Because the enzyme amylase was denatured. It was boiled first before putting the starch in.
The test is positive with starch because the iodine takes up a position in the centre of the starch helix which is blue black.
It is used to test for starch.
Use iodine to test a leaf for starch | Plant Physiology | Biology
Digestion Science haters that cheat on test and if you say no you're gonna pay
You are thinking of iodine. It is a way to test for starch.
Starch digestion (hydrolysis) is incomplete
theory of starch test kit?
Starch doesn't react in the Benedict test.
You can test for starch in food by dropping iodine on food on an agar plate, if it turns black, it contains starch.
Starch has high affinity for Iodine and in presence of iodine crystals starch turns blue from being colourless. This the fundamental that is used for chemically identifying the starch.
I think you mean starch and to test for it you have to use iodine and this turns black if there is starch in your food if nothing happens then there is no starch in the food.
The test is positive with starch because the iodine takes up a position in the centre of the starch helix which is blue black.
If the food has starch or not
It is used to test for starch.
The iodine test is applicable.
The test of starch by covering the black paper and keeping it into a light place at few hours.
The iodine test is used to test for starch. It reacts with starch to produce a purple blackish color.