Nettles offer enormous potential as a sustainable source of protein, but their industrial use has not yet been sufficiently researched .However, their industrial applications have not yet been sufficiently researched. Protein extraction , in particular, poses a technological challenge , as there are no established extraction methods and due to the high levels of polyphenols and antinutritional substances.
Protein extraction in particular poses a technological challenge, as there are no established extraction methods and due to the high content of polyphenols and antinutritional substances. This research project is developing a scalable, sustainable process for extracting protein from nettles.The yield and quality of the nettle protein is to be optimized by integrating modern separation and stabilization technologies, such as pretreatment with pulsed electric fields (PEF) and innovative extraction and separation techniques.
Particular attention is being paid to the complete utilization of the plant. By-products such as press cake, separation residues, and fibers are integrated into closed-loop systems to ensure maximum resource utilization.
Linking to existing research
The project builds on existing findings regarding protein extraction from grass derived from current research within the ZERN consortium, particularly the Initialprojekt zur „Grünlandnutzung und Eiweißgewinnung aus Gras“, which pursues similar objectives in the field of protein extraction. Methods, equipment, and process steps from this research are being adapted and further developed to specifically tailor them to the unique characteristics of the stinging nettle plant. Compared to grass, which is grown on arable land and allows for multiple harvests per year, stinging nettle is particularly well-suited for cultivation in hydroponic systems. This versatility offers farmers in Lower Saxony additional alternatives for various business models, as stinging nettle can be grown efficiently not only in open fields but also in controlled indoor systems.
Project lead:
Prof. Dr. Kemal Aganovic (DIL)