Effects of Bentonite Combinations and Gelatin on the Rheological Behaviour of Bentonite – Apple Juice Dispersions

Autor: Dik, Tunay, Katnas¸, Sinan, O¨zilgen, Mustafa
Zdroj: Lebensmittel-Wissenschaft + -I.E. Und Technologie. Food science + technology. Science + Technologie Alimentaire; November, 1996, Vol. 29 Issue: 7 p673-676, 4p
Abstrakt: Rheological behaviour of bentonite – apple juice suspensions were experimentally determined at 25°C, within the shear rate range of 4.3 to 43.1 s−1with 0.90, 1.33 and 2.66 g/L bentonite mixtures and 0 to 0.25 g/L (on dry basis) gelatin concentrations. The mixtures consisted of 100%, 80%, 60%, 40% 20% and 0% Ca-bentonite and balance Na-bentonite combinations. The experimental data were described with the power law as τ =Kγ.1.56. The consistency index was related to the calcium, sodium and gelatin concentrations asK=K0+K1CαCa+K2CßNa+K3CεG.
Databáze: Supplemental Index