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| CANNON. |
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| INTRODUCTION |
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ORIGIN AND VARIETIES
 The cannon is an original and proper fruit of Indonesia and Malaysia. His cultivation has spread to other tropical countries of Asia and America. The principal producing countries nowadays are Thailand, Brazil, Colombia and Bolivia.
The cannon and the bilimbín, both fruits of similar forms, are the two only varieties that produce the plants that belong to the family of the Oxalidáceas.
HIS BEST EPOCH
We can find it on our markets the whole year.
CHARACTERISTICS
 has a very curious, oval, elongated form, with five edges or wings and, to the cut, of star of five tops.
 is of small size, with a length that it ranges between 7 and 12 centimeters.
 has a thin, glossy and eatable skin, of color between green or golden and yellow - orange when it is mature. The pulp is creaking, of soft texture and yellow glassy.
 the pulp has few ones or no seed, it is abundant, creaking, juicy and with a thin sweet and sour flavor. The big fruits of the cannon are tastier and sweet than the smallest, with a more sweet and more sour flavor.
HOW TO CHOOSE IT AND TO PRESERVE IT
To verify that it is mature, we will concentrate on his color and on the singings. If the fruit has a color between yellow and orange and the singings are a little darkened, it means that the fruit is mature.
It is preferable to preserve it in a fresh place, far from the direct contact with the light of the sun. If, on having bought it still this one green, it is necessary to leave to temperature ambience (20ºC). Once it matures, it is recommended to keep the cannon in the icebox, where it survives in ideal conditions up to two or three weeks to not low temperature to 5ºC.
NOURISHING PROPERTIES
His majority component is the water. It contains small quantities of simple and even minor carbohydrates of proteins and fats, therefore his caloric value is very low.
The pulp of the cannon is rich in oxalato of calcium and soluble fibre.
It contains a moderate provitamina quantity A and of vitamin C.
As for minerals, he emphasizes his content in potassium.
The provitamina A or beta caroteno transforms in vitamin A in our similar organism this one needs it. The above mentioned vitamin is essential for the vision, the good state of the skin, the hair, the mucous membranes, the bones and for the good functioning of the immune system. The vitamin C intervenes in the formation of collagen, bones and teeth, red globules and favors the absorption of the iron of the food and the resistance to the infections. Both vitamins, they fulfill also an antirust function.
The potassium is a mineral necessary for the transmission and generation of the nervous impulse and for the normal muscular activity, it intervenes in the water balance inside and out of the cell.
In minor proportion certain vitamins of the group are B and mineral like the calcium, of worse use than the one that comes from the milk or other food that are a good source of the above mentioned mineral.
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