Method of drying biological material

摘要: A method for producing foams containing biological materials is described. solid or semi-solid paste formed by combining biologically active material with a protecting agent in an aqueous solvent. The allowed to set, and may optionally then be apportioned into the desired shape. frozen allow formation of ice crystals act as porogens. Subsequently, exposed travelling wave radiant energy under vacuum (t-REV) drying. This causes solvent boil off, leaving dried material, agent, relatively low water content. Biologically which can used include cells, microbial cultures, live attenuated microbes, probiotics, yeasts, enzymes, vaccines, proteins, any heat-sensitive material. By directing via through sample, good control temperature process conditions achieved. provides alternative conventional methods particulate leaching freeze