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There is a high amount of acid in lime juice and the part of the apple that makes it turn brown(enzyme) when exposed to oxygen, has an edible effect on the enzyme to protect it from browning

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12y ago
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14y ago

citric juice causes a chemical reaction with the apples... it preserves them just like cold would do

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14y ago

The lime is sour and keeps the apple from turning brown.

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Q: Why does lime juice keep an apple from turning brown?
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What gas is responsible for turning apple brow?

Oxygen. Dip apple slices in lemon juice to keep them from turning brown.


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All you have to do is keep them in a plastic bag with a tiny bit of air in it and put in the fridge. But eat them soon! Also coating them with lemon juice will prevent them going brown ^^^The air is what turns them brown, so that will not work. Lemon juice or orange juice will, though. It is the acid in the juice that prevents them from oxidizing and turning brown.


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