RHEOLOGY OF FRESH, AGED AND GAMMA‐IRRADIATED EGG WHITE

Abstract

SUMMARY– Rheology of unmixed egg white at 2°C was studied with a narrow‐gapped rotational viscometer over a 20‐fold range of shear rates. For a constant shear rate, egg white consistency decreases with time and approaches an equilibrium value in a few minutes. Flow behavior is pseudoplastic at 2°C between shear rates of 8.1–147 sec ‐1 and the shear stress‐shear rate relation is accurately described by the power law and Casson models. The effects of gamma irradiation dose on Haugh unit score and equilibrium shear stress are discussed.