APPLES:D -I like 'em(:

Reference: http://www.humantouchofchemistry.com/why-do-cut-apples-turn-brown.htm

You take out an apple to consume a nummy-yummy treat that is good for your health as well, then when you a) take a bite or b) cut it up, it turns brown! Your apple has done been rusting. :/ Well, considering we know that when a color change appears it means it is having a chemical reaction! However, we come to wonder, why does this happen?! I'm not everyone, but I prefer my apple an apple color and not an unappetizing brown.
Apples are filled with their buddy iron, it is in all their cells. Then you like to injure their cells by breaking them with your knife or teeth. After that, oxygen fills into the broken cells from the air and makes this thing called iron oxides. Clearly, it causes the brown colorization. There is an enzyme entitled polyphenol oxidase, which is present in the cells that get broken leading to the color reaction to be faster. When you cut the brown part of the apple in half once more, you will gather the fact that the inside of the second cut part is still the shade of white due to they were still intact and said no oxygen you are not allowed in.
This article is helpful because we can learn how to maintain our apples perfectly delicious white exterior beneath the skin (despite the fact the brown doesn't even affect the taste, it just looks flat out gross). You can slow or stop the oxidation color change process in six different ways. Making apple juice, yum<3. Cut and then place them under water, which will in turn block the air from reaching the iron. Rub some lemon juice on your apple!!!! That will look kinda' funny and stop the polyphenol oxidase from working. Want to make some pie?? What flavor? Apple. Yes, place your apple slices in boiling water for a few and you've blanched the apple making the browning enzyme to come to a halt. You could also place some salt that will stop the enzyme. You could also place them in an airtight jar.
Personally, I believe the article was well written and easy to understand. It released simple in-tell about the oxidation process of apples that turn it brown.