What test result would occur if the amylase you used contained sugar?
What test result would occur if the amylase you used contained sugar? Would your results be as valid? The test would show a positive result for sugar. The experiment would not be valid as it would not show a change from starch to sugar if sugar is already present.
What would a positive iodine test indicate?
A positive result for the iodine test (starch is present) was a colour change ranging from violet to black; a negative result (no starch) was the yellow colour of the iodine solution.
Is the product of starch digestion see above detected by iodine?
For the reaction under study, iodine solution is used as a starch indicator (tests for the presence of starch) and can be used to track the digestion of starch by amylase. Iodine is typically orange-yellow in color, and in the presence of starch it becomes blue-black.
What is litmus cream?
Litmus cream contains fat and a litmus powder indicator. The indicator is blue in the presence of fat but turns pink if lipase hydrolyzes the fat into fatty acids. The free fatty acids lower the pH and the solution turns from blue to pink when the pH is acid.
What causes litmus to change from purple to pink?
A purple or neutral litmus paper changes color, from its original violet to red, to indicate an acid and turns blue under alkaline (or basic) conditions. They are able to indicate the presence of both acids and bases and change color to blue or red to denote a base or acid respectively.
What does bapna stand for?
What does BAPNA stand for? N-alpha-benzoyl-L-arginine-p-nitroanilide. What is BAPNA? synthetic substrate that is acted upon by trypsin and used in the food industry.
What does bapna test for?
The BAPNA test detects the rate of enzyme activity in the sample, i.e. enzymatic cleavage of the BAPNA molecule. In other words, the BAPNA test indicates how much enzyme activity is present, whereas our Roche kit will tell you how much Trypsin protein is present (whether active or not).
What happens to the reaction rate when most of the substrate is used?
Conclusions: The rate of a chemical reaction increases as the substrate concentration increases. Enzymes can greatly speed up the rate of a reaction. However, enzymes become saturated when the substrate concentration is high.