You can put lemon juice on cut apples to prevent them going brown, however whole apples are best just stored dry
They stay better in the refrigerator.
Squeeze lemon juice on the apples and they will not turn brown if sliced before using a day or so later.
Use lemon juice.
Lemon juice is acidic and helps prevent your apples from browning. You can achieve the same thing using lime juice as well as it's not so much about adding flavour as it is about maintaining a nice colour
A small amount of lemon juice dashed over cut apples will keep them from browning.
You could try some freshly squeezed lemon juice. It works on apples. :)
To keep apples from turning brown add either powdered ascorbic acid or lemon juice and water. Cover the apples with plastic wrap placed directly on top of the apples.
If you are working with fresh fruit and would like to keep it from turning brown, place it in an acidic water bath. That is one-quarter cup of apple cider vinegar or one-quarter cup of lemon juice per quart of water. Mix it together, and as you are slicing your fruit, add it to the water bath. It will keep everything from turning brown.
Because the citric acid or ascorbic acid in lemons keep fresh cut fruits from browning from the air they are exposed to, also known as oxidizing. Limes have the same effect. There is a commercial product called fruitfresh which can be used for a substitute. See the related link for more information. This can also be used on apples, avacadoes, potato salads and any other salad that brown due to contact with air.
There is a lot of excess water in juice from lemons. The juice has some of its water removed by various methods, so that you can add more lemon flavor using less liquid. Similar processes are used with orange juice to thicken it before it is frozen to keep it fresh.
keep it in the frige
To keep fruit fresh after cutting it, store it in an airtight container in the refrigerator. You can also sprinkle some lemon juice on the cut fruit to help prevent browning.