Studies on Salt Fish.: VIII. Effects of Various Salts on Preservation

Spoilage, as measured by rise in trimethylamine and bacterial content, of cod press-juice containing 21.0 g. salt per 100 ml. (approximately 80 per cent saturated) is delayed longest with pure sodium chloride, and increasingly less with mined evaporated, mined crude, Mediterranean and Turk's Island solar salts. This order corresponds to decreasing percentages of sodium chloride and increasing percentages of impurities in these salts. The differences in the salt action increase with lower temperatures.