What is the correct method of fruit preservation – authoritative article

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What is the correct method of fruit preservation

Fruits are very natural nutritious food, but fruits cannot be bought too much, because they are not easy to preserve for a long time, especially the indoor environment and temperature at home will accelerate the spoilage of fruits. When buying a large amount of fruits at one time, there is a worry that they will go bad if they are not eaten in time, so it is necessary to understand the correct preservation method of fruits at this time. Different fruits have different preservation methods, and it is not only solved by putting them in the refrigerator.

There are many methods of fruit preservation

The following are several references.

1. For fruits with a particularly short shelf life, which may rot within a day, apply the cooling method. For example, lychees, add about 10 grams of salt to a basin of water, soak for a while then dry, put it into a fruit preservation bag, put it into the freezing layer at zero degrees, then take it out, and let it thaw naturally at room temperature. It is actually not recommended to put lychees in the preservation cabinet, reminds everyone. It is best to store them in the freezing layer at a temperature below zero, and then let them thaw naturally, because only in this way can the color, fragrance, and taste of lychees be effectively preserved;

2. For fruits with thick skin, apply the preservation bag insurance method. For example, watermelons, just cover the surface of the watermelon with a preservation film. In fact, this is not the correct way to preserve watermelons, because the watermelons put in the cake cabinet look very easy. But in fact, the熟食柜 will absorb the moisture from the watermelon skin, so even if it is covered with a preservation film, it is useless. Therefore, watermelon preservation should use the preservation film to wrap it completely, including the skin, and wrap it inside the preservation film. Then, the air should be squeezed out;

3. For fruits that are easily rotten when in contact with air, apply the cool and preservation bag insurance method. For example, bananas, the correct method should be to put bananas into a fruit preservation bag. It can be stored in a cool place. Here, the popular food reminder reminds everyone not to put bananas in the refrigerator.

Fruit preservatives

1. Citrus fruit preservative. Oranges, tangerines, pomelos, and other fruits often use sodium bicarbonate as preservative. Sodium bicarbonate is a white crystal or white powder. It is odorless and has a salty taste.

2. Pear fruit preservative. The commonly used preservative for pears is虎皮灵 (ethoxyquinoline), which belongs to antioxidant fruit preservative. It is difficult to dissolve in water and easily soluble in ethanol.

3. Apple fruit preservative. The commonly used preservative for apple preservation is metalaxyl. The original drug is colorless crystals, insoluble in water, soluble in organic solvents, and stable to acid and alkali.

4 Impact of fruit preservatives on the human body

Let’s take a look at the impact of the preservative on the human body.

Lychee preservative. The outer packaging of this preservative is similar to detergent, a light green soft plastic bottle, with the packaging paper printed with ‘Patent Product – Lychee Preservative’ and marked with the patent number. When the cap is unscrewed, a fragrance of lychee comes out, a colorless liquid. The journalist accidentally spilled a few drops on his hands while pouring, and it caused a slight tingling pain. The ingredients list shows that the product is a water food, pH regulator, etc., and in the precautions it is reminded that ‘This product is used to preserve the color of fresh lychees and red毛丹’, ‘May have corrosive effects on certain containers’ etc.