title: Microbiological studies on drugs and their raw materials IV. Sterilization of microbial contamination in enzyme powder by gamma irradiation.
mesh_terms: D001412:Bacillus subtilis / Q000528:radiation effects; D004340:Drug Contamination / Q000517:prevention & control*; D004798:Enzymes / Q000528:radiation effects; D004926:Escherichia coli / Q000528:radiation effects; D005720:Gamma Rays; D011839:Radiation, Ionizing; D013242:Sterilization
chemical_list: D004798:Enzymes