Abstract: A cellulose gel medium having good visibility of microbial colonies, a cellulose gel culture substrate for manufacturing the cellulose gel medium, a method for manufacturing the cellulose gel culture substrate, a method for screening cellulase-producing microorganisms or cellulase activity with greater efficiency and rapidity, and a culture substrate, which includes a cellulose gel containing cellulose and water as medium-solidifying components, the cellulose has the viscosity of 12 to 35 mPa·S as measured at 26° C. with a solution prepared by dissolving the cellulose at a concentration of 2.5 mg/mL in dimethylacetamide containing 8% (W/V) lithium chloride.

Abstract: Providing is a new enzyme assay method for enzymes having a water-insoluble or substantially water-insoluble substrate. In the method for measuring enzymatic activity, a prescribed amount of an enzyme is disposed on a part of the surface of a gel comprising dispersoids, at least some of which are the substrate of the enzyme. Recesses formed in the surface of the gel by the action of the enzyme are measured, and the enzyme activity is calculated on the basis of the measurement results and the amount of the enzyme. The measurement of the recesses formed in the surface of the gel is performed using a method for measuring the shape and the volume of the recesses, a method for measuring changes in the optical transmittance of the gel due to the formation of the recesses, or a method for measuring changes in the optical reflectance of the gel surface due to the formation of the recesses.

Abstract: A cellulose gel medium having good visibility of microbial colonies, a cellulose gel culture substrate for manufacturing the cellulose gel medium, a method for manufacturing the cellulose gel culture substrate, a method for screening cellulase-producing microorganisms or cellulase activity with greater efficiency and rapidity, and a culture substrate, which includes a cellulose gel containing cellulose and water as medium-solidifying components, the cellulose has the viscosity of 12 to 35 mPa·S as measured at 26° C. with a solution prepared by dissolving the cellulose at a concentration of 2.5 mg/mL in dimethylacetamide containing 8% (W/V) lithium chloride.

Abstract: In a printing press cleaning method of cleaning a circumferential surface of a rotary member on the basis of a cleaning parameter, the cleaning parameter is displayed. The displayed cleaning parameter is changed. The rotary member is cleaned on the basis of the changed cleaning parameter. The cleaning parameter includes at least one of values related to a cleaning member which comes into contact with the rotary member, a cleaning solution which is supplied to the rotary member, and the rotary member. A printing press cleaning apparatus is also disclosed.