The effect of total solid content (10 30%), oil concentration with respect to total solids (10 30%) and inlet air temperature (150 190 °C) on the encapsulation efficiency, oil retention, moisture content and powder hygroscopicity were evaluated by a complete 23 central composite rotatable design.
In turn, no correlations were found between moisture content in powders after their spray drying and RHc, the monolayer coverage values, as well as the MDSC Tg.
Prior to XRD and XRF analysis, the samples were dried to remove moisture content and powdered until grain pass through sieve 80 μm.
The process parameters inlet air temperature, nozzle gas flow rate and feed flow rate and their effect on WIV vaccine powder characteristics such as particle size, residual moisture content (RMC) and powder yield were investigated.
The validated model is used to perform parametric studies in order to evaluate the effect of the main process variables on the final product properties (e.g., particle size and density, powder moisture content) and to track key powder attributes for pulmonary administration.
A rapid method of determining the moisture content of milk powder by microwave sensor is investigated.
Physical properties including morphology, size, hygroscopicity, moisture content, process yield, powder flow and thermal analysis were evaluated.
Under these conditions, moisture content, hygroscopicity and powder yield are found to be 6.85%, 19.85 g/100 g and 14.95 g respectively.
However the yield and residual moisture content of dry powder decreased with an increase in the ratio of mannitol to trehalose.
It shows that the maximal measurement deviation was 0.2%, based on the microwave method, which provides an effective tool for determining the moisture content of milk powder in the dairy processing industry.
