Stabilization and dispersion of natural colorants in aqueous solutions
Innovative formulation strategies combining natural colorants with polyphenols and hydrocolloids enhance dispersion, color stability, and resistance to degradation in aqueous solutions. This approach is scalable, minimizes sensory impact, and is tailored for food applications.
Overview
This advanced formulation technique enhances the stability and dispersion of natural colorants in aqueous solutions. By integrating polyphenols and food-grade hydrocolloids as co-pigments and carrier matrices, the solution improves color homogeneity and reduces degradation. This innovative approach is tailored for food applications and is designed to maintain minimal sensory impact while offering scalable encapsulation and drying techniques.
Technical specifications
Key features:
- Utilizes polysaccharide- and protein-based matrices for colorant stabilization
- Optimization of hydrocolloid concentration and pH control tailored for food applications
- Reduces aggregation, sedimentation, and color loss during processing and storage
- Scalable encapsulation techniques include electrospray, spray-drying, and freeze-drying
- Employs polyphenols as co-pigments to modulate color profiles based on pH
Technology readiness level
This technology is at TRL 3, with formulation screening, rheological characterization, and pilot-scale validation planned to assess robustness, reproducibility, and compatibility with industrial applications.
About International Iberian Nanotechnology Laboratory
The International Iberian Nanotechnology Laboratory is an intergovernmental research organization in Braga, Portugal, bringing together multinational scientists and engineers to advance nanoscale innovation and translation. Industry partners access state-of-the-art cleanrooms, micro- and nanofabrication toolsets, and high-resolution electron microscopy via shared-use facilities staffed by expert technologists. Liaison teams structure sponsored R&D, rapid prototyping, and fee-for-service engagements, and the location near the Northern Portugal–Galicia manufacturing corridors enables frequent on-site collaboration. Research is supported by competitive European and national funding alongside direct industry contracts, with a dedicated technology transfer office managing IP and licensing to speed commercialization.
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