what color will iodine solution turn if starch is present
2. Place a few drops of iodine solution on each food. 3. Make observations immediately. 4. Wait a few more minutes and note any other changes. Observations Complete the chart below using the food your group has compiled. When drops of iodine solution are applied to a food containing starch, the solution will turn dark blue, purple, or blackish. Data table: Food product Description before testing Description after testing Conclusion: are complex sugars present? 1. 2. 3. 4. 5. 6.