DRY POWDER CELL AND CELL CULTURE REAGENT AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide, specifically, a powdered 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 necessary nutritive factors that facilitate the in vitro cultivation of cells, relating generally to nutritive (e.g., cell culture) medium, medium supplement, media subgroup and buffer formulations.SOLUTION: There is provided such powdered formulations that produce particular or desired final ionic and/or pH conditions upon reconstitution with a solvent. There are also provided methods for producing these formulations, and also kits and methods for cultivating prokaryotic and eukaryotic cells using these formulations, methods for producing sterile formulations, and methods for producing dry cell powders. There are also provided cells, media, media supplement, media subgroup, and buffer powders produced by the methods.