What are the functions of salt?

Question 1: What does salt do? 20% salt is not only an indispensable condiment in people's daily life, but also one of the important substances to maintain normal metabolism of human body. For the purpose of salt, people generally only know the seasoning function of salt, but they don't know enough about its other uses. To this end, I studied the various uses of salt through interviews and consulting materials.

First, the use of salt water disinfection

Once, I was playing in my neighbor's house, and it happened that their pig was sick, so I invited a veterinarian. After seeing the pig, the veterinarian took out the syringe and injected it. When he tried to sterilize the needle, he found that he forgot to bring alcohol. He ordered the host family to take out some salt and dilute it into salt water. It turned out that he disinfected with salt water instead of alcohol. I asked him, "Can this salt water be disinfected?" He replied, "Of course, don't underestimate the salt water. In the past, when the troops lacked disinfectant, they used this salt water for disinfection. " His words reminded me of what I read in the book. During the War of Resistance against Japanese Aggression period, our Eighth Route Army troops often disinfected with salt water because of lack of medical care and medicine. When Dr. Bethune operated on the wounded, he also disinfected them with salt water.

Second, salt is an important substance to maintain human life.

Salt is closely related to maintaining normal metabolism and acid-base balance of body fluids, and is a necessary condition for maintaining human life. If the human body does not eat salt for several days in a row, it will be weak, the body's resistance will drop, and then various diseases will appear. For example, during the period of War of Resistance against Japanese Aggression, many Red Army troops were seriously affected by the lack of salt. Another example is the white-haired girl in the movie, because she only eats wild fruits in the mountains all the year round and lacks salt, which leads to white hair. In the movie "Sparkling Red Star", Pan Dongzi used all his wisdom to avoid the enemy's search for the guerrillas on the mountain, and finally skillfully transported the salt up the mountain.

Third, the medical use of salt.

(1) Normal saline prepared with distilled water and refined salt is often used to rescue critically ill patients with fluid loss and severe blood loss. (2) This physiological saline is also the most commonly used nutritional infusion in hospitals. (3) Atomizing and inhaling 1% to 2% saline solution can treat bronchitis. (4) Use a spoonful of salt, put it in the pot, fry it until it is brown, and take it with warm water to spit out the sputum and saliva in the stomach. (5) Catarrhal gastritis caused by food poisoning can be treated with salt. (6) gargling with salt water can prevent gum bleeding and strengthen teeth. (7) Drinking a cup of salt soup in the morning can cure the symptoms of tongue coating erosion caused by heart fire.

Fourth, other uses of salt.

(1) People often soak their hair with salt, so that it will not turn white and fall off easily, and the scalp will not itch. In order to prove this effect of salt, two classmates and I washed our hair with salt water several times in a row. Sure enough, the scalp is no longer so itchy and the hair loss is less. (2) Put the dyed fabric into the salt soup to foam, and the dyed color will be symmetrical and beautiful.

Five, the attention points of salt intake

(1) A person consumes about 2 grams of salt every day, which is equivalent. The more the better, because it will increase the burden on the kidneys and cause nephropathy, so patients with nephritis should eat as little salt as possible. (2) Due to clinical medical verification, the etiology of hypertension patients is often related to the kidney, so we should also control the intake of salt and eat light dishes.

In a word, salt has many uses and is good for people. However, things are divided into two parts. You can't eat more salt just because you are good to people, regardless of the objective reality, which has become an adverse reaction of some patients.

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Common sense of life-the use of salt

1, if you want to remove the oil on the blanket, you can use 1 part salt and 4 parts alcohol solution to clean it, and rub it vigorously when cleaning.

Degreasing oil will not hurt the blanket.

2. When the rubber-soled canvas shoes stink, sprinkle a little salt on the shoes to absorb sweat and deodorize. Newly bought foam rubber shoes

Soak in salt water for half a day before wearing, which is not easy to crack and durable.

The straw hat is old. Washing it with salt water can make it look brand new.

4. Soak the newly bought toothbrush in hot salt water for about half an hour and take it out, which can make the toothbrush durable.

5. Two cotton socks with similar colors, but not exactly the same, will be the same color if boiled in salt water 1 hour.

6. Soak the newly bought bath towel in salt water before use to prevent mildew.

7. Put the salt on the wet match. After a minute or two, the wet match will dry.

Washing bamboo and rattan with salt water can make them more beautiful, softer and more durable.

9. Wicker woven furniture is washed with a hard brush dipped in warm salt water and dried, which can prevent home ... >>

Question 2: What are the advantages and disadvantages of edible salt? Edible salt refers to the processed edible salt with sodium chloride as the main component obtained from seawater, underground rock (mineral) salt deposits and natural brine (salty) water, excluding low sodium salt. The main component of edible salt is sodium chloride (NaCl), and it also contains a small amount of water, impurities, iron, phosphorus, iodine and other elements.

Benefits: It is an essential trace element for human body, and the metabolism of human body needs the participation of salt. It can be said that without salt, a person's life is over. Of course, eating too much salt can also cause many diseases. Sodium chloride is abundant in seawater and natural salt lakes, and can be used to produce chlorine, hydrogen, hydrochloric acid, sodium hydroxide, chlorate, hypochlorite, bleaching powder and metallic sodium. It is an important chemical raw material. It can be used for seasoning food and curing fish and vegetables, as well as salting out soap and tanning leather. Highly refined sodium chloride can be made into physiological saline for clinical treatment and physiological experiments, such as sodium loss, water loss and blood loss. Sodium chloride can be prepared by concentrating crystallized seawater or natural salt lake or salt well water.

Disadvantages: Eating too much will increase blood pressure, increase the burden on the kidneys and damage the gastric mucosa. The mucosa of the stomach will secrete a layer of mucus, which will become an excellent protective film when coated on the mucosa. When the food we eat is too salty, this protective film will be destroyed, so that the gastric mucosa will be exposed to bittersweet * * *, and even carcinogens will come in. The high incidence of gastric cancer in high-salt consumption areas is probably the same reason.

Question 3: What effect does salt have on people's health? The salty taste of salt is produced by sodium ions, but the effect of salt on human body is not only seasoning, but also physiological needs such as maintaining osmotic pressure balance. If it is only salty, not any salty salt can replace it. Many salts are toxic to human body.

Salt is indispensable in people's life. The total amount of sodium ions contained in adults is about 60g, of which 80% exists in extracellular fluid, namely plasma and intercellular fluid. Chloride ion also mainly exists in extracellular fluid. The physiological functions of sodium ion and chloride ion are mainly as follows.

(1) Maintaining the osmotic pressure of extracellular fluid Sodium ion and chloride ion are the main ions to maintain the osmotic pressure of extracellular fluid, while potassium ion and hydrogen phosphate ion are the main ions to maintain the osmotic pressure of extracellular fluid.

The main ion of osmotic pressure, sodium ion accounts for more than 90% of the total cation outside the cell, and chloride ion accounts for about 70% of the total anion. Therefore, salt plays an important role in maintaining osmotic pressure and affects the flow direction of water in human body.

(2) Sodium bicarbonate, which is formed by sodium ions and bicarbonate ions, participates in regulating the acid-base balance in the body and has a buffering effect in the blood. At this time, chloride ion and bicarbonate ion also have a balance between plasma and red blood cells. When bicarbonate permeates from red blood cells, the number of anions in red blood cells decreases, and chloride ions enter red blood cells to maintain electric balance. or vice versa, Dallas to the auditorium

(3) Chloride ions are involved in the production of gastric acid in vivo. The gastric juice is strongly acidic, and the pH value is about 0.9 ~ 1.5. Its main components are pepsin, hydrochloric acid and mucus. The parietal cells in the gastric gland can secrete hydrochloric acid, and the cell wall can import HCO3- into the blood and secrete H into the gastric juice. At this time, Cl- enters the gastric juice from the blood through parietal cells to maintain the electric balance. This concentrated hydrochloric acid is because there is a mucous cell in the gland of the stomach, and the mucus secreted by it forms a mucous layer with a thickness of about (1 ~ 1.5) mm on the surface of the gastric mucosa, which is usually called the barrier of the gastric mucosa. Under the attack of acid, the gastric mucosa will not be digested by digestive enzymes and form ulcers. However, drinking alcohol will weaken the barrier function of gastric mucosa and often increase the possibility of causing gastric ulcer.

In addition, salt can also maintain the normal excitability of nerves and muscles. When a large amount of extracellular fluid is lost (such as massive bleeding and sweating) or in food

In the absence of salt, the content of sodium ions in the body decreases, and potassium ions enter the blood from cells, which will cause diseases such as thickening of blood, less urine and yellowing of skin.

Question 4: I deleted the files in the computer by mistake. How to restore them? You can use FinalData 2.0 Enterprise Edition for recovery.

There are many Chinese versions of software on the Internet, which are easy to find and easy to use.

Of course, the premise of data recovery is that you didn't write the data into the drive letter where the file was deleted by mistake.

Question 5: What are the nutrients of salt? Salt, also known as edible salt, is one of the most important substances for human survival and the most commonly used seasoning in cooking. The content of sodium chloride (chemical formula NaCl), the main chemical component of salt, is 99%. Potassium chloride is added to the salt produced in some areas to reduce the content of sodium chloride and the incidence of hypertension. At the same time, iodine is added to salt in most parts of the world to prevent iodine deficiency. Iodized salt is called iodized salt.

Question 6: What are the uses of daily edible salt? Edible salt can not lose weight, but can only play the role of disinfection and sterilization; If you eat too much, it will be harmful to your health. If you wash your face with salt water or take too many baths, your skin will age easily.

Edible salt has many uses in daily life. Jeans fade easily when they are dirty. They can be soaked in strong salt water for several hours (cold water is needed) and then washed with soap, so that the color will not fade.

When washing clothes with a washing machine, if there is too much foam, you can sprinkle some salt on the foam to reduce the foam.

Washing mosquito nets with a little salt can avoid bedbugs.

Towels will harden and smell strange if used for a long time. It is best to rub it with salt water to remove the odor and not stick to your hands.

Wiping sweat with a towel in summer will become sticky. If you wipe it with salt first and then rinse it with water, it will be as clean as new.

If the cotton cloth is burnt, wipe it with a little refined salt at the burnt place, and the burnt mark will recede.

Cotton cloth is yellow. You can add salt and baking soda and boil it in water for a few hours, and the yellow will fade.

When the clothes are stained with grass stains, you can soak them in salt water (water and salt) and rub them gently to remove the grass stains.

Clothes with sweat stains can be soaked in% salt water, rubbed for a few minutes, then washed with water and then washed with soap to remove sweat stains.

Dyeing clothes with a little salt can make them colorful.

Clothes stained with ink are difficult to wash. You can rub them with water first, then mix a few grains of rice with salt, rub them where there is ink, and then rub them with water. If you can't clean it once, you can wash it several times to remove the ink.

Jeans are easy to fade when they are dirty, but they can be soaked in strong salt water for several hours (cold water is needed) and then washed with soap, so that the color will not fade.

Clothes are stained with oil, and can be washed very clean with alkaline water dissolved with salt.

When washing clothes, sprinkle some fine salt powder on the neckline, and the stains will be easily removed.

In order to prevent colored clothes from fading, clothes can be soaked in warm salt water for a while before washing, which can prevent fading.

If you get wine stains on your clothes, you can sprinkle some salt immediately and wash them as usual after an hour. If there are rust stains on clothes, you can cover the stains with salt first, then soak them in white vinegar for an hour and then wash them as usual.

Crushing carrots and mixing them with salt can wipe the blood off clothes.

The salt water melted. Frozen fish and chicken taken out of the freezer can be quickly thawed in salt water and kept fresh and tender.

Dirt has accumulated on dishes and cups, so it is very effective to scrub with salt, tea residue or vinegar.

Soak the chopping block in salt water. The newly bought wooden chopping block was soaked in salt water with a concentration of% for two or three days, and then it was not easy to dry. After each use, first scrape the chopping board clean with a kitchen knife, then rinse the residue on the chopping board with hot water, and finally apply a little salt, which can not only sterilize, but also prevent the chopping board from cracking.

Cook dishes with salt water. Newly bought glasses and plates can be boiled in salt water first, and then they won't break easily.

Salt and vinegar wipe the tiles. If there are brown iron rust spots on white tiles or ceramic bathtubs, they can be scrubbed with a mixture of salt and vinegar.

Want to make your own air freshener? Cut half an orange, eat up the orange meat, and then fill the semi-circular orange peel with salt, which will slowly release the fragrance of orange and become a cheap and good air freshener.

If you want to clean rusty scissors or other ironware, you can add two teaspoons of salt and one teaspoon of lemon juice, apply it to the rust, and then wipe it with a dry cloth.

Newly bought * * *, if you want to wear it, you can wash it with water first, soak it in salt water for three hours after drying naturally, then wash it with cold water and dry it naturally.

Put some salt in the newly bought wok and fry it again before using it. When the salt is about to burn, pour out the salt and remove the iron smell from the pot.

Salt water deodorizing paint. Newly painted walls or furniture will give off a strong smell of paint. You can put two pots of cold salt water on the floor, and the smell of paint will disappear in a day or two.

The chopping block smells fishy, so you can scrub it with rice washing water dipped in a little salt. Then wash with hot water to remove the odor.

If you want to remove the oil stains from the blanket, you can use a solution of salt and alcohol to clean it, and rub it vigorously when cleaning, so as to remove the oil stains without hurting the blanket.

When rubber-soled canvas shoes stink, sprinkle a little salt on them to absorb sweat and deodorize. Newly bought foam rubber shoes

Soak in salt water for half a day before wearing, which is not easy to crack and durable.

The straw hat is old. Washing it with salt water can make it look brand new.

Soak the newly bought toothbrush in hot salt water for about half an hour and take it out, which can make the toothbrush durable.

Two cotton socks with similar colors but not exactly the same will be the same color if they are boiled in salt water for several hours.

Soak the newly bought bath towel in salt water before use to prevent mildew.

Wet fire ... >>

Question 7: What are the uses of salt in life? You'd better give an example. 1. Water the flowers. In order to make the flowers bloom more brightly, just pour a little salt water into the flowerpot.

2。 Washing chilblain with salt water can relieve itching.

3. Drinking a glass of light salt water in the morning is helpful for defecation. .

4。 Putting salt water on scalded skin can relieve the pain.

When taking a bath, put some salt in the water to treat skin diseases.

When frying food, put a little salt in the oil pan so that the oil won't spill.

When you boil a cracked egg, put some salt in the water so that protein won't run out.

Mash carrots, mix some salt, and wipe the blood from clothes.

In order to prevent clothes from fading when washing clothes, you can put some salt in silly water.

10 Glass or porcelain bowls cooked with salt water should not be fragile.

1 1 Black spots on bronzes can be erased with salt.

12 You can put some salt on your face and feet.

13 cook noodles, cook hot pot and do chemical experiments ~ ~? Only unexpected, not impossible, boldly use salt.

Question 8: What does salt do? Salt is not only an indispensable condiment in people's diet, but also an indispensable substance for human body. Its main component is sodium chloride, which is a neutral inorganic salt. It is salty in taste and cold in nature, and enters the stomach, kidney and large intestine. Has the effects of clearing away heat and toxic materials, cooling blood, moistening dryness, invigorating kidney, relaxing bowels, killing parasites, diminishing inflammation, inducing vomiting and stopping diarrhea.

From the physiological point of view, salt is of great significance for maintaining human health:

Salt can help the human body digest food. The salty taste of salt can improve people's taste and increase oral saliva secretion, thus increasing appetite and improving food digestibility.

Salt can participate in body fluid metabolism. Salt is an important component of body fluids. People who work in high temperature sweat too much and need to supplement their drinks. People with excessive vomiting and diarrhea should be given normal saline; People with excessive blood loss should also drink warm salt water urgently, because salt can maintain the osmotic pressure and acid-base balance of the human body.

Salt can sterilize. "Li Xin" says: When a chicken crows at first, it is salted. Washing teeth with salt can clean, fix and disinfect teeth. Washing the wound with salt water can sterilize and prevent infection. Hot compress with salt rice paste can stop joint swelling and pain. Meat and vegetables salted with salt can be preserved and disinfected for easy storage.

Salt can guide drugs into the kidneys. Salty drugs that enter the kidney and tonify the kidney should be sent with salt soup, so that they can be classified as kidney meridians and strengthen the kidney.

Salt can bring fire back to RMB. "Chongqing Tang anthology" says: salt is the most salty ... it is undoubtedly a fire. However, although the smell belongs to fire, it goes down. If the fire is weak, it will drop after drinking light salt water soup. Therefore, it is a wonderful work that will bring fire back to the yuan. If vomiting occurs, it can be cured by soaking in salt and brine.

After the salt is ionized in solution or saliva, its cation is absorbed by carboxyl or phosphate groups in protein molecules on the taste cell membrane, resulting in salty taste. The salinity of various neutral inorganic salts is partly determined by their ions dissolved in water. Both cations and anions have effects on the formation of salty taste, but mainly depend on cations, while anions affect the strength of salty taste and the generation of other side tastes.

Salt has a high permeability in solution, and you can taste the juice in raw materials when cooking. Because it is a strong electrolyte, it can improve the hydration ability of protein in raw materials and denature part of protein. Therefore, the main function of salt in cooking is to enhance the flavor and seasoning of dishes.

Salt can make dishes fresh and delicious.

Cooking materials such as fish, meat, poultry, livestock, eggs, fungi and vegetables all contain some amino acids, such as nucleotide, succinic acid and inosinic acid. All of them are umami, but these amino acids themselves are not obvious. Only by combining with sodium ions to form sodium salts can they show obvious umami. How delicious the food is, it is difficult to improve the taste and freshness without salt.

Salt can make meat tender and highlight flavor.

In the initial cooking process, you must use a certain amount of salt before you can taste the dishes. This is not only the processing technology in cooking, but also an important procedure to keep the dishes fresh and delicious. When sizing fried meat slices, add a small amount of water to the meat slices, and then add a small amount of salt. Due to the action of salt, the sliced meat is full of water. Then add water starch and egg white to mix, and wrap the meat slices that have absorbed enough water tightly. After this sizing, the dishes made are much more delicate than before.

Salt can reconcile five flavors.

Salty taste can lead to sweet taste. Adding a certain proportion of salt to pure sugar solution is sweeter than pure sugar water and tastes mellow and delicious. Because acid has a great influence on the taste, people will always find it difficult to swallow when they are jealous. If a proper amount of salt is added for seasoning, the compound taste of hot and sour juice, ginger juice and sweet and sour juice can be more harmonious, and the taste is mellow and long. This is because salt has strong penetration and binding ability, which makes it used with other flavors. In fact, without salt as the basic flavor, any compound flavor can't be modulated. There is little salt in sweet and sour pork tenderloin, and the sour taste of sugar makes it difficult to swallow, even disgusting; Add salt, adjust sugar and acid with salt, inhibit odor, enhance flavor, and the flavor is better.

Salt can be polymerized and solidified.

If it feels thin, or the minced meat is separated from water, add a proper amount of salt and stir hard in one direction, and the meat will soon become dry and thick. This is because the low concentration of salt can improve the hydration ability of protein, reduce the free water in the paste, firmly combine with protein, and increase the thickness of the hydration layer, thus making it sticky.

Because salt can coagulate and denature protein, it is forbidden to put salt before cooking milk soup. Otherwise, the soup won't be thick with milk.

When to put salt varies with the material. This is the general principle of rational use of salt in cooking.

Cooking salt depends on the dishes. Dry & dry > & gt

Question 9: How many kinds of salt are there and what are their functions? Fluorine is mainly absorbed in the stomach, mainly distributed in bone marrow and teeth, which can prevent dental caries and senile osteoporosis. Low fluoride not only affects teeth, but also affects bones. However, excessive intake of fluoride will cause fluorosis, resulting in "dental plaque", and long-term excessive intake of fluoride will also cause damage to bones and kidneys. Each person's daily intake of 2.3 ~ 3. 1 mg of fluoride can fully meet the needs of the human body for one day. Fluoride intake from daily diet and drinking water can completely meet this demand. According to the national standard, the fluorine content in fluoride salt should be controlled at100 30 mg/kg, and the fluorine content should be clearly marked on the packaging bag; The fluorine content of common edible salt must be controlled below 5.0mg/kg.

Nutritional fortified salt generally refers to the edible salt in which nutritional fortifier is added to common edible salt. For example, calcium fortified salt is to add calcium lactate, active calcium, calcium phosphate, biological calcium and other raw materials to ordinary edible salt. Because the acidity and solubility of various fortifiers are different, adding them to edible salt will have a great influence on the acidity and solubility of edible salt. The pH value of common edible salt is generally in the range of 5~6, which is weakly acidic and easily soluble in water. However, due to the addition of nutritional fortifiers, the pH value of some nutritional fortified salts will rise to 12, which is strongly alkaline and extremely difficult to dissolve in water. Too much alkaline salt will do some harm to the stomach. Insoluble in water, it is difficult for human body to absorb sodium ions and chloride ions in edible salt.

In order to eliminate iodine deficiency disorders, the state gives priority to ensuring that residents in iodine-deficient areas eat iodized salt. For hyperthyroidism patients, thyroiditis patients and very few people, it is not suitable for eating iodized salt. Residents in areas with high iodine content who are unfit to eat iodized salt for treating diseases shall purchase non-iodized salt from local salt companies on the strength of certificates issued by medical institutions designated by local people's health administrative departments at the county level.

Consumers can choose what kind of edible salt according to their own needs, and they should read the identification label on the package clearly when buying. Don't blindly think that "spending too much" is good edible salt.

Question 10: What does salt do? 20% salt is not only an indispensable condiment in people's daily life, but also one of the important substances to maintain normal metabolism of human body. For the purpose of salt, people generally only know the seasoning function of salt, but they don't know enough about its other uses. To this end, I studied the various uses of salt through interviews and consulting materials.