The effect of temperature on the physical
properties of fresh noni (Morinda citrifolia L.) juice with
three different solid concentrations (5, 10, and 15°Brix) was
investigated. The flow behaviour index (n) and thermal
conductivity (k) were found to increase with the increase in
temperature. On the other hand, the juice density (ρ) and
consistency coefficient (K) were found to decrease with
increasing temperature. The increase in solid concentration
leads to increase juice density and consistency coefficient,
but reduce flow behaviour index and thermal conductivity.
The experimental data were then correlated with temperature
and solid concentration using nonlinear regression
equations or empirical models. It was found that the
physical properties calculated using proposed equations
agree well with the experimental data with coefficient of
determinations (R2) ranged from 0.9897 to 0.9998
