What are the substances in the food Urgent, urgent, urgent

1. Carcinogens in food mainly include: nitroso compounds, high-fat substances, high-concentration alcohol, etc. Among them, the precursors of nitroso compounds are more abundant in stale foods such as rotten and spoiled foods, and the stomach synthesizes the precursors of nitroso compounds into nitroso compounds when the human body has atrophic gastritis or insufficient gastric acid secretion.

2. Carcinogens in food contamination mainly include:

Agricultural pesticides, household detergents may contain carcinogenic compounds, and food that comes into contact with these can be contaminated.

Some hormonal agents can enter food poultry and livestock through veterinarians** or feed additives, inducing tumors related to the endocrine system.

Some food packaging materials contain a variety of cyclic aromatic hydrocarbon-based substances that are potentially carcinogenic. Such as food packaging bags, wrapping paper, etc.

Carcinogens in the air accumulate in food through soil, water, etc.

3. Additives in food, such as preservatives, food colorings, spices, flavorings and other additives contained in nitrosamines.

4. Food processing and savings are carcinogens, smoked food and pickled food contain a large number of cyclic aromatic hydrocarbon-based carcinogens, moldy rice, corn, beans contained in aflatoxin has a strong carcinogenic effect on humans and animals.

Salted fish: Salted fish produce dimethyl nitrite, which can be converted into dimethylnitrite amine in the body. A person who regularly eats salted fish from birth to 10 years of age is 30-40 times more likely to develop nasopharyngeal cancer in the future than those who do not eat salted fish.

Fish sauce, shrimp paste, salted eggs, pickles, sausages, ham, and smoked pork also contain more nitrite amine carcinogens, so they should be eaten as little as possible.

Barbecue food: roast beef, roast duck, roast lamb, roast goose, roast pork, etc. Because it contains a strong carcinogen 3,4-benzopyrene, it should not be eaten more.

Smoked foods: such as bacon meat, smoked liver, smoked fish, smoked eggs, smoked dried tofu, etc., also contain benzopyrene carcinogens, and are prone to esophageal cancer and stomach cancer when eaten regularly.

Fried food: After frying too burnt, the carcinogen polycyclic aromatic hydrocarbons are produced. When the coffee beans are burned, the benzopyrene content increases by 20 times. Pancakes, stinky tofu, fried taro, fried fritters, etc., most of them use oil that has been repeated many times, and a carcinogenic decomposition substance will be produced at high temperatures.

Moldy food: Rice, wheat, beans, corn, peanuts and other foods are susceptible to moisture mildew, and various carcinogenic toxins will be produced after being contaminated by mold.

Overnight ripening of cabbage: nitrite is produced, which is converted into nitrite amine carcinogens in the body.

Betel nut: Chewing betel nut is a factor in oral cancer.

Repeatedly boiled water: Repeatedly boiled water contains nitrites, which eventually produce carcinogenic nitrous acid.

Undrinkable water and ditch water: Stomach cancer, esophageal cancer, and liver cancer are all related to drinking pond water. People who regularly drink unboiled tap water are 21 more likely to develop bladder cancer and 38 percent more likely to develop rectal cancer.

There are calories needed by the human body, trace elements required by the human body, and there are also some toxins that are not good for the human body!

Various vitamins, proteins, sugars, inorganic salts, water,

Foods that contain more sugars include: Candy and desserts: Candy, cakes, biscuits, ice cream, etc. contain a lot of sugars such as sucrose, fructose, and glucose.

Beverages: Sugary beverages (such as soft drinks, fruit juices, etc.) also contain a lot of sugars. Fruits and vegetables:

Fruits contain natural fructose, and some vegetables (e.g., carrots, beets, corn) also contain small amounts of sugar. Staple foods: Staple foods such as liquid white rice, white bread, and pasta also contain a certain amount of starch, which will be converted into glucose after digestion.

1. Food refers to substances that can meet the normal physiological and biochemical energy needs of the body and extend the normal lifespan. For the human body, the substance that can meet the needs of normal life activities and help prolong life is called food. Food is usually made up of carbohydrates, fats, proteins, and water, and substances that can provide nutrition or pleasure to humans or living beings through eating or drinking.

2. The food can be plants, animals or other organisms, such as fungi, or fermented products such as alcohol. Humans obtain food in many different ways, such as gathering, farming, animal husbandry, hunting, fishing and hunting.

The organic matter in food is mainly composed of three elements: oxygen, hydrogen and carbon.

For example, in meat food, mainly including fat, protein, etc., vegetables are rich in chlorophyll, amino acids and vitamins and other organic matter, so it is not in a food that includes all the organic matter needed by the human body, the diet must be balanced, meat and vegetable collocation is the most reasonable match, do not always eat only one food, is not conducive to the absorption of nutrients.

In a narrow sense, organic compounds mainly refer to compounds composed of carbon and hydrogen elements, which must be carbon-containing compounds, but do not include carbon oxides and sulfides, carbonic acid, carbonates, cyanides, thiocyanides, carbides, carboranes, carbonyl** genus, metal-organic ligand complexes without M-C bonds, and some metal-organic compounds (substances containing M-C bonds) and other carbon-containing substances mainly studied in inorganic chemistry.

Organic matter is the material basis for the production of life, and all living organisms contain organic compounds, such as fats, amino acids, proteins, sugars, heme, chlorophyll, enzymes, hormones, etc. The metabolism of organisms and the genetic phenomena of organisms are all about the transformation of organic compounds. In addition, many substances that are closely related to human life, such as oil, natural gas, cotton, dyes, chemical fibers, plastics, plexiglass, natural and synthetic drugs, etc., are closely related to organic compounds.

Organic matter originally meant substances derived from living organisms, because the organic matter discovered in the early days was isolated from living organisms. With the development of organic synthesis, many organic substances can be synthesized by inorganic substances in the laboratory. The word "organic" has lost its original meaning.

The six major nutrients in food are sugars, fats, proteins, vitamins, water, and inorganic salts. Among them, organic substances include sugars, oils, proteins, and vitamins; Belonging to the category of inorganic substances are vitamins, water, and inorganic salts. So the answer is:

sugars, fats, proteins, vitamins, water and inorganic salts; sugars, fats, proteins; Vitamins, water and inorganic salts.

Inorganic salts contained in food, also known as minerals, such as calcium, iron, iodine, etc., inorganic salts are very important to the human body, if there is a deficiency, there will be a corresponding deficiency, for example, calcium and phosphorus contained in inorganic salts are important components of bones and teeth, iron is a component of hemoglobin, iron deficiency in the human body will make the synthesis of hemoglobin disordered, so that the content of hemoglobin in the human body is too low, resulting in anemia Calcium deficiency can cause rickets and osteoporosis, and iodine deficiency can easily lead to endemic goiter, also known as big neck disease

Therefore, the answer is: inorganic salts; Calcium; Iron; Iodine; Calcium;

These ten foods are rich in a certain mineral and are very suitable for people with large faces.

The so-called feed nutrient-active substance.

It refers to "feed raw materials naturally occurring or feed nutrients produced in the process of feed addition including carotenoids, enzymes, fatty acids, and the process of digestion and metabolism in animals."

There are ultra-trace ingredients for special nutritional regulation or health functions such as promoting gut health, maintaining optimal immune and oxidative balance, and regulating gene expression (Lu Dexun)" Different scholars have used different terms for the nutrient active substances present in feed ingredients or products in the English literature, and I have always recommended the use of the term nutricines advocated by Adams (1999). According to Adams (2007), this is defined.

Some of the nutritional active substances include carotenoids, enzymes, fatty acids, flavourings, oligosaccharides, organic acids, phospholipids and polyphenols.

Nutricines:

An area of research that needs to be revisited.

Lu Dexun. Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot 010030, China).

Plant bioactives play an important role in the maintenance of optimal health of the human body. Since the 90s of the 20th century, people's new understanding of plant bioactive substances represents the arrival of the second "** era" of nutrition, which plays an increasingly important role as a functional factor in functional foods.

With the deepening of people's understanding of "diet and health", the research and development of plant bioactives or phytochemicals has attracted worldwide attention. Many scientists have basically recognized that plant bioactives, especially those in dietary plants, play an important role in the maintenance of human "well-being" and the prevention of many modern chronic diseases. Moreover, people's taboo of chemical synthesis and the admiration of natural chemicals have also made the world pay attention to many bioactive substances in plants, hoping to find plant natural substances that can replace many chemical compounds widely used in medicine.

This is one of the main reasons why Chinese herbal medicine is attracting more and more attention from developed countries today.

Bioactive substances refer to trace or small amounts of substances from living organisms that have an impact on life phenomena.

Biologically active substances"Interpretation in the academic literature.

1. Bioactive substances refer to physiologically active ingredients that have regulatory functions for human advanced life activities. As the basis for the growth and development of wheat, wheat germ is known as the source of life, which is not only highly nutritious, but also rich in a variety of bioactive substances. Research on the bioactive substances of wheat germ is attracting increasing interest.

Literature**. 2. Broadly speaking, as long as it is a substance that has some kind of activity to living organisms, it can be called a biologically active substance. In a narrow sense, it generally refers to substances with strong biological activity such as pharmacological or other physiological activity to humans and animals, killing or repelling activity to insects, and killing activity to weeds.

3. The so-called biologically active substances refer to substances that have specific active functions on biological organisms. Bio-based toothpastes have a specific effect on cleaning and fixing teeth and maintaining oral health. At present, bio-based toothpastes mainly include enzyme-containing preparations, antibody-containing preparations and other biologically active preparations.

4. Some foods contain a variety of biologically active compounds, which can cause various biological effects when they interact with the body, which are called bioactive substances. 3. There are many types of sugars, lipids, protein polypeptides, sterols, alkaloids, glycosides, volatile oils, and so on.

5. In food, especially plant food, there are many non-nutritive chemicals with anti-cancer and anti-mutagenesis activities, which can also be called bioactive substances. There are mainly polyphenols, indoles, sulfhydryl compounds, spices, plant pigments, terpenoids, porphyrins, protease inhibitors, flavonoids, and saponins.

Our food is mainly made up of animal foods and plant foods. There are hundreds of foods for human consumption in nature, which can be divided into two categories: plant food and animal food, plant food mainly provides protein, carbohydrates, most vitamins and minerals, and animal food mainly provides high-quality protein, fat, fat-soluble vitamins, B vitamins and minerals.

The type of food

Cereals and potatoes, such as rice, noodles, corn, sweet potatoes, etc., mainly contain carbohydrates, proteins and B vitamins, which are the most economical energy for the human body**. Vegetables and fruits are rich in vitamins, minerals and dietary fiber, which play an important role in human health.

Animal foods such as meat, eggs, fish, poultry, milk, etc., mainly provide protein, fat and minerals to the human body. Soybeans and their products, such as tofu and dried tofu, are rich in protein, inorganic salts and vitamins. Energy-only foods, such as sugar, alcohol, fats, and hard fruits.

Food can provide energy for the human body, and food can generally be divided into two parts: endogenous substances and exogenous substances, among which endogenous substances are the components of the food itself, and exogenous substances are other components artificially added or mixed in the whole process of food from processing to ingestion.