Patent ID: 6689755
Filing Date: 2004-02-10
Classification: A61K,B01D,F26B,Y10S

Abstract:
A method of producing dry, amorphous, and stabilized biological material comprising:a) dissolving at least one carbohydrate and at least one amino carboxylic acid into water; b) suspending a biological material into the mixture from step (a); c) adjusting the pH of the solution of step (b) to from about 7.0 to about 8.0; and d) convection drying the solution of step (c) at a temperature from about 100Â° C. to about 180Â° C. to a residual moisture content of less than about 8 percent using a method selected from the group consisting of spray-drying, fluidized bed drying, lift air drying and flight drying, thereby producing the dry, amorphous and stabilized biological material having a glass transition temperature of greater than about 20Â° C.