Keratinases as Versatile Enzymatic Tools for Sustainable Development.

Area of Science:

• Biotechnology
• Environmental Science
• Biochemistry

Background:

• The food industry, especially poultry production, generates substantial waste, including keratin-rich feathers.
• Poultry feather waste (3.2 million tonnes in EU 2020) presents environmental and health risks if not managed.
• Keratin's resistance to conventional enzymes necessitates innovative waste management strategies.

Purpose of the Study:

• To review novel methods for managing poultry feather waste.
• To explore the potential of keratinolytic enzymes and microorganisms in waste valorization.
• To identify value-added products derivable from keratin waste.

Main Methods:

• Literature review of studies on keratinolytic enzymes and microorganisms.
• Analysis of waste management techniques for poultry by-products.
• Identification of potential applications for derived keratin hydrolysates.

Main Results:

• Keratinolytic enzymes and specific microorganisms can effectively break down keratin.
• Potential value-added products include bioactive peptides, vitamins, and biomaterials.
• These methods offer a sustainable alternative to conventional waste disposal.

Conclusions:

• Enzymatic and microbial degradation of poultry feather waste is a promising approach.
• Waste valorization can mitigate environmental impact and create economic value.
• Further research can optimize these processes for industrial application.