HORTICULTURE

HORTICULTURE SCIENCE

FRUIT SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In which conditions do you expect an apple slice to turn brown faster?
A
in lemon juice
B
in air (no liquid)
C
in water
D
in vinegar
Explanation: 

Detailed explanation-1: -Once we cut or slice an apple, we are opening up some of the cells inside it. This enzyme reacts with the oxygen in the air and this reaction turns the apple slices brown, forming pigments called Melanin( amino acid). The reactions happen best at warm temperatures and when pH is between 3.0 and 7.0.

Detailed explanation-2: -Step by step answer:Apples when cut into pieces and kept in the air-exposed for a long time turns brown. This occurs due to the oxidation process that goes on when the inside of the apple is exposed to air having oxygen and water molecules. Apple contains an enzyme known as polyphenol oxidase (PPO).

Detailed explanation-3: -Method #1: Lemon Juice Therefore, when you apply lemon juice to apple slices, it helps to prevent the oxidation process. To use this method to prevent apples from turning brown, create a water bath for your apple slices with a ratio of 1 tablespoon of lemon juice to 1 cup of water.

There is 1 question to complete.