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Where Is the C?

CSEF · 2019 Biochemistry/ Molecular Biology

Cesar Duarte · Stonecreek Junior High, Bakersfield, Kern County

Overview

Objectives My goal in my project is to see which plant had the highest level of vitamin C. Methods Test five different plants of juice 31.25 mL/ 1oz mixed with 125 mL. of water and the same measurements of the vitamin C reference sample which I prepared with cornstarch for the test. I used an eye dropper to add (iodine) to oxidize each one. Record the total quantity of drops of iodine used in each juice sample until the blue color persists. Results My results in the test ended with papaya having the highest amount of vitamin C with 31.06 mg per ounce compared to other plant juices. Conclusions I have proven my hypothesis correct that papayas (31.06 mg) have the highest amount of vitamin C, but I found that the results broccoli had (30.09 mg) was close to the results papaya had leaving a 0.16 mg difference. The results in my data chart helped me prove that papaya has the highest vitamin C resource.

Summary statement

My project is about which plant contains the highest resource of vitamin C.

Help received

I designed this project by myself but received support from my science teacher, my home room science teacher, and the information I reasearched on the internet

Competition history

  • CSEF 2019 Biochemistry/ Molecular Biology · Entry J0507

Resources

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