How To Make Easy Of Vitamin C Indicator
By Sam Cyrus

Vitamin C indicator can be made in different ways and substances. The substances for making the vitamin C indicator vary from inexpensive to expensive. It may be the inexpensive one is made of corn starch. Even though they are different directions or substances, but basically they use color change to distinguish.

It is not easy to get 100% accuracy of the vitamin C indicator solution. Meanwhile, we all know that nutritious food contains vitamins and minerals. However, the healthiest foods are often the whole foods, such as produce, that don't come with such a handy guide. It is possible, though, to compare the amounts of certain vitamins and minerals in foods by using a homemade indicator. So, a vitamin C indicator may be one easy indicator to make by using inexpensive materials.

The other way to make the vitamin C indicator solution, beside using the starch, is by using indophenol. Even though there are two different preparations (starch-iodine or indophenol) that may be used for the vitamin C indicator solution, neither is more accurate than the other. Below is example how to make the vitamin C indicator by using corn starch.

Step-1 : Take 1 tablespoon of corn starch then mix it with enough distilled water to form a corn starch paste. Step-2 : Add 250 mL water to the corn starch paste and bring to a boil.  This forms  a starch solution.       Step-3 : Place about 75 mL water in a flask or glass. Add 10 drops of the solution you made in Steps 1 and 2 to the water.                                                                                                                                                     Step-4 : Add the 2 percent solution of iodine slowly until the color of the liquid in the flask or glass becomes dark bluish purple, almost black. So, this solution is your vitamin C indicator.                                             Step-5 : Compare the solution in step 4, to the vitamin C concentration of different foods. The lighter color of the indicator solution after you add the food to it means the more vitamin C present.

The fruit juices may be easier to test of the vitamin C indicator. Put about the same amount (of drops) of juice, 5 mL for instance, and compare the colors. You can compare by observing and recording how many drops you add before the solution becomes colorless or fill several test tubes with indicator. Which one have the most vitamin C can be seen from the lightest color of the vitamin C indicator.