Iodium Test

Iodium test/Lugol test is chemical test to detect the presence of amylum.
Amylum presence in many kinds of food, example: rices, corns, pottatoes, sweet pottatoes etc. The are two strains of  amylum chains, they are: amylose ( long and straight chains ), amylopectine ( long and branched chains). Tested amylose with iodium will show blue color, but amylopectine will show purple color.

Procedure:
1. Take 3 drops of amylum solution and add 1 drop of iodium solution
2. See the color of solution