We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

The amount of antioxidants Essay

Essay Topic:

Sorry, but copying text is forbidden on this website!

Hypothesis: The amount of antioxidants would decrease as the number of brews increases.

Biological principal:

An antioxidant is a molecule that inhibits the oxidation of other molecules. Oxidation is a chemical reaction involving the loss of electrons. Oxidation reactions can produce free radicals. These radicals can start chain reactions. When the chain reaction occurs in a cell, it can cause damage or death to the cell. Antioxidants terminate these chain reactions by removing free radical intermediates, and inhibit the oxidation reactions, hence prevent the damage caused by oxidation to cells.

Therefore, if we have insufficient levels of antioxidants, the oxidative stress may damage or kill cells, leading to diseases, such as cancers. Therefore brewing tea has become popular nowadays, as antioxidants such as vitamin C and polyphonols are released from tea leaves during brewing.

Hence people claim that drinking tea could prevent diseases like cancers. In this experiment, DCPIP solution is used to test the amount of vitamin C in the tea sample.

DCPIP solution is a blue substance that would turn from blue color to pink with acids while turn from blue color to colorless with ascorbic acid (vitamin C). Therefore the DCPIP solution is used to test the concentration of vitamin C in a certain substance, by measuring the amount of substance needed to decolorize the DCPIP solution.

When more of the substance is required to decolorize the substance, it means that the concentration of vitamin C in the solution is low; if less amount of the substance id required to decolorize the DCPIP solution, it means that the substance contain a higher concentration of vitamin C. Investigation: In this lab, I will investigate in the concentration of vitamin C in a sample of fermented tea and a sample of unfermented tea, and also the concentration of vitamin C in different number of brews of the two sample. Design of experiment: In this experiment, I will brew the two samples of tea for four consecutive times. Then, I will look at the amount of tea sample needed from each brew of the two samples to decolorize the DCPIP solution.

How to cite this page

Choose cite format:

The amount of antioxidants. (2016, Sep 18). Retrieved from https://studymoose.com/the-amount-of-antioxidants-essay

We will write a custom sample essay onThe amount of antioxidantsspecifically for you

for only $16.38 $13.90/page
Order now

Our customer support team is available Monday-Friday 9am-5pm EST. If you contact us after hours, we'll get back to you in 24 hours or less.

By clicking "Send Message", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
No results found for “ image
Try Our service
online

Hi, I am Sara from Studymoose

Hi there, would you like to get such a paper? How about receiving a customized one? Click to learn more https://goo.gl/CYf83b

online

Hi, I am Sara from Studymoose

Hi there, would you like to get such a paper? How about receiving a customized one? Click to learn more https://goo.gl/CYf83b

image

Your Answer is very helpful for Us
Thank you a lot!