I. Die Inaktivierung von Escherichia coli K-12 durch den Phosphonsäureester Trichlorphon

Trichlorphone is bacteriocidal for Escherichia coli K-12. The bacterial inactivation depends on the concentration and the reaction time of trichlorphone and on the growth phase of the bacteria. DDVP formed by hydrolysis of trichlorphone had a higher bacteriocidal effect than trichlorphone itself; pH-changes may modify the effectiveness. The processes that take place in the bacterial cultures containing trichlorphone are discussed.