Kikkoman Corporation

Moto-o Nakajima

Noriaki Hattori

Keiko Yajitate

There are provided a method and a kit for testing microbial drug resistance and a method and a kit for measuring minimum inhibitory concentration for a microorganism, in which highly reliable evaluation results are obtained by preventing false evaluation based on false-resistance of microorganisms to a drug. The method of testing microbial drug sensitivity comprises inoculating and culturing a microorganism in a drug-containing medium to obtain a medium containing the microorganism morphologically transformed by the influence of the drug, adding an ATP elution agent and an ATP deletion agent to the culture to delete the eluted ATP and other ATP in the medium, and comparing the amount of ATP in the microorganism remaining in the culture with the amount of ATP in the microorganism separately cultured in a medium not containing said drug and treated in the same manner as above. The method of measuring minimum inhibitory concentration for a microorganism is carried out in the same manner as above.

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Chiba-ken, Japan

Moto-o Nakajima