CEN/WS BIOMAC
Ultrasound-assisted production of lignin nanoparticles

This CEN Workshop Agreement (CWA) provides a set of requirements and guidelines for producing LNPs using an ultrasound-assisted process. It outlines the methodology for producing lignin nanoparticles with controlled particle size, using environmentally sustainable practices based on ultrasonication and using only water as a liquid medium. The method applies to lignin sourced from different types of biomass, such as hardwood, softwood, and non-wood biomass, processed through a custom-designed ultrasound-assisted pilot line. The CWA provides: • Guidelines for setting up and operating the ultrasonication equipment to ensure consistency and repeatability of LNPs production. • The technical parameters necessary for the ultrasonication treatment of lignin to acquire LNPs with specific properties such as particle size and morphological and structural characteristics. • Quality control measurements and testing protocols to assess the lignin nanoparticles' physicochemical properties, ensuring they meet specifications suitable for various industrial applications.

National mirror committee of CEN/WS BIOMAC