Enormous masses of keratinous wastes are annually accumulated in the environment as
byproducts of poultry processing and agricultural wastes. Keratin is a recalcitrant fibrous …

Keratin is regarded as the main component of feathers and is difficult to be degraded by
conventional proteases, leading to substantial abandonment. Keratinase is the only enzyme …

Keratinase are proteolytic enzymes which have gained much attention to convert keratinous
wastes that cause huge environmental pollution problems. Ten microbial isolates were …

In recent decades, environmental concerns have directed several policies, investments, and
production processes. The search for sustainable and eco-friendly strategies is constantly …

Feather waste is the highest protein-containing resource in nature and is poorly reused.
Bioconversion is widely accepted as a low-cost and environmentally benign process, but …

Background The hydrolysis of keratin wastes by microorganisms is considered a
biotechnological alternative for recycling and valorization through keratinolytic …

Background Hair is composed mainly of keratin protein and a small amount of lipid. Protein
hydrolysates, in particular those with low molecular weight distribution have been known to …

Keratinolytic proteases are microbial enzymes that hydrolyze keratins, recalcitrant proteins
found in the epidermis and epidermal appendages of vertebrates. Keratin-rich materials are …

Keratinases are unique among proteolytic enzymes for their ability to degrade recalcitrant
insoluble proteins, and they are of critical importance in keratin waste management. Over …

Keratinase, a protease was produced from keratinolytic bacterium, Bacillus
paralicheniformis MKU3, using poultry feather as substrate. Statistical analyses were carried …