Structurawhite: porous plant-based tio₂ replacement
StructuraWhite™ offers a bio-inspired structural whitening solution to replace titanium dioxide in food and beverage applications. Utilizing plant-derived biopolymers, it achieves whiteness through light-scattering porous microparticles, providing a vegan, kosher, and halal-friendly alternative with minimal taste impact.
Overview
StructuraWhite™ represents a cutting-edge platform for replacing titanium dioxide (TiO₂) in food and beverage applications. This innovative solution leverages bio-inspired structural whitening by using porous food-grade biopolymer microparticles to achieve desired whiteness and opacity. These microparticles are derived from plant-based proteins and other natural ingredients, making it suitable for vegan, kosher, and halal products. StructuraWhite™ offers a clean-label alternative to traditional mineral whiteners, ensuring minimal impact on taste and texture.
Technical specifications
The StructuraWhite™ platform uses a unique method involving high-shear foaming and spray drying to produce microparticles with controlled internal air voids, maximizing light scattering. Key components include zein, pea protein, cellulose, and pectin, with optional enzymatic crosslinking to enhance stability. The microparticles are designed to range from 5–30 µm in size, offering high opacity for coatings and mass-whitening applications while maintaining the product's flavor and pH balance.
Technology readiness level
Currently, StructuraWhite™ is at Technology Readiness Level 3, indicating that the technology is in the experimental proof of concept stage. The development program includes optimization and validation phases, focusing on particle formulation, performance in food systems, and pilot-scale production, leading up to commercialization.
About University of Padova
Founded in 1222, the University of Padova is a comprehensive public research university with broad disciplinary depth and a strong international profile. Industry engages through co-located labs and shared core facilities offering testing and contract services, plus internship and thesis pathways that place students in company settings. The university is integrated with a major hospital system for clinical research and translation and collaborates with regional technology parks and the Veneto network of industrial districts. Research is supported by competitive European and national programs, including Horizon Europe and the European Research Council. A dedicated technology transfer office streamlines sponsored research, IP, licensing, and startup support for corporate partners.
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