Do apples really prevent potatoes from sprouting

Knowledge: Apples, like bananas, release ethylene gas, which can effectively inhibit the germination of potatoes although ethylene has a ripening effect on many fruits.

Since the state announced the staple food of potatoes, many people's feelings about potatoes have begun to become complicated, especially ** people. When I eat potatoes, am I eating a vegetable or a staple food? Actually, this question is not the most troublesome, the most puzzling thing is such a rumor:

Potatoes can no longer be eaten after they have been left for too long to sprout or turn green, but they will not sprout as long as the potatoes and apples are put together. So, is that really the case?

In fact, potatoes turn green because of the chlorophyll they contain, and the really toxic is solanine. When potatoes are stored, under light conditions, they produce both chlorophyll and solanine, which makes people mistakenly think that the place that turns green is poisonous, but what is really toxic is not its green color, but solanine. Normal potatoes also contain solanine, but at a lower level, about 10 mg of solanine per 100 grams of potatoes.

Because solanine can be soluble in water and is easy to decompose after encountering vinegar or heating, there is no need to worry about poisoning when eating potatoes normally. <>

However, when the potatoes sprout or turn green, their solanine content increases dramatically, which is not something that can be handled by ordinary cooking methods. For example, the content of solanine in sprouted potatoes can be increased by 20 times from normal to normal; The solanine content in moldy potatoes is even higher, increasing by 145 460 times. Because excessive intake of solanine may endanger human life, it is better to throw away the sprouted or green potatoes as soon as possible, and never cut off the sprouted or green parts in order to save food and then continue to eat, where a large amount of solanine has also been accumulated.

As for the claim that potatoes and apples will not sprout when put together, it is because apples, like bananas, release ethylene gas, which can effectively inhibit the germination rate of potatoes, although ethylene has the effect of ripening many fruits. Therefore, if you want to store potatoes for a long time, you can indeed consider sealing a small amount of apples and potatoes together in a plastic bag, and then putting them in the refrigerator compartment, which is protected from light and low temperature to delay the germination of potatoes. However, the ethylene released by apples can only delay the germination of potatoes, but can not completely prevent their germination, and the use of the above methods can generally successfully preserve potatoes for about 2 months, and no longer will work.

After all, potatoes are not a rare thing these days, as long as they are properly prepared at home, there is no need to store them according to the standard of "preparing for war and preparing for famine", ......<

Tips: Solanine, also known as potato toxin (also found in eggplant and unripe tomatoes), is a toxic glycoside alkaloid that is soluble in water and corrosive and hemolytic. Symptoms of poisoning include vomiting, diarrhoea, and neurotoxicity, and in severe cases, death.

Some case analyses suggest that the toxic dose of solanine can be as low as 2-5 mg per kilogram of body weight, while a dose of 3-6 mg per kilogram of body weight can be fatal.

There are many people who like to eat potatoes, and potatoes are also very nutritious, but how to keep them fresh is a question that everyone has been thinking about. Sprouted potatoes not only consume the nutrients of potatoes, but also produce a large amount of toxins at the roots of potato sprouts, and people are prone to abdominal pain and diarrhea if they eat them. I've got some tips for you to follow.

1. We can put potatoes in a low-temperature, ventilated and dry place, and avoid sunlight at the same time, which can prolong the storage period of potatoes.

2. You can put an apple in the potato, and the ethylene gas produced by the apple can hinder the development of the potato, so it can delay the development time of the potato.

3. We put the potatoes into straw bags, sacks or boxes with pad paper, sprinkle some dry sand on them, and store them in a cool and dry place to delay the germination of potatoes.

4. Potatoes can not be stacked so that the potatoes can breathe, and the potatoes with scars and damage must be picked out when putting potatoes.

5. The potatoes can be refrigerated, and the temperature is controlled at 3 degrees to 5 degrees Celsius, and the relative humidity reaches 85 to 90 percent.

Control the temperature below 5, or keep it dry.

In the north, potatoes are mostly piled up in cellars, and rice is piled high, and generally not piled up. When the temperature in the cellar is higher than 5 and the humidity is greater than 85, the potatoes are easy to sprout. Potato germination mostly occurs in March and April, when the cellar temperature is easily affected by the external high temperature and rises, so it is necessary to strictly control the influence of external temperature to prolong the forced dormancy period of potatoes.

The method is to close the cellar door during the day to prevent hot air from entering the cellar, and strengthen ventilation or pile up heat dissipation at night, so that the cellar temperature is kept at 1 3 and the humidity is 80 85.

In order to prevent potatoes from sprouting, methyl naphthalene acetate and cyanosine can be treated. The method is that per 10,000 catties of potatoes, 150 grams of methyl naphthalene acetate with a content of 98 are dissolved in 300 grams of acetone, and then mixed with 20 30 catties of fine soil, evenly sprinkled in the pile of potatoes in the cellar, and the germination effect is inhibited by 90.

There are several main ways to prevent potatoes from sprouting:

1. Put the potatoes into a sack or a basket lined with paper, sprinkle a layer of dry sand on top, and store them in a cool and dry place.

2. Put the potatoes in the box, and put a few unripe apples in the box, the gas emitted by the apples during the ripening process (in fact, it is ethylene, ethylene will inhibit the cells at the eyes of the potato sprouts to produce auxin, auxin accumulation is not enough concentration, and it will naturally not germinate. ) has the effect of hindering the development of potatoes.

3. Potatoes can not be stacked so that potatoes can undergo aerobic respiration, and the point is to pick out scarred and damaged potatoes when putting potatoes.

When the sprouts of potatoes do not grow large, they can still be eaten after a certain amount of processing. Because toxins are formed due to the germination of buds, the accumulation of toxins is centered on the bud eye, and when the bud is still small, the toxin has not yet spread, as long as a piece of the bud and bud eye is dug out. In potatoes with slightly larger buds, the toxin has already spread, and the site of diffusion is the cortex first, so for this kind of potato, in addition to digging a piece of the bud eye, a piece should also be cut off near it.

Tips to prevent potatoes from sprouting, it's okay to leave it for a long time, so let's take a look.

The guy replied very well, and he said that you can buy it at the place where the chemical is sold in the city. As for the dehumidifier, it is cheaper, and buying two of them in the factory warehouse to remove moisture can reduce the proportion of rotten soil tofu.

Potatoes and apples do not sprout when put together.

Ripe apples release a plant hormone.

Ethylene, this hormone promotes the ripening of plant fruits and the shedding of organs. When potatoes and apples are placed together, the ethylene produced by the apples inhibits the production of auxin by the cells in the eyes of the potato sprouts.

If auxin does not accumulate in sufficient concentration, the potatoes will naturally not sprout.

The history of potatoes

Potatoes are native to the Andes.

and the coastal mountains of Chile, where the local Indians used it as their main food, and it was later spread around the world by European explorers and colonists. In 1536, it was introduced to Europe by Spanish sailors, and in 1565 the potato was introduced to England and Ireland.

It was introduced to France in 1785 by the pharmacist Farmonche.

For a long time, it was used as a symbol of fashion and nobility in France because the Queen of France wore its flowers on her head as a decoration.

Contemporary British agronomist Hawkes.

Hawkes, in his book The Scientific Basis and History of Potato Improvement, says that the potato was introduced to India around the 17th century, and a little earlier to China. Japanese potatoes were brought to the port of Nagasaki by the Dutch in 1598.

There are four ways to prevent potatoes from sprouting:

Clause. 1. Preservation method in the dark.

Plants cannot grow without light, temperature and water, and potatoes are no exception, so we need to prevent potatoes from sprouting and block these necessary factors. First of all, we can choose to preserve the potatoes in the dark. First of all, we put the potatoes in a plastic bag, tie it tightly, isolate the air, and then put the plastic bag into a black bag, and then put it in a cool and ventilated place to store it, without light, the potatoes can not photosynthesize, and they will not sprout.

Clause. Second, the apple preservation method.

There is a substance that can be released in apples called ethylene, which can ripen fruits, and at the same time, ethylene can inhibit the growth of plant buds, so we can use the ethylene released in apples to prevent potatoes from sprouting. We choose a plastic bag, put potatoes in it, put an apple in it, then tie the plastic bag tightly, and then put it in a cool, ventilated and dark place to preserve. After the potatoes are eaten, we can eat the apples and it doesn't matter what.

Clause. 3. Baking soda preservation method.

Baking soda is a seasoning in our kitchen and is often used in our daily lives. Baking soda has a strong adsorption effect, so we can take advantage of this property of baking soda to preserve potatoes. Take a piece of paper, sprinkle in an appropriate amount of baking soda, then wrap it, put it in a plastic bag with the potatoes, and tie it tightly, baking soda can keep the potatoes in a dry environment, without moisture, and you can inhibit the growth of potato sprouts.

To be on the safe side, we store the potatoes in a cool, ventilated and dark environment.

Clause. Fourth, the refrigerator preservation method.

Speaking of light, moisture, and another factor is temperature, which is also an important factor for potato sprouts. Therefore, we can choose to place the potatoes in a low temperature environment, thus inhibiting their long shoots. In general, we have limited space in our refrigerators, and this method of storage is only suitable for relatively small amounts of potatoes.

1. Apple preservation.

Buy some fresh potatoes, you must pay attention when buying potatoes, buy potatoes that are intact, if they are damaged, they are easy to rot when preserved. Prepare a black plastic bag, remembering that the potatoes should not be exposed to light, otherwise they will turn blue and solanine will multiply. Put the potatoes in a black plastic bag, add an apple, squeeze the air out of the bag, then tie it tightly and place it in a cool and ventilated place.

Preserve the potatoes in this way, and they will not spoil for 3 months, just like when you first bought them.

2. Keep it in a carton.

Prepare some old newspapers, a cardboard box, buy a bag of baking soda, spread the old newspaper in the cardboard box, then sprinkle some baking soda, put the potatoes on top of the old newspaper, spread another layer of old newspaper, sprinkle baking soda, and repeat the operation to fill the carton.

Then put the carton in a cool and ventilated place to preserve, this method can keep the potatoes dry, will not sprout, will not be green, put for half a year will not change, especially fresh.

3. Keep plastic wrap.

Just prepare a lot of plastic wrap, divide the potatoes according to the amount, such as 2 or 3 in a meal, wrap them in plastic wrap, don't leak, and put them in a cool and ventilated place after wrapping. Because plastic wrap has the effect of blocking air and moisture, it can keep the potatoes fresh, so that the potatoes can be stored for several months.

When preserving potatoes, keep in mind 3 conditions, namely protection from light, dryness, and coolness, so that the potatoes do not sprout and do not rot and spoil. If you also like to eat potatoes, quickly collect these 3 methods, and you will definitely be able to use them in the future.

In the season when potatoes are on the market in large quantities, many families will store a large number of potatoes, mainly because potatoes are a food that is not easy to mold and spoil, so the storage method is relatively simple. But everyone should know that if you eat sprouted potatoes by mistake, it can cause food poisoning, mainly due to the growth of solanine in potatoes after they are sprouted. So how do you prevent potatoes from sprouting when storing them?

1. Bag storage: If you eat 50 100 kg of potatoes in winter, it is more suitable for those who live in the building, put the potatoes in a plastic bag, and put 10 cm of damp black soil in the mouth of the bag, which is not dry, fresh and spicy.

2. Box storage: box storage is suitable for the city, the carton or large wooden box sits in the corner of the wall, the bottom of the box is padded with 15 cm high wood or brick to prevent the bottom of the box from being wet, the potatoes are loaded into the box, and the top cover is 15 cm thick damp black soil, which keeps it fresh, no spicy, and the buds are slow.

3. Outdoor storage: dig a deep cellar outdoors, the length and width are determined according to the number of storage, the bottom of the cellar is 2 cm thick ash, disinfected, remove the odor of the soil in the cellar, install the cellar cover, leave the cellar door, and put the potatoes into the cellar. In late October, potatoes are covered with 15 cm thick damp black soil, moisturizing, not frozen, if the cellar is shallow, the top cover is 20 30 cm thick, the cellar door is not easy to seal early, in early November, half of the cellar cover is left in half, ventilated.

If the temperature in the cellar is high, it is easy to rot, and if the temperature is low, it is easy to freeze, so all of them are sealed in early December. Therefore, it is essential to master the temperature, which is the key.

4. Indoor storage: Store potatoes indoors, regardless of the size of the cellar, and cover the potatoes with 3 5 cm of damp black soil, so as to keep moisture, and the potatoes are not dry or frozen and not easy to germinate in spring.

5. Warehouse storage: not accustomed to digging a cellar or digging a cellar on water, according to the amount of storage capacity, build a billet or brick warehouse in the corner of the wall, and wipe the inside and outside of the warehouse with mud to prevent the potatoes from being cold and frozen due to the cold indoors. Put the potatoes in the warehouse and cover them with 5 cm of damp black soil, which plays a fresh and wilting effect.