The tubes were filled with 3 ml of their corresponding pH phosphate buffer. 10 drops of catechol and 10 drops of potato juice, which contains catecholase, were added to each of the seven tubes. The tubes were covered with Parafilm, stood for 5 minutes, and mixed every minute. After the 5 minutes, data was recorded based on the intensity of color with the “0,+,++,+++” …show more content…
Each test tube was filled with its corresponding pH 7 phosphate buffer and catechol amounts from Table 2, covered with Parafilm, and inverted to mix. Then, 30 drops of diluted potato juice extract, obtained from a stock potato extract 1:1 bottle, was added to each tube. Then, the tubes were incubated at room temperature for 5 minutes and mixed by inversion every minute. After the 5 minutes, the color intensities of the test tubes were recorded with the “0” to “+++” scale. The differing amounts of catechol allowed for varying substrate concentration to be studied, and the potato juice was diluted to produce a limited amount of