Award details

Surface shear rheology of bubble films

Reference	JE616457
Principal Investigator / Supervisor	Professor Brent Stuart Murray
Co-Investigators / Co-Supervisors
Institution	University of Leeds
Department	School of Food Science and Nutrition
Funding type	Research
Value (£)	17,624
Status	Completed
Type	Research Grant
Start date	31/03/2002
End date	31/03/2003
Duration	12 months

Abstract

The CIR-100 interfacial shear rheometer will be used to update the interfacial rheology equipment in the Food Colloids Group, interfacial rheology being a key area of expertise of the Group, key to many current and future projects. Ongoing projects include the examination of the relationships between bubble coalescence stability and interfacial rheology, bubble growth, and shrinkage in foams (disproportionation), interfacial phase behaviour of proteins and low molecular weight surfactants in relation to emulsion and foam stability, including competitive adsorption, the effects of spray drying on protein ingredients as surface active agents in foods, phase behaviour of protein-lipid monolayers as model membranes and the effects of phytochemicals on membrane permeability and structure. All these projects will benefit from the ease of use and rapidity of measurement of the CIR-100 as compared with our own conventional instruments. Another project is the testing of the theoretical description of adsorbed biopolymer films in terms of computer simulations and analytical description in terms of weak, two dimensional gels. In connection with this last aim we propose to compare the results of measurements made with the CIR-100 with data taken from other more conventional rheometers, to test the validity of the CIR-100 method.

Summary

unavailable

Committee	Closed Committee - Agri-food (AF)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	Joint Equipment Initiative 2001 (JE6) [2001]
Funding Scheme	X – not Funded via a specific Funding Scheme

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