Can you eat pineapple with a black heart? Can you still eat pineapple with a black heart?

It is a kind of pineapple that has a pineapple called "pineapple black heart disease".

1. Characteristics of pineapple with black heart:

The disease initially appears as translucent, watery yellow-brown spots on the nearby fruit shafts of small fruits; With the further development of the disease, the number of brown color increases, the area expands, the color deepens, and the lesion spreads beyond the fruit eye. Along the axis of fruits, they are joined together; Finally, the center and flesh of the fruit are almost brown.

Second, prevention and control methods.

1) Choose disease-resistant varieties. At present, there are not many varieties planted, and even fewer disease-resistant varieties. Weinanyuan No. 5 is a fresh food species with good resistance, but the fruit shape is slightly smaller, and it is difficult to promote.

2) Cultivation control. Rational fertilization: apply sufficient basal fertilizer, mainly soil miscellaneous fertilizer, increase phosphorus and potassium fertilizer, control the amount of nitrogen fertilizer, and the commonly used ratio of nitrogen, phosphorus and potassium is 3 1 2.

Top dressing should be early to avoid concentrated application during the fruiting period; Strictly control the concentration of gibberellin and naphthalene acetic acid in fruit promotion; In the fruit enlargement period, some calcium chloride and other calcium fertilizers should be applied appropriately.

3) Proper harvesting and timely processing.

4) Scientific storage and transportation.

It is best not to eat pineapple black hearts because these places may have been contaminated with bacteria. Bacteria can cause harm to our body, leading to symptoms such as gastrointestinal problems and food poisoning. So, in order to protect your health, please do not eat black-hearted pineapples.

In order to keep the pineapple in its fresh and edible state, carefully check that the entire pineapple skin is smooth and free of damage, cracks, or scratches before purchasing. At the same time, you can also tell if the pineapple is expired by smelling the smell. A normal pineapple should have a fresh and sweet aroma, on the contrary, if you smell any musty or rancid smell, then this pineapple is no longer suitable for consumption.

To stay healthy, choose pineapples that are fresh and free of black spots and cracks, and pay attention to how they are stored, keeping them in a dry and ventilated place as much as possible.

You can't eat it. Eating it will cause diarrhea.

There are three main reasons why pineapples are blackened:

One reason is because the pineapple is ripe;

The second reason is that the pineapple is spoiled and spoiled;

Another reason may be the influence of weather and environment, which causes the flesh to turn black;

It is also possible that the black pineapple is due to black rot, which is a common and slowed pineapple storage disease, so it is not eaten.

The stall owner explained that the "black heart" proved that the pineapple was ripe, not only edible, but also very sweet. Subsequently, the reporter learned about some other fruit stores in the city, and most of the shopkeepers said that they had met "black-hearted" pineapples. A fruit shop owner said that in order to sell the "black-hearted" pineapples, he usually explains to customers that they are ripe, but he never eats those pineapples with "black-hearted".

Not recommended for consumption. Because the normal color of pineapple is golden yellow, if the pineapple has a black heart, it is spoiled, such a pineapple not only has a serious nutritional value, but also may produce some harmful substances, spoiled fruits will produce a lot of harmful bacteria, which is not good for human health after eating. It is also possible that the pineapple with the pineapple has a rotten heart, and this kind of pineapple is not suitable for eating.

There are two types of pineapple black hearts, if it is overripe and the heart is discolored, it can be eaten. If it is rotten and blackened, it cannot be eaten. Although the black heart caused by ripening can be eaten, the taste is not as good as that of fresh pineapple.

If the fruit heart is black caused by black rot, you can't eat it, otherwise you are prone to abdominal pain, diarrhea, nausea and vomiting and other food poisoning.

The method of pineapple preservation is to place it in a cool and dry place, avoid direct sunlight and moisture, so that the pineapple can be put for about 3-5 days.

The cut pineapple needs to be soaked in light salted water, drained of the excess water, and then packed in a fresh-keeping bowl, or sealed fresh-keeping bag and put in the refrigerator for freshness, which can be stored for about 2 days.

1.Pineapple black heart can not be eaten. The normal color of pineapples is golden yellow.

2.The appearance of a black heart in a pineapple is the same as the appearance of a red heart in a sugarcane, which is a phenomenon of fruit deterioration.

3.There will also be some toxins and fungi, and those who eat lightly will have diarrhea, and severe food poisoning may occur.

4.It is also possible that the pineapple has a rotten heart, which is directly related to the disease of this fruit and management, climate, etc.

5.Most of them are caused by too much rain during the growing season, and there is also a black heart in the wrong proportion of fertilizing elements.

6.This disease is generally not visible during the harvest period, and black hearts will appear after being cut and stored for a period of time, and this kind of pineapple is not suitable for consumption.

Extension: Pineapple (scientific name: Ananas Comosus) is one of the tropical fruits.

Fujian and Taiwan are called Wangli or Wanglai (ng-l i), Singapore and Malaysia are called pineapples, and mainland and Hong Kong are called pineapples. There are more than 70 varieties, one of the four famous fruits of Lingnan.

Pineapples are native to the Amazon basin of Brazil and Paraguay in South America, and were introduced to China from Brazil in the 16th century. It has now spread throughout the tropics.

1. Pineapple black heart can not be eaten.

The normal color of pineapple is golden yellow, and the pineapple has a black heart and a red heart in sugarcane, which belongs to the phenomenon of fruit deterioration, this kind of pineapple not only has a serious nutritional value, but also has some toxins and fungi, and those who eat lightly have diarrhea, and food poisoning may occur in severe cases.

2. If there is a violent bump in the process of transportation and preservation of pineapple, the flesh of the pineapple will be traumatized, and it will slowly rot and appear black; In addition, if the temperature of the pineapple is too high and it is left for too long during the preservation process, the central area will also be blackened, which is also a sign of pineapple spoilage.

Pineapple black heart may also be pineapple suffering from rotten heart disease, this fruit lesion and management, climate, etc. are directly related, mostly due to excessive rain during the growth period, and the proportion of fertilization elements is not right, which shirt will also appear black, this disease is generally not seen in the harvest period, after cutting down the storage for a period of time, there will be a black heart, this pineapple is not suitable for consumption.

31.Look: The overall appearance of the pineapple is complete, the skin is golden yellow, and the leaves are full and green, which is fresh and high-quality pineapple. Generally, there are no black hearts.

2.Smell: Pineapple has a strong fruity aroma, and the black-hearted pineapple has some rotten smell, and careful sniffing can still distinguish between good and bad.

3.Cutting: The most reliable way to buy pineapple is to cut it and see it, it is clear at a glance, and the black-hearted ones can't be eaten if they don't buy it.

41.Pineapples are suitable for fresh consumption, and pineapples that have changed color after a long time should not be eaten to avoid food poisoning.

2.Pineapple contains a lot of vegetable acid, and it is advisable to eat more if it is not slow, so as to avoid ulcers in the mouth and gastrointestinal tract.

3.Pineapple is an allergic food, containing glycosides and pineapple prions have allergogenic properties, therefore, allergic constitution should not eat, poor people should not eat more, so as not to cause allergies.