The effect of cationic compounds of biological origin on the heat resistance of Bacillus subtilis spores

Abstract

Spores of Bacillus subtilis were produced in the presence of several cationic compounds. Thermal-destruction studies revealed that cationic compounds increased heat resistance of the spores. Of the compounds tested, lysine-rich histone, isolated from calf thymus, afforded the greatest degree of protection against moist heat at 100°.