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ACTIVITY OF DIASTASE ON STARCH Brief Starch is a polymer where the individual units in the polymer are glucose molecules. The most important enzyme that degrades starch is called diastase. This enzyme catalyses a split in the starch polymer so that eventually what is left over are short chains consisting of just a few glucose units (maltose). These can then be broken down by water so that the entire starch polymer is degraded to glucose. The glucose concentration that will be produced in a fixed time by the action of diastase on starch can be measured to find out the rate of hydrolysis of starch, as the equation below shows: STARCH DIASTASE GLUCOSE + MALTOSE The reaction between starch + water = glucose is called hydrolysis. In the chemical reaction that occurs, water is introduced into the bond between two glucose units with a...

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