Freeze drying also known as lyophilization is a process in which water content in the sample is removed from a frozen state under a vacuum environment. The process involves sublimation of solid water directly to vapor without the intermediate liquid phase. This process s considered to be ideal for preserving the integral structural properties of biological as well as chemical samples. Prevest Research Institute is equipped with a Biobase laboratory freeze dyer model BK FD10Plaboratory with a total loading capacity (liquid): 1.2L over a freeze drying duration of 24 hrs.