Quality Enhancement for Thermosensitive Materials Dried with Solid Carriers

Thermal drying is a widely applied method for dewatering of bioproducts. However, due to high thermolability of biomaterials, such a drying process may cause serious damage of the product quality. To minimize product degradation, the drying of biomass with porous solid carriers was applied. A set of experiments designed by the orthogonal method was carried out in a laboratory vibrofluidized bed dryer. A substantial improvement is documented in the final quality of the products when dried in the presence of a porous solid carrier. The effect of process parameters on quality retention is also presented.