Apples and Acids
For this project I was trying to look at how acids could keep a sliced apple looking as fresh as it did right when it was cut.
from doing some research I found out that lemons have absorbic acid which when coated on a sliced apple reacts with the oxygen in the air before it reaches the apple . If the oxygen in the air were to directly hit the apple then a reaction would occur causing the apple to turn brown. the acid in lemon juice slows down this reaction.
from doing some research I found out that lemons have absorbic acid which when coated on a sliced apple reacts with the oxygen in the air before it reaches the apple . If the oxygen in the air were to directly hit the apple then a reaction would occur causing the apple to turn brown. the acid in lemon juice slows down this reaction.
To do this project I needed an apple and a lemon. I cut both the apple and lemon in half and rubbed lemon juice on one half of the apple. I left the other half untouched so it can be used a control subject to see what would normally happen. after a few minutes i noticed the control subject turning brown and the apple with acid was not brown at all. it remained look the same as it did right when i cut it. from my research I knew this was because of the ascorbic acids in the lemon juice reacting with the air instead of the polyphemal oxidase released from the apple reacting with the air . when the polyphemal oxidase is released from the apple when it is cut it reacts with oxygen causing the browning.
I think this experiment was successfully done for many reasons. i got the exact results i was looking for and saw how acids can stop an apple from browning and learned what happened at the molecular level. I think following the steps exactly played a big role in the success of this project and keeping time did as well.
I think i performed well in this activity and followed through the steps very carefully.
If i were to do this project again I do not think there would be much i could change considering i worked alone.
i dont think i can continue this project in any way and would not want too.
I think i performed well in this activity and followed through the steps very carefully.
If i were to do this project again I do not think there would be much i could change considering i worked alone.
i dont think i can continue this project in any way and would not want too.
Apples and Acids