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How many kinds of fruits are there in the world?
Berries: such as strawberries, mulberries, cranberries, blueberries, blackberries, raspberries and red vinegar berries. They usually grow in colder places, so it is difficult to see fresh ones except strawberries and mulberries in Taiwan Province Province. This kind of fruit is brightly colored and often used as decoration in cooking. It is rich in vitamin C and anthocyanins, but it is easy to be destroyed during transportation and storage.

Citrus: such as orange, Liu Ding, kumquat, lemon, grapefruit, Wendan, grapefruit, lime, etc. , a fruit with abundant output in Taiwan Province Province, is deeply loved by Chinese people and is considered as "auspicious". It is also the "sour" fruit with the richest vitamin C content among all fruit types. Besides raw food, it can also be made into fruit juice, jam and other products.

Grape: It is a kind of fruit with many varieties, rich yield and bright color, and it is also the one with the highest economic value. Besides fresh food, it can also be made into wine or dried fruit, fruit juice or jam. In addition to the nutrients contained in common fruits, polyphenols contained in black, purple or red grapes and antioxidant proanthocyanidins (OPC) contained in peels and seeds are also very hot health topics recently.

Drupe: such as cherry, peach, plum, plum, jujube, olive, longan, litchi and so on. All of these contain a drupe. Most of them are fresh, and they can also be pickled and made into processed foods, such as candied fruit, canned fruit, dried fruit or fruit wine.

Drupe: such as apples, pears, persimmons and loquats. There are some stones in it. Generally speaking, apples and pears are rich in water-soluble dietary fiber-pectin, which helps to regulate metabolism in the body, while persimmons and loquats have less output because of their short production season.

Melons: such as watermelon, melon, cantaloupe, cantaloupe, etc. Protected by hard skin, it can be stored at room temperature if it is not cut, and it is not easy to rot. It is a sweet fruit with high water content and high sweetness.

Expand the knowledge of fruit preservation methods;

Fruits that cannot be cooled down and are perishable should be packaged at room temperature for preservation. For example, papaya and papaya are also fruits that can't be kept in the refrigerator. There will be black spots. Although the display cabinet can absorb water, once it is taken out of the refrigerated display cabinet, the temperature difference will produce moisture on the surface of papaya and produce stale black spots. Put it in a cool place. So papaya can be preserved for a long time. The correct way to preserve papaya is to wrap it in newspaper and keep it fresh all the time.

Fruits that are perishable in contact with air should be covered by the insurance law of cool fresh-keeping bags. Such as bananas, bananas, the correct way should be to put bananas in fruit preservation bags. Put it in a cool place. The popular food here reminds everyone not to put bananas in the freezer.

If the epidermis is very thick, it is necessary to apply the fresh-keeping bag insurance law. Like watermelon, just cover the surface of watermelon with plastic wrap. In fact, it is not right to keep watermelons fresh like this, because they look very easy in cake cabinet. But in fact, the deli cabinet will absorb water from watermelon skin, so it is useless to cover it with plastic wrap. Therefore, watermelon preservation should be wrapped with plastic wrap, and the skin should be wrapped with plastic wrap together. Then squeeze the air out.

If the shelf life is particularly short, it may rot in one day, so the cooling method should be applied. For example, litchi, a pot of water with a salt of about 10g, is soaked for a while and then dried, put into a fresh-keeping bag of Guole, put into a freezing layer below zero, then taken out and naturally thawed at room temperature. Litchi preservation should not be placed in the fresh-keeping warehouse to remind everyone. It is best to put it in the freezing layer below zero and let it thaw naturally after taking it out, because only in this way can the color, fragrance and taste of litchi be effectively preserved.

References:

Fruit _ Baidu encyclopedia