Why are there black spots in the persimmon flesh What is the matter with the black spots in the pers

1. The flesh of the persimmon hides small black dots like sesame seeds, which are the skin of the seeds;

2. After continuous artificial improvement, the female flower can not conceive and bear fruit, and only leaves the seed skin in the pulp, but the granular seeds can still be found in the fruit of wild persimmon;

3. The diseases and pests of persimmon trees will also cause the fruit to have black flesh on the superficial surface, which is edible in small quantities and not edible in more quantities.

1. The flesh of the persimmon hides small black dots like sesame seeds, which are the skin of the seeds;

2. After continuous artificial improvement, the female flower can not conceive and bear fruit, and only leaves the seed skin in the flesh of Qinshan, but the seeds of the wild persimmon can still be found in the sedan chair-shaped seed;

3. The diseases and pests of the persimmon tree will also cause the superficial surface of the fruit to have black flesh, which is edible in small quantities, and not suitable for edible in large quantities.

There are black spots in persimmons because of the residue of seed coat, some persimmon varieties are artificially improved, so there will be black spots in the seed coat in the pulp, or it may be that after the persimmon is overripe, the tannin substances in it will be converted into sugar, making the flesh appear black brown, or it may be the black spots formed by oxidation reaction between the pulp and oxygen contact.

1. Seed coat residue

Some persimmon varieties have been artificially modified to increase the yield and taste, so that the female flowers can not conceive, thus leaving the seed coat in the persimmon pulp, so that there are small black dots in the middle of the persimmon.

2. Overmaturity

The black spots in the persimmon are because of over-ripeness, the persimmon contains a part of the tannin substance, which will gradually be converted into sugar after ripening, and the color of the flesh inside the persimmon will change after over-ripening, and many black spots will appear.

3. Oxidation reaction

The persimmon contains a large amount of iron in tannic acid, which will be exposed to the air after being cut and react with oxygen, causing the persimmon to turn brown, and it will also be accompanied by the appearance of small black spots.

It is a very common phenomenon that there are black spots inside the persimmon when it is cut, and many people will encounter this situation, it may be overripe, or it may oxidize and deteriorate, etc.

1. Seed coat shedding.

Crisp persimmons are artificially improved, so that the female flowers can not conceive and bear fruit, thus leaving a seed coat inside the pulp, so it is said that there are small black dots inside after cutting.

2. Overmaturity

Crisp persimmons contain a certain amount of tannin substances, and during the ripening process, the tannins will gradually be converted into sugar, and if they are overripe, then there is a risk that the flesh inside the crisp persimmon will appear dark brown, which is normal.

3. Oxidation should occur.

Crisp persimmons are rich in tannic acid and iron, which are exposed to the air after being cut, and these two substances undergo oxidation reaction together, so that the crisp persimmons are black-brown and have small black spots on the surface of the pulp.

4. Deterioration. The preservation time of crisp persimmons is not very long, if it is not stored properly, it is easy to rot and deteriorate, which will make the flesh grow black spots and reduce the edible value of crisp persimmons.

This should be "persimmon horn spot disease": it is one of the main diseases of persimmon trees. The pathogen spends the winter on the diseased leaves and pedicles with hyphae.

Conidia are formed in June and July of the following year for infestation. The disease is most severe during the rainy season. The disease causes early leaf and fruit drop, and can gradually weaken the tree, and is susceptible to frostbite in winter, which can lead to persimmon madness and eventually the failure of the harvest.

Prevention and control methods: 1. Eliminate the source of disease. In autumn, the fallen leaves are swept away, and the diseased stems on the trees are completely removed, and they should be burned intensively.

2. Pharmaceutical prevention and control. When the leaves germinate in early spring, about 10 days before flowering, and in July and August during the onset period, it is necessary to spray Bordeaux solution 2 3 times (concentration 1:4 5:

400 600) should focus on spraying the back of the blade evenly. Of course, if you can alternately spray Bordeaux liquid, 1000 times of zebsen zinc, 800 times carbendazim, and 1500 times of didilito, the control effect will be better.

There are several cases of blackening of persimmons, and if the blackening of persimmons is due to the seed coat left by itself, or the blackening of the flesh due to overripening and oxidation, this condition can be continued to be eaten. So, what's the deal with persimmons with black spots inside? How to eat persimmons without astringency?

Now, let's learn about it with me!

The black spots in persimmons are actually the degraded seeds in persimmons, and most of them are found in wild persimmons, and there are basically no black spots in cultivated persimmons. Persimmons have undergone continuous artificial improvement, so the female flowers of persimmons have lost their ability to conceive and bear fruit. Only the seed coat of the persimmon seeds is left in the pulp, so the persimmon appears intact, but there is a black part in the pulp.

The black spots on the persimmon will not be a problem and will have no effect on the body, so it can be eaten. In general, the smaller the black spots in the persimmon, the less astringent the persimmon will have.

Are persimmons hot or cool?

Persimmon is a cool fruit. Persimmons have a high nutritional value, and their vitamins and sugar are about 1-2 times higher than ordinary fruits. A person who eats 1 persimmon a day can basically meet half of the daily requirement of vitamin C.

Therefore, eating more persimmons is very beneficial to human health. In the case of not fasting, it is best to eat no more than 200 grams of persimmons each time. Persimmon contains a large amount of pectin and tannic acid, which can chemically react with gastric acid to form a gel block that is difficult to dissolve, thus forming gastric stones.

How to eat persimmons without astringency?

1. Warm water soaking method: soak the newly astringent persimmons in about 50 water for a day and night to remove the astringency.

2. Lime water soaking method: soak the astringent persimmons in lime water 1 5 (to be clarified). After a week, the astringency is cleared.

3. Spraying method: Put the astringent persimmons into a ceramic basin and spray with liquor (twice). After three or four days, the astringency can be removed.

4. Mixed packaging method: Mix astringent persimmons, ripe pears, ripe apples and other fruits in a container, seal them, and eliminate the astringency after one week.

Persimmon seeds. The black spots in the persimmon are the seeds of the persimmon before they are cultivated, and then after continuous artificial improvement, the female flowers of the persimmon lose the ability to conceive and bear seeds, leaving only the seed coat of the persimmon seeds in the pulp, and the persimmon is intact on the outside of the shirt, but there is a black part in the pulp, and there are many small black spots in the persimmon that are the seeds of the immature persimmon, which can be eaten.

Tips: Persimmon is high in sugar and contains pectin, the residue of persimmon remains between the teeth, plus the weak acidic tannin, it is easy to cause erosion of teeth and form caries, so it is advisable to drink a few sips of water after eating persimmons, or rinse your mouth in time. Although persimmons are delicious, be careful not to eat persimmons on an empty stomach when eating them without skin in your hands.

Because persimmons contain a large amount of tannic acid and pectin, they are easy to turn into hard lumps of different sizes under the action of gastric acid in an empty stomach; At the same time, do not eat with aquatic products that contain a lot of protein, because protein is easy to form gastric persimmon stones under the action of tannic acid; In addition, diabetics should not eat more.

Persimmon seeds. The black dots in the persimmon are the seeds of the persimmon before they are not cultivated, and then after continuous artificial improvement, the female flowers of the persimmon lose the ability to conceive and bear fruit, leaving only the seed coat of the persimmon seed in the pulp, and the persimmon appearance is intact, but there is a black part in the pulp, and there are many small black spots in the persimmon that are the immature seeds of the persimmon, which can be eaten. <

Persimmon seeds. The black spots in the persimmon are the seeds of the persimmon before they are cultivated, and then after continuous artificial improvement, the female flowers of the persimmon lose the ability to conceive and bear fruit, leaving only the seed coat of the persimmon seed in the pulp, and the appearance of the persimmon is intact, but there is a black part in the pulp, and there are many small black spots in the persimmon that are the seeds of the persimmon that are not ripe for the wild Zen brigade, which can be eaten.

Tips:Persimmon is high in sugar and contains pectin, the residual persimmon is sensitive between the teeth, plus the weak acidic tannic acid, it is easy to cause erosion of the teeth and form caries, so it is advisable to drink a few sips of water after eating persimmons, or rinse your mouth in time. Although persimmons are delicious, be careful not to eat them on an empty stomach.

Because persimmons contain a large amount of tannic acid and pectin, they are easy to turn into hard lumps of different sizes under the action of gastric acid in an empty stomach; At the same time, do not eat with water stool products that contain a lot of protein, because protein is easy to form gastric persimmon stones under the action of tannic acid; In addition, diabetics should not eat more.