Abstract: A method for analyzing an intracellular component comprising the following steps, and a reagent kit comprising (a) an extraction reagent, (b) branched dextrin or a derivative thereof, and (c) a reagent for analyzing an intracellular component: (1) step of adding an extraction reagent to a sample containing cells to extract the intracellular component; (2) step of adding branched dextrin or a derivative thereof to the sample containing the extraction reagent; and (3) step of analyzing the extracted intracellular component.

Abstract: The present invention provides a process for eliminating effectively ATP in a sample, using adenosine phosphate deaminase alone or in combination with at least one enzyme from the group consisting of apyrase, alkaline phosphatase, acid phosphatase, hexokinase and adenosine triphosphatase, a process for determining biological cells contained in foods and beverages in convenient and precise manner in combination with bioluminescence method, and a reagent for the determination thereof.

Abstract: 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.

Abstract: The present invention provides a process for eliminating effectively ATP in a sample, using adenosine phosphate deaminase alone or in combination with at least one enzyme selected from the group consisting of apyrase, alkaline phosphatase, acid phosphatase, hexokinase and adenosine triphosphatase, a process for determining biological cells contained in foods and beverages in convenient and precise manner in combination with bioluminescence method, and a reagent for the determination thereof.