It will usually turn black that is a starch test you can test It on various vegetables and sources if food like peanuts and bananas and if they turn black it means they have some trace of starch in them
Iodine test is a procedure that tells whether a certain element or the such contains starch (or sugar) in it.In this test, we add iodine solution (with, possibly, KI reagent) to a material [in your case, sugar]. If starch ispresent, a blue-black, somehow purple, color will result, changing the initial color of iodine. If starch amylase (sugar) is NOT present, the color will remain orange/yellowish.
If you add Iodine-KI reagent to foods containing - starch such as bread, potato, crackers, or flour. A blue-black color results.If starch is not present, then the color will stay orange or yellow. (Iodine will not turn blue-black on contact with cellulose or disaccharides such as sucrose in sugar).Thus if you apply Iodine to an unripe fruit (where the sugars are still held as starch) the fruit will turn Blue-Black.However, once the fruit is ripe and the starch has been transformed into sweet sugar, the application of Iodine will only stain the fruit orange or yellow.
If you add iodine to a leaf, a black color will show that starch is present
2grm iodine and 4grm KI add to 1000ml of water
You get Mikey.
It turns blue-black
A classic way of testing for the presence of starch is to add a drop of tincture of iodine. If the brown solution turns violet then starch is present.
you die
If you add iodine to starch the start will turn to a dark color blue/blk because of the enzyne Amylase (in starch), so if it is non starch there will not be a reaction and it will be clear.
The starch solution will turn black, while the distilled water will remain brown, the same colour as the iodine. This is actually because water, normally used as a control, does not contain any starch and as we know, the iodine test is highly specific for the presence of starch hence no colour change other than iodine dissolving in water to form an iodine solution contrary to starch which we know complexes with iodine, to form starch-iodine complex forming the blue-black colour observed
To detect starch hydrolysis on a starch agar plate, you can add iodine solution. Iodine reacts with starch to form a blue-black color, and if starch is hydrolyzed by the organism, the clear zone around the bacterial growth will indicate the presence of amylase, an enzyme that breaks down starch.
You can test for starch in general using the chemical iodine test. If starch is present, a solution of iodine (I2) turns blue-black.
It is simply called the Starch test which is the process of testing something for the presence of starch. Add Iodine solution to whatever is it you're testing and a dark blue/black color indicates the presence of starch
The presence of starch can be tested with the help of Iodine. Similarly Benedict's test solution is also used to detect the presence of starch.
you will die
The potato will turn blue, purple, or black as the iodine reacts to the starch in the potato.
Iodine solution is commonly used to test for starch. If starch is present in a substance (e.g. a leaf which undergone photosynthesis) then the iodien solution would turn blue black. If no starch is present then it remains as light brown.