Abstract
AbstractThe application of a simple commercially available apparatus to the measurement of the dynamic shear modulus for viscoelastic food dispersions and gels is described. For vibrant gels the shear modulus can be determined to a precision of ±5% in the range 50 to 5 × 105 Nm−2 and the value is independent of the frequency as the gel behaves like a simple elastic solid. The measurement causes minimal mechanical disturbance to a gel or dispersion and is thus ideally suited for monitoring weak network structures. With weak or “dead” gels, or pastes, the dynamic modulus at just one frequency, 200 Hz, is found.
Published Version
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