[winkler92]

We were asked to do a lab in school determining the affect of different factors on the concentration of Vitamin C in orange juice. One option was to increase the temperature. While researching I have found many different explanations. One source states that increasing the temperature up until 70 celcius, the enzymes that catalyzes the oxidation will be denatured therefore it will be preserved and that after 70 degrees the vitamin C will denature. I have read contradicting things on the internet and not sure what is true. Any help is appreciated.

Thank you in advance.

[Mitch]

Wikipedia has the decomposition temperature at 190–192 °C (374–378 °F), so you should be fine. It is typical for enzymes to start breaking down from 70-100 °C