What s the matter with the white appearance of the longan that I bought

It's something like freshness, when it encounters cold air, it will turn white, which plays a protective role on the inside, and the white things on the outside can't be eaten, but the inside is edible.

Longan is warm and sweet, beneficial to the heart and spleen, replenishes qi and blood, has a good nourishing and tonic effect, and can be used for insomnia, forgetfulness, palpitations, dizziness and other symptoms caused by heart and spleen deficiency and lack of qi and blood. Longan can be weak or mentally debilitated after illness. It is also suitable for women to supplement after childbirth.

But it's best not to eat it during pregnancy. Li Shizhen recorded in the "Compendium of Materia Medica":"Lychee is the most expensive food, and longan is good"。

Respect for longan.

The effects and functions of longan are mainly as follows:

1. Nourish qi and replenish blood. Longan is rich in glucose, sucrose, protein, vitamin A, C and other nutrients, and the iron content is also relatively high, which can improve heat and supplement nutrition at the same time, and can promote hemoglobin regeneration to replenish blood, which has a good nourishing and nourishing effect. It has an auxiliary effect on people who need to recuperate after illness and have weak constitution.

2. Calm your mind. Longan can improve cardiovascular circulation, stabilize mental condition, and relieve stress and tension.

That's normal, when on the tree, there will be some white insects attached to the longan, and the pomegranate ones will also be like this, not afraid.

There should be something. But wash it and you'll be fine. The details are straightforward.

It's going to break, so it's better not to buy that next time.

There should be something. But wash it and you'll be fine.

It may be that it has been put for a long time so it has deteriorated, and the white one on it is estimated to be mildew, which has been broken and can no longer be eaten, or it may be because there are small insects laying eggs on the surface when the longan grows, so there will also be white things, if this is the case, the flesh is not affected, then it can be eaten, and the mold will affect the pulp.

Users can peel off the longan to see, don't eat it if it smells, fresh longan is to be stored in the refrigerator freezer, which can prevent mold from multiplying, or put the longan in a cardboard box, put it in a cool and dry place, but still eat it in time, don't pile them all together.

Precautions for the preservation of fresh longan

1. Longan, also known as longan, fresh longan is sealed in a fresh-keeping bag and put in the refrigerator, not in the freezer in the refrigerator, just in the refrigerator. Remember to eat fresh longan as soon as possible to prevent it from spoiling.

2. You can take the fresh longan to dry and store it. Sun-dried longan is preserved for a long time, and it will also have a unique flavor.

3. The sun-dried longan should be placed in a box, covered with plastic, and then placed in a cool place, and should be checked frequently to prevent mold and insect moth.

4. Fresh longan is the fresher the better, so you should eat it as soon as possible after buying it, even if you can put it in the refrigerator for a few days, but the taste has changed.

The white thing of the longan epidermis is mold.

If the surface of the longan is whitish, it is recommended not to eat it. The main consideration is moldy, moldy food will not only be poisoned after eating, but also have a serious impact on health, and there will be diarrhea, so any food as long as it is moldy can not be eaten, in terms of diet, it is recommended that you try to eat some fresh fruits.

The longan that I bought home and left it for almost two days will have a layer of white ash and ash to see if it is still edible. I believe that everyone's heart will be uneasy, worried about whether pesticides have been used. In fact, in this situation, mildew is most likely.

Longan has a high sugar content, and in a humid and warm environment, it will ferment after a period of time, and it is easy to produce mold to attach to the peel during the fermentation process.

Precautions for longan.

Longan is a common tropical fruit.

The taste is sweet, the smell is fragrant, and the nutrition is rich, but it should not be eaten too much, because the nature of longan is warm, if a large amount of longan is eaten, it may exacerbate the heat and dryness in the human body, which is easy to cause a series of fire reactions, such as: sore throat, nosebleeds, mouth ulcers.

For sores on the mouth and tongue, it is generally recommended to eat about 20 longans a day.

Diabetic patients should eat with caution: Diabetes is a group with high blood sugar.

Metabolic diseases are characterized by sugar intake in their daily diet, and longan has a sweet taste, which contains more fructose and glucose.

If diabetic patients eat more longan, it is likely to lead to an increase in blood sugar levels in the body, which is not only not conducive to the control of blood sugar, but also may induce diabetic complications in severe cases.

Once hoarfrost appears on the shell of the longan, it means that the longan may have begun to mold, and you can't continue to eat it if you like this kind of longan, because a large number of bacteria have grown in the longan, and it will cause discomfort if you continue to eat it. In addition, if there is a moldy longan like this, it will often smell unpleasant.

When buying a longan, first look at its shape. The longan particles are large, the shell color is yellow-brown, and the shell surface is smooth, thin and brittle. Because of its thick flesh and small gap between the meat and the shell, the longan does not make a sound when shaken.

If the longan makes a noise when it is shaken, it is not good for the longan to have less core. Pick a grain of longan and peel it off to taste, the longan is yellow and bright, crisp and glutinous, and the taste is strong and sweet.

Do not wash it after you buy it, store it directly in the refrigerator, and it can be stored for 2 to 3 days. Longan is high in sugar and is prone to mold and insects, so it is best to refrigerate it completely after sealing it, or keep it in a cool and dry place.

1. The white color of the longan may be that in the process of poor growth, there are some small insects laying eggs on the surface of the longan, so that such a phenomenon occurs; It may also be due to improper storage of longan, and some mold grows on its surface, and mold grows and multiplies on it, and there is a hail bond with white hair.

2 Subject to availability.

If it is because of the small insects laying eggs on its surface, the white color is still edible, and it does not affect the flesh of the fruit can still be eaten, it is recommended to pinch the longan with your hands before eating to see if it is soft, if the texture is hard, it means that it has not deteriorated, and it can be eaten; If the surface is moldy, it is likely to have invaded the flesh inside, you can peel it open to see or smell it, if there is a peculiar smell, or do not eat it.

31. Refrigerator preservation, fresh longan can be packed in a fresh-keeping bag and stored in the refrigerator compartment, which can inhibit the growth and reproduction of mold to a certain extent.

2. Or put it in a carton, spread it out, and store it in a dry and cool place, taking care not to pile it together.

3. Dried and preserved, after the fresh longan is dried, it becomes the commonly eaten dried longan, which has a long storage time, and can be stored in a dry and cool place or in the refrigerator.

41. Look: It is recommended to choose a slightly lighter color. If there are white spots on the surface or pedicle of Wang Qiao, it means that the flesh has begun to mold, and the more white mold in the shell, the more serious the moldy flesh.

And the skin should be spotless and clean. Some of them don't want to have mildew spots and cracks on the surface, which is easy to deteriorate.

2. Pinching, pinch the fruit with your fingers, the hard shell indicates that the fruit is relatively raw and unripe; Soft, elastic and full are characteristics of maturity; If it is only soft but not elastic, it means that it is overripe or about to deteriorate.

3. Peel off, peel off the longan, if the flesh is thick and soft, uniform shape, and transparent or translucent, whether there is more moisture, no shriveling, it means that it is good, if the flesh is white and opaque, it means that it is not fresh.

Longan epidermis white mold can not be eaten, longan is rich in water and carbohydrates, so it is easier to breed bacteria and mildew, the storage time is very short, the general normal fresh longan epidermis is earthy yellow, the surface has a slight protrusion, there will be no white things attached to it.

If there is a layer of white frost on the longan, but the flesh is relatively hard when pinched, there is no decay and reed, and there is no smell of decay and sourness, then it can still be eaten; However, if the longan meat has been soft and rotten, it proves that the flesh has been rotten, and it is not recommended to eat it, because it breeds a large number of harmful bacteria, and it will cause physical discomfort after eating.