Fabrication of functional anisotropic food-grade micro-rods with micro-particle inclusions with potential application for enhanced stability of food foams

Campbell, Andrew L.; Stoyanov, Simeon D.; Paunov, Vesselin N.

Abstract

We have fabricated novel, food-grade anisotropic 'lumpy' micro-rods with micro-particle inclusions using an in-shear flow solvent attrition technique. Various micro-particle inclusions have been used in shellac and ethyl cellulose micro-rods which include sporopollenin microcapsules, porous silicas, yeast cells, sodium bicarbonate micro-crystals, metal micro-particles and magnetite nano-particles. Functionalisation of the micro-rods also involved thermal or microwave induced degradation of particles incorporated in the polymeric micro-rods. Using this technique we have produced a range of lumpy and 'ballooned' micro-rods and have characterised their morphologies by using optical and fluorescence microscopy. Our study indicates that the lumpy micro-rods have an increased efficiency as foam stabilisers compared with regular 'smooth' micro-rods without particle inclusions.

Citation

Campbell, A. L., Stoyanov, S. D., & Paunov, V. N. (2009). Fabrication of functional anisotropic food-grade micro-rods with micro-particle inclusions with potential application for enhanced stability of food foams. Soft matter, 5(5), 1019-1023. https://doi.org/10.1039/b812706a

• Journal Article Type: Article
• Acceptance Date: Nov 7, 2008
• Publication Date: Mar 5, 2009
• Journal: SOFT MATTER
• Print ISSN: 1744-683X
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 5
• Issue: 5
• Pages: 1019-1023
• DOI: https://doi.org/10.1039/b812706a
• Keywords: food-grade micro-rods, shellac, ethyl cellolose, inclusions, foaming agents, foamability, yeast, polymer microparticles, solvent attrition
• Public URL: https://hull-repository.worktribe.com/output/391554