Billions of tons of keratinous waste in the form of feathers, antlers, bristles, claws, hair, hoofs,
horns, and wool are generated by different industries and their demolition causes …

The global requirement for food enhances the synthetic fertilizers utilization, mostly for the
nitrogen (N) supply in the soil, the most limiting nutrient for plant growth. The key principle of …

Livestock keratin waste is a rich source of protein. However, the unique structure of livestock
keratin waste makes its valorization a great challenge. This paper reviews the main methods …

The livestock production and subsequent processing of meat results in huge quantities of
solid waste such as viscera, bones, skin and keratin-rich materials, including feathers, hair …

Background With the growing concern for the environment, there are trends that bio-
utilization of keratinous waste by keratinases could ease the heavy burden of keratinous …

The study aims to promote plant growth, soil fertility and soil microbiota using a combination
of Bacillus pumilus AR57 and chicken feather protein hydrolysate (CFPH). The bacterium …

Keratinases are proteolytic enzymes with a particular ability to cleave peptide bonds in
keratin, and in other proteins. Due to their broad-spectrum of activity, keratinases are …

Keratin-containing wastes become pollution to the environment if they are not treated
properly. On the other hand, these wastes can be converted into value-added products …

Purpose This study assessed novel keratinolytic bacteria for feather valorization to yield
feather hydrolysates (FHs) to cultivate vegetables. Methods Bacterial degradation of feather …

The present study reports the application of feather hydrolysates (FHs) obtained from the
hydrolysis of chicken feathers by Bacillus safensis LAU 13 (KJ461434) and Aquamicrobium …