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5/09/2017

Topic Reading-Vol.1854-5/9/2017

Dear MEL Topic Readers,
How farmers put apples into suspended animation?
Do you eat or buy apples only in fall when they are picked off the trees in the fall? But apples are on the shelves almost all year around Why do apples stay fresh, or not over-ripened so long? Where are they stored, and how?
You may think temperature control does most part to keep the fruit from go ripening. If that is the case, apples must have been stored in fridges somewhere. But you also know that you can keep apples, or any other fruits, fresh only for a week or a few weeks in the fridge. So how are those apples on the shelves have been kept “fresh”?
In fact, atmosphere and chemicals do a lot to control the ripening process. One method that has been used to keep the fruit fresh is to reduce the oxygen in the air, which is essential for ripening reaction, from the normal 20% level down to a few percent level. Another way is to use a molecule to block the access of the hormone.
Simple enough?
Enjoy reading and learning what makes you enjoy eating apples all year round.

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