Iodine Test for Polysaccharides

Add a few drops of Iodine to each sample Amber colour change = Glycogen Black-Blue colour change = Starch Negative Control = Water Positive Control = Glycogen Positive Control = Starch Alphabetical list of Samples: Arabinose, Fructose, Galactose, Glucose, Glycogen, Lactose, Maltose, Starch, Sucrose, Xylose