The most rare thing is that milk is the best source of calcium for human body, and the ratio of calcium to phosphorus is very suitable, which is beneficial to the absorption of calcium. There are at least 100 complex species, and the main components are water, fat, phospholipids, protein, lactose and inorganic salts.
Every 100g milk contains the following nutrients: calories (54.00kcal), protein (3.00g), fat (3.20g), carbohydrate (3.4g), vitamin A (24.00g), thiamine (0.03mg) and riboflavin (0.65438+). Vitamin C( 1.00 mg), vitamin E(0.2 1 mg), calcium (104.00 mg), phosphorus (73.00 mg), sodium (37.20 mg) and magnesium (1/kl). Copper (0.02 mg), manganese (0.03 mg), potassium (109.00 mg) and cholesterol (15.00 mg). The main chemical components of general milk are as follows: milk (15 sheets) moisture: 87.5% fat: 3.5-4.2% protein: 2.8-3.4% lactose: 4.6-4.8% inorganic salt: 0.7%. There are 20 kinds of amino acids that make up human protein, 8 of which can't be synthesized by human body.
If the protein we eat contains all the essential amino acids, this protein is called total protein. Protein in milk is whole protein.
Inorganic salts in milk are also called minerals. Milk [1] contains cations such as Ca2+, Mg2+, K+ and Fe3+ and anions such as PO43-, SO42- and Cl-. In addition, there are trace elements I, Cu, Zn, Mn and so on.
Calcium in nature exists in a bound state. Only when it is passively absorbed by plants to form bioactive calcium can it be better absorbed and utilized by human body. Milk is rich in active calcium, which is one of the best sources of calcium in human body. 1 l fresh milk contains about1250mg of active calcium, ranking first among many foods, which is about 10 1 times of rice, 75 times of lean beef and10/0 times of lean pork.
Good absorption is especially critical for calcium supplementation. Therefore, the saying that "milk can supplement calcium" has its scientific reason.
[3] The chemical composition of milk (20 sheets) varies with the type, age, feeding mode, milk collection time, sanitary conditions and temperature. Every 1 00g of milk contains 0. 04mg of thiamine, 0.13mg of riboflavin, 0. 2mg of nicotinic acid,1mg of ascorbic acid and 140 international unit of vitamins.
Protein in milk is mainly phosphorus-containing protein, and also contains albumin and globulin. All three protein contain all essential amino acids.
The fat of milk is mainly glycerides of palmitic acid and stearic acid, and also contains a small amount of lower fatty acids such as butyric acid, caproic acid and octanoic acid. In addition, it also contains a small amount of lecithin, cholesterol, pigment and so on.
For middle-aged and elderly people, milk also has a great advantage, that is, compared with the high cholesterol of many animal proteins, the cholesterol content in milk is lower (milk:13mg/100g; Lean meat: 77 mg/100 g). It is worth mentioning that some ingredients in milk can also inhibit the amount of cholesterol produced by the liver, so milk can also lower cholesterol.
This milk drink is not as nutritious as pure milk, but it is very popular with children because of its rich taste. Tired of drinking pure milk, you can give your child a different taste. However, in order to taste better, some spices are usually added to milk drinks. It is suggested to choose big brands of milk drinks to ensure food safety.
Pasteurized pasteurized milk needs to be completely refrigerated at 4℃- 10℃, which is more popular. Preserve the nutrients in milk to the greatest extent.
Most of the milk with short shelf life is pasteurized "homogeneous" milk. This method can perfectly preserve the nutrients in milk, and it is one of the most advanced milk disinfection methods in the world. Normal temperature milk kills all harmful bacteria by ultra-high temperature sterilization, and the shelf life can be extended to 6-12 months without refrigeration.
But the nutrients will be lost greatly. Reduced milk and milk powder shall not be used in pasteurized milk, but dairy products such as normal temperature milk and yogurt can be used, but the raw materials must be marked with "reduced milk" or "water and milk powder".
Fresh milk, in many developed countries, unsterilized fresh milk is the most popular among consumers, but it is also the most expensive. Freshly squeezed milk contains antibacterial active substances such as lysozyme, which can be stored at 4℃ for 24 ~36 hours.
This kind of milk does not need heating, and it is not only nutritious, but also retains some trace physiological active components in milk, which is very beneficial to children's growth. The word "no milk" has been recognized by most people, but it will not appear on the outer packaging of milk, because it is one of the indicators of milk leaving the factory, and the milk of well-known manufacturers should meet this standard.
Antibiotic-free milk refers to milk produced from raw materials without antibiotics. "Drug resistance" refers to various antibiotics used to treat sick cattle, such as penicillin and streptomycin.
Cows are prone to mastitis when changing seasons every year, and mechanical milking is more prone to mastitis than manual milking. Injecting antibiotics directly into the * * * part of the cow can restore the health of the cow as soon as possible. After antibiotic treatment, a small amount of antibiotics will remain in the milk produced in a certain period of time, which can not be used as the raw material of edible milk.
Sterilized milk, many manufacturers have made Bailey bags that can be preserved for a long time in order to meet the needs of office workers. Bailibao milk, which has been preserved for a long time, was completely sterilized during the processing, and the bacteria beneficial to the human body were basically "caught in one net", and the nutritional components of milk were also destroyed.
The packaging of this milk is very similar to fresh milk. Most milk has a shelf life of 30 days or more, and some sterilized milk has a shelf life of more than 6 months. Sterilized milk generally has a strong taste, but there is a certain loss of nutrients, and B vitamins have a loss of 20%~30%.
Although the yield of buffalo milk is low, it contains more protein, amino acids, milk fat, vitamins and trace elements than buffalo milk. According to the country.
It is controversial to write a composition about the milk incident. Recently, several words have been popular on the Internet: "A catty of milk a day, a stone in China." "Foreigners drink milk, which is powerful, but China people drink milk and have stones." "When you can't figure it out, think of you in China and you will understand." There is no doubt that the first two items are aimed at the Sanlu tainted milk powder incident that has been making a lot of noise these days. After reading it, I can only smile helplessly, but I am a little indignant at the third article I just saw. I understand after careful consideration. After all, it is almost impossible to change a big status quo or hidden rules in China without killing a few people.
In this tainted milk powder incident, domestic brands were almost completely wiped out, and there was a great rush. Why can't you find out? I'm afraid it has something to do with the title of inspection-free products. I don't even check. Who knows what you mixed in. Of course, * * * even if you know, you don't necessarily care. After all, these giant companies are producers, job providers and taxpayers of a large amount of GDP. How can they care? So before drinking the dead, * * * also turned a blind eye.
Some people will think that this is an individual incident, and they will think that my views are extreme. What do you mean, dead people can only change? Don't say this kind of thing has a long history in China. From poisoned rice a few days ago to moon cakes in Guan Sheng Garden a few years ago, people always drink or eat people to death, at least on a large scale. Public opinion was created, and * * * barely began to be highly effective. Some people will think, if I say this, is there something not dead?
People's things are still hurting people? This is natural. Let's talk about something suitable for life Everyone goes to the market to buy food, right? How do these vegetables and meat grow?
what's up Growing up with hormones has shortened the growth time many times, which seems to benefit the people. What's delicious? There are too many of these things. be
Always in poor health, many children are precocious. But nobody cares, everyone knows, and nobody cares. Why? Can't eat dead people!
Moreover, many primary and secondary schools have canteens, where there are many kinds of snacks, including all kinds of three-no-food. Don't be a freak Small workshops are evil to children, and people are also trying to survive. But * * * Why not? In the same way, what you eat the most is diarrhea, and it is impossible to break out on a large scale. I can't eat dead people. How can I care?
On the other hand, in other countries, a few months ago, Japan found out that the quick-frozen dumplings exported from China contained some chemicals that were not conducive to human health, and immediately launched an investigation and inspection. Later, although this matter went away for various reasons. But it also fully reflects the attitude that a responsible * * * should hold on national security issues.
In fact, if we want to change the current situation in China, people will die not only in food, but also in all aspects. Tan Sitong, who was far away, went to two Kunlun Mountains to stay overnight, and the nearest anti-poacher died under the guns of poachers. Is it true that only the dead can change a major status quo in China? Does it make sense? Then just think that you are in China, and you will understand.
3. Milk and Health Composition I like drinking milk very much. It is delicious and nutritious, which can make us healthy. Do you like drinking? There is a lot of nutrition in milk! I checked the information and found that milk is rich in other nutrients except water, and protein and fat account for 6%.
9%。 Mom said that the fat particles in milk are very small and uniform, which is very beneficial to absorption and can also promote digestion.
Although milk is nutritious, there are still precautions when drinking it! For example, you can't drink raw milk, because there are a lot of bacteria and excreta in milk, so drinking it directly is easy to get sick. Don't drink expired milk. Expired milk will breed many harmful bacteria and affect health.
To tell the truth, I also found an interesting phenomenon when I was drinking milk. Once, because I didn't drink my mother's hot milk in time, I was surprised to find something similar to bean jelly on the milk after it was cold. I quickly picked it up and threw it away.
Afterwards, I learned by looking up the information that this layer of "cold noodles" is as nutritious as milk, and it can also play the role of "nutrition lock" to lock the nutritional elements in milk. From then on, when I meet "cold noodles", I will enjoy them happily.
Recently, I read in the news that in some poor mountain villages in China, many children like me still can't drink milk and their nutrition can't keep up. The average height is 2 cm shorter than that of children of the same age in cities. After reading these, I was very sad and decided to buy milk from my pocket money to give them more nutrition.
I want to cherish the life where I can drink milk, exercise well and try my best to help those partners who can't drink milk.
Write a story about milk and a glass of milk
One day, a little boy named Howard Kelly was selling goods from door to door in order to save enough tuition. He has only a dime left. He was so hungry that he decided to beg for food from the next family.
However, when a beautiful young woman opened the door, the little boy was a little at a loss. Instead of asking for food, he begged for a drink of water. Seeing that he was hungry, she poured him a large glass of milk. The boy drank the milk slowly and then asked, "How much should I pay you?"
"You don't owe me at all," she said. "My mother taught me not to accept rewards for a little kindness."
The boy said, "then accept my heartfelt thanks!" " "When he left this home, he not only felt energetic, but also believed in the goodness of human nature more. Before doing so, he intends to give up. A few years later, the boy became a famous doctor.
One day, he was asked to consult a female patient. The patient is very ill, and there is nothing the doctors in her town can do about it. They moved her to a big city, where she received expert consultation. Kelly's eyes lit up when he heard the name of the town where the patient came. He immediately got up and went straight to her ward. He recognized her as soon as he entered the ward. He is determined to do his best to save her life. From that day on, he gave her special care. After hard work, the operation was successful. Dr Kelly asked the pharmacy to send him the final bill. He looked at it and signed his name next to the document. This receipt was sent to the ward of the female patient, and she was afraid to read it because she was sure that the cost of treatment would make her pay for the rest of her life. But the small print next to the file caught her attention:
"The medical bill has been paid: a glass of milk. Dr Howard Kelly. "
Her eyes were full of tears ... when she did a good deed without asking for anything in return, she was rewarded.
5. Self-report composition about milk 500 words Hello everyone, my name is milk, and now I'd like to introduce myself to you.
I am one of the oldest natural drinks. As the name implies, milk is expressed from a cow. In different countries, I have different achievements. At present, the most common are full-fat, low-fat and skim milk. At present, there are quite a few additives on the market, such as high-calcium and low-fat milk, which emphasizes adding calcium. The nutritional components of milk per100g are as follows:
Calorie (54.00 kcal), protein (3.00 g), fat (3.20 g), carbohydrate (3.40 g), vitamin A (24.00), thiamine (0.03 mg), riboflavin (0. 14 mg), nicotinic acid (0.65433 mg). Vitamin E (0.2 1 mg), calcium (104.00 mg), phosphorus (73.00 mg), sodium (37.20 mg), magnesium (110.00 mg) and iron (0.30 mg).
My nutrition is very high, and the types of minerals are also very rich. In addition to the well-known calcium, there are many contents such as phosphorus, iron, zinc, copper, manganese and molybdenum. The most rare thing is that I am the best source of calcium for human body, and the ratio of calcium to phosphorus is very suitable, which is beneficial to the absorption of calcium. There are at least 100 complex species, and the main components are water, fat, phospholipids, protein, lactose and inorganic salts.
Generally speaking, my main chemical composition is as follows:
Humidity: 87.5%
Fat: 3.5-4.2%
Protein: 2.8-3.4%
Lactose: 4.6-4.8%
Inorganic salt: about 0.7%
There are 20 kinds of amino acids that make up human protein, 9 of which can't be synthesized by human body. These amino acids are called essential amino acids. If the protein we eat contains all the essential amino acids, this protein is called total protein. Protein in me is always protein.
For middle-aged and elderly people, milk also has a great advantage, that is, compared with the high cholesterol of many animal proteins, the cholesterol content in milk is lower (milk:13mg/100g; Lean meat: 77 mg/100 g). It is worth mentioning that some components in my body can also inhibit the amount of cholesterol produced by my liver, which makes me have the effect of lowering cholesterol.
Listen, I'm fine, and you? Remember me.
6. "Buy expired yogurt in the supermarket" 500-word composition One hot afternoon, I went downstairs alone to buy yogurt to relieve the heat.
I bought two glasses, paid the money and skipped home. The next day, I went to buy yogurt as usual. At this time, an aunt just bought two cups of the same yogurt as I bought yesterday. She paid 2.80 yuan and walked out of the door.
I was thinking, is the price of yogurt reduced? So I asked my uncle, "is today's yogurt left over from yesterday?" My uncle immediately denied it and said, "No, I just entered today." Then why did I buy two cups for three yuan yesterday, while my aunt only bought two yuan and eighty cents? I asked, puzzled. At this time, my uncle was obviously a little uncomfortable. He didn't want me to spill the beans. He quickly took out a toy from his bag and stuffed it into my hand, signaling me not to talk. I got the message and nodded.
I thought to myself, is my uncle going to charge me 20 cents more for seeing that I am a child, or did I have no change yesterday? I don't think my uncle is such a person at ordinary times. He shouldn't have changed much, but his movements and eyes suddenly made me deny the answer just now. When I got home, I told my parents what happened. They taught me that honesty, fairness and equality are very important as a person in business.
The humble twenty cents changed my opinion of my uncle. He is no longer my uncle. My parents taught me to be an honest man. Only honest people can win the trust and respect of others. Their teaching will benefit me a lot in my life.
7. Knowledge composition about milk Milk is a drink that people often drink. It contains fresh milk, protein, fat, calcium and other nutrients, which many people like to drink.
Although milk is so humble, there is still a lot of learning! Some people like to drink milk in the morning, but not at night. Because of this, they will feel sleepy and want to sleep when they study and work during the day.
Because there is a kind of L- tryptophan that can make people tired and morphine that has sedative effect in milk, it is best to drink milk at night. Especially for those who suddenly wake up in the middle of the night and can't sleep, it is very useful.
What should adults do with flatulence, abdominal pain, bowel sounds, diarrhea and other symptoms after drinking milk? Don't worry, of course, there are ways: drink as little as possible, or drink more, drink 1 10 ml milk every time, and keep drinking 120 ml for more than two months. These symptoms will not appear.
Or milk and eggs. After the milk is heated, add the eggs and stir until it is half cooked.
If milk is heated and then poured into a thermos for storage, bacteria will be mixed in the milk. Once bacteria enter milk, they can reproduce every 20~30 minutes, which makes milk deteriorate rapidly. We only know that drinking milk is good for our health, but we don't know that it has these disadvantages.
8. Ingredients milk can't water flowers for 350 words. For flower growers, more and more methods can be found to fatten flowers, which can make the cultivated flowers healthier.
Even the expired milk at home, I hope it can be used reasonably and bring nutrition to the flowers at home. Can the expired milk water the flowers? This is a problem that flower lovers are very concerned about. For flower growers, there are always more and more ways to promote flowers, which can make the cultivated flowers healthier.
Even the expired milk at home, I hope it can be used reasonably and bring nutrition to the flowers at home. Can the expired milk water the flowers? This is a problem that flower lovers are very concerned about. The milk we usually drink has a high nutritional value, but if we water the flowers with expired milk, will it provide rich nutrition for the flowers, or will the expired milk have gone bad and water the flowers will be a burden? With these questions, let's take a look.
Expired milk cannot be directly used to water flowers, because the rich substances in milk will release lactic acid, which will change the nature of the soil itself and increase the acidity of the soil. So expired milk can't be directly used to water flowers. However, expired milk can be treated. After long-term storage and sealing, it can be poured out, mixed with other fertilizers as nutrient fertilizer for flowers, and added to flowers, but it should also be noted that the dosage should not be too much.
Friends who water flowers with expired milk should pay attention, because expired milk will smell, so if you pay attention to the fresh style of your home, it is recommended not to water flowers with deteriorated expired milk, unless the smell of deteriorated milk is tolerable, it is not recommended to water flowers with expired milk.
9. Be brave. Is the composition simple? Can't you write a nice song? Is my voice not good enough to impress you? Is it someone else's love that I can't sing? Will someone hug me after singing? Is it expired milk that can't be drunk? Is the expired love still in your heart? Is it the gentle battlefield that always makes me surrender? Is it more confusing to choose either-or questions than to choose more? It doesn't matter if there is no answer. Without stars, the earth still shines. Distance turns love into long-distance running. When we are running, don't think about whether it will be good in the future. Can't you drink expired milk? Is the expired love still in your heart? Is it the gentle battlefield that always makes me surrender? Is single choice more terrible than multiple choice? It doesn't matter if there is no answer. Without stars, the earth still shines. Don't think about the future when we run. It doesn't matter if there is no answer. Without stars, the earth still shines, making love a long-distance race. When we run, we shouldn't think about the future.