Friday, January 06, 2012

How much Vitamin C is in orange juice?

Okay, I know this is not about our family that much I thought it would be cool to post a tutorial for my science fair project. I am trying to find out how much vitamin C is in concentrate orange juice, fresh squeezed, and florida's natural store bought. When trying to find out how to do this experiment there were no videos or pictures, so I decided to make the first one.



Here are the materials            1st: mix 1 tablespoon of cornstarch with enough water to make paste



2nd: Add 250 mL of water to the paste, and boil for 5 minutes

3: Add 10 drops of starch solution to 75 mL of water

                                   Add enough iodine to create a dark purple blue color
                            Get 5 ml of iodine (above) and put in a cup (below)
Add drops of orange juice into the solution. Whichever kind uses the least drops to turn the solution clear (below) is the one with the most vitamin C. 

Now, just try it yourself! :) 




No comments: