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Controlled Atmosphere Storage

(Commonly known as CA Storage). A technique developed in America by Robert M. Smock in the 1940"s for storage fresh fruit and vegetables (originally apples) in a gastight room in which the oxygen content has been reduced. Removing oxygen slows down the ripening process of the fruit, which normally breathe in oxygen and give off carbon dioxide, just as animals and humans do.

Strawberries, bananas and lettuce are all successfully treated in this manner. While fresh apricots keep for 6 weeks instead of 10 days and sweet cherries 4 weeks instead of 7 days when natural gas is used to brake the natural ripening process.

In the U.S.A. thousands of railroad cars and lorry trailers have been equiped with the atmospheric joints necessary to operate the system.

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