Question
Wed March 21, 2012 By: Jaya Singh
 

How can we check the presence of starch in a given medium?State it experimentally.

Expert Reply
Thu March 22, 2012
Add few drops of Iodine reagent to the solution to be tested or directly on the food to be tested (like a potato or other materials such as bread, crackers, or flour). A blue-black color results if starch is present. If the food or solution does not contain starch, the drops will stay the same color (reddish-orange).
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