Method for drying protein crystals

摘要

The present invention relates to a method for drying protein crystals contained in an aqueous protein crystal suspension wherein the method is characterized in that it comprises . The method is characterized in that the protein crystal suspension is dried in a centrifugal dryer and that after the protein crystals have been extracted from the protein crystal suspension by filtration said protein crystals are preferably transferred into a drying medium which consists of a mixture of water and a non-aqueous solvent which can be mixed with water to any ratio and has a lower vapour pressure than water. A drying gas humidified with water is advantageously used and the protein crystals are advantageously dried in a fluidized bed.