings
Simplicillium aogashimaense achieved up to 80% feather meal mass reduction over 12 days of cultivation
This is the first documented evidence of keratinolytic (keratin-degrading) activity in this fungal species
Degradation occurred in three distinct phases: rapid enzymatic breakdown (days 1-3), metabolic assimilation (days 4-6), and stabilization (days 7-12)
chevron_right Technical Summary
Scientists found a soil fungus that can break down 80% of tough feather waste in under two weeks, offering a greener way to recycle keratin-rich materials like wool and feathers instead of dumping them in landfills.
Abstract Preview
Original paper
First evidence of keratinolytic activity in Simplicillium aogashimaense isolated from wool-pellet-amended soil.
Keratin-rich waste such as wool and feather wastes are generated in large quantities worldwide and remain difficult to valorize due to the structural resilience of keratin, that is reinforced by di...
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