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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.
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∙ 14y ago
Wiki User
∙ 13y agoCitric Acid in present Lemon Juice is a very simple reducing agent. When fruit goes brown it is being oxidised (reacting with the air) and the the lemon juice counter acts this oxidising process and thereby keeping the fruit looking fresh and stops it going brown
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∙ 9y agoThere are a couple of reasons why lemon juice stops apples from browning. This lemon juice is said to ward off decomposing bacteria.
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∙ 11y agoBecause the citric acid acts as a preservative
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∙ 9y agoLemon juice acts to prevent the browning of fruit because it forms a layer of acid so the oxygen can't reach the fruit. This is true especially for apples.
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∙ 13y agothe urine in the lemon juice keeps the apple ripe
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Can you use bottled lemon juice instead of fresh?
Yes, you can substitute reconstituted lemon juice for fresh lemon juice.
Can you substitute kumquat juice for lemon juice in canning?
No you cannot. Lemon juice is used to achieve a specific ph in the finished product to avoid spoilage. The lemon juice should be bottled not squeezed fresh as bottled juice has a specific ph level, fresh fruit varies in its ph level by brand and ripeness of lemon.
What will happen to fruit in cakes Without lemon juice?
They will not stay fresh as long and they will have a slightly different taste to them.
What will help an apple stay fresh the longest lemon juice or orange juice?
Lemon Juice
What is the substituition for 1 fresh squeezed lemon using lemon juice concentrate?
The substitution for 1 fresh squeezed lemon using lemon juice concentration is 1 TBS.
Is Lemonade a fruit juice?
a lemonade is a frut juice because it has a lemon on it and a lemon is a fruit.
Is lemon juice and lemon soda the same?
No, lemon juice is squeezed fruit juice, lemon soda is a carbonated beverage usually with artificial lemon flavor.
How lemon juice can prevent reddish-brown reaction on fresh fruit?
To a large degree, it is the ascorbic acid (vitamin C). This is the main ingredient in products such as fruit fresh. To a lesser degree, citric acid.
Cleaning Pennies with Fruit Juice is it lemon juice?
yes you use lemon juice to clean pennies because of the acid in the lemon juice hi with pie
Why salt turns blue when added to lemon juise?
Salt turns blue when added to lemon juice because it has iodine inside it. When lemon juice is added to iodine, it changes colour.
How do you keep bananas from turning brown in fruit salad?
keep it in the frige
What else can you put on fruit from browning besides lemon juice?
Lime juice!
