During the project, with extensive cellular and molecular biological R&D, Alkion established a complete bioproduction workflow for Quillaja biomass: in-vitro culture, scale-up in large temporary-immersion bioreactors, elicitation, extraction and purification. A new generation of 40-L modular “Alkaburst 2.0” bioreactors was designed, engineered and validated, offering reproducible biomass growth, reduced contamination risks, and seamless scalability through parallel operation.
The company also advanced its extraction and purification processes, enabling the production of highly purified QS-21 and several related saponin fractions. Analytical comparisons confirmed equivalence with pharmaceutical-grade reference materials. These advances were consolidated into a full process book and used to define the future GMP roadmap, supported by expert audits.
In parallel, Alkion progressed on automated micropropagation through AI-assisted robotic cutting (in partnership with an external robotics company), and engaged in multiple pre-clinical collaborations with NGOs, academic groups, CDMOs, and biotech companies. These collaborations now evaluate Alkion’s QS-21 and associated adjuvant systems in various human and veterinary vaccine programmes.