Abstract: The present invention relates to the field of carbohydrate crosslinked glycoprotein crystals. Advantageously, such crosslinked glycoprotein crystals display stability to harsh environmental conditions, while maintaining the structural and functional integrity of the glycoprotein backbone. According to one embodiment, this invention relates to methods for concentrating proteins that have been modified by carbohydrates and for releasing their activity at controlled rates. This invention also provides methods for producing carbohydrate crosslinked glycoprotein crystals and methods for using them in pharmaceutical formulations, vaccines, immunotherapeutics, personal care compositions, including cosmetics, veterinary pharmaceutical compositions and vaccines, foods, feeds, diagnostics, cleaning agents, including detergents and decontamination formulations.

Abstract: The present invention relates to the field of carbohydrate crosslinked glycoprotein crystals. Advantageously, such crosslinked glycoprotein crystals display stability to harsh environmental conditions, while maintaining the structural and functional integrity of the glycoprotein backbone. According to one embodiment, this invention relates to methods for concentrating proteins that have been modified by carbohydrates and for releasing their activity at controlled rates. This invention also provides methods for producing carbohydrate crosslinked glycoprotein crystals and methods for using them in pharmaceutical formulations, vaccines, immunotherapeutics, personal care compositions, including cosmetics, veterinary pharmaceutical compositions and vaccines, foods, feeds, diagnostics, cleaning agents, including detergents and decontamination formulations.

Abstract: The present invention relates to the field of carbohydrate crosslinked glycoprotein crystals. Advantageously, such crosslinked glycoprotein crystals display stability to harsh environmental conditions, while maintaining the structural and functional integrity of the glycoprotein backbone. According to one embodiment, this invention relates to methods for concentrating proteins that have been modified by carbohydrates and for releasing their activity at controlled rates. This invention also provides methods for producing carbohydrate crosslinked glycoprotein crystals and methods for using them in pharmaceutical formulations, vaccines, immunotherapeutics, personal care compositions, including cosmetics, veterinary pharmaceutical compositions and vaccines, foods, feeds, diagnostics, cleaning agents, including detergents and decontamination formulations.

Abstract: The invention concerns a stable glucose isomerase concentrate, in which the glucose isomerase is present as dissolved in a concentrated polyhydroxy compound containing water solution. The invention also concerns a process for the preparation of such a glucose isomerase concentrate, whereby(a) a suitable salt is added to a partially purified glucose isomerase solution obtained from fermentation, so as to crystallize the glucose isomerase,(b) the solution is cooled so as to promote crystallization of the glucose isomerase, and the crystal mass formed is separated, whereupon, if desired, one or several recrystallizations are performed, and(c) a carbohydrate or a concentrated water solution of same is added to the crystal mass obtained, which said mass is dissolved, whereby a stable glucose isomerase concentrate is obtained. The glucose isomerase concentrate in accordance with the invention is used for immobilizing the glucose isomerase on a carrier material.