G. C. Edmondson, A pound of prevention (1958)
“ If food is so lousy the flies won't touch it, then humans have no business eating it.""What's the food got to do with it?" Hagstrom asked."Quiet!" van den Burg hissed."—got by all right on Earth where there was plenty of reinfection, but when you sealed us in this can without a bug in a million miles—" Aréchaga's voice continued."If food can't rot it can't digest either. Irradiate it—burn the last bit of life out of it—and then give us a whopping dose of antibiotics until there isn't one bug in our alimentary tracts from one end to the other. ”
