Dry powder cell culture products containing lipid and methods of production thereof

The present invention relates generally to nutritive medium, medium supplement, media subgroup and buffer formulations that contain lipid. Specifically, the present invention provides powder nutritive medium, medium supplement and medium subgroup formulations, particularly cell culture medium supplements (including powdered sera such as powdered fetal bovine serum (FBS)), medium subgroup formulations and cell culture media comprising all of the necessary nutritive factors including lipid components that facilitate the in vitro cultivation of cells. The invention is particularly directed to methods of production of these media, media supplement, media subgroup and buffer formulation, and also provides kits and methods of cultivation of prokaryotic and eukaryotic cells, particularly bacterial cells, yeast cells, plant cells and animal cells (including himan cells) using these dry powder nutritive media, media supplement, media subgroup and buffer formulations. The invention also relates to methods of producing sterile powdered media, media supplement (particularly powdered sera such as powdered FBS, powdered transferrin, powdered insulun, powdered organ extracts (such as bovine brain or pituitary extracts), powdered growth factors (such as EGF, FGF, etc.) and the like), media subgroup and buffer formulations. In a particularly preferred aspect, the invention relates to such methods wherein the sterilization is accomplished by gamma irradiation. The invention also relates to media, supplement, media subgroup and buffer powders produced by these methods.