Ultrasonic technology for value added products from feather keratin.

Area of Science:

• Biomaterials Science
• Green Chemistry
• Polymer Science

Background:

• Feather keratin, an abundant livestock industry byproduct, presents an opportunity for sustainable material development.
• Current processing methods for keratin-based biopolymers are often time-consuming and energy-intensive.
• Ultrasonication has not been previously explored for optimizing keratin dissolution.

Purpose of the Study:

• To compare and optimize the dissolution of turkey feather keratin using sonication versus conventional methods.
• To develop a biodegradable polymer from dissolved keratin as a value-added product for applications like packaging.
• To investigate the role of ionic liquids and co-solvents in the sonication-assisted dissolution process.

Main Methods:

• Dissolution of turkey feather keratin using ultrasonication in ionic liquids (ILs) and IL/co-solvent mixtures.
• Comparison of dissolution rates and efficiency against conventional methods.
• Regeneration, analysis, and characterization of the derived keratin polymer.

Main Results:

• Ultrasonic irradiation dramatically accelerated keratin dissolution, reducing time from approximately 2 hours to under 20 minutes.
• The addition of co-solvents effectively reduced the required amount of ionic liquids.
• Characterization confirmed the successful regeneration of a usable keratin-based polymer.

Conclusions:

• Sonication is a highly efficient method for processing feather keratin, significantly outperforming conventional techniques.
• The developed process offers a sustainable route to produce biodegradable polymers from agricultural waste.
• The regenerated keratin material shows potential for reuse in various applications, contributing to a circular economy.