Is medical glucose and sugar in grapes the same thing?

Glucose is not the sugar we call long. Glucose, also known as dextrose. A monosaccharide, aldehyde-containing hexamose.

The solid state is white crystal, slightly sweet when dissolved in water, and has optical rotation, and its aqueous solution is optical rotation to the right. It is widely found in living organisms and is a component of certain disaccharides (such as sucrose, maltose, etc.) and polysaccharides (such as starch, cellulose, etc.). Free glucose is found in the fruits of certain plants (such as grapes) and in the blood of animals and is the main energy substance in living organisms.

The level of grape (blood sugar) in the human blood is relatively constant, and the blood glucose concentration in a normal person is 80 120 mg when fasting and at rest. The central nervous system relies almost entirely on blood glucose** as an energy source, and glycosuria may occur once the blood sugar drops to 80 mg%. Industrially, glucose is produced by hydrolysis of starch, and in the 60s, microbial enzymatic method was used to produce glucose.

This is a major innovation with significant advantages over acid hydrolysis. In the production, the raw materials do not have to be refined, and there is no need for acid-resistant and pressure-resistant equipment, and the sugar solution has no bitter taste and high sugar yield. Glucose is mainly used in medicine as a nutrient for injection (glucose injection); In the food industry, glucose can be treated with isomerase to produce fructose, especially fructose syrup containing 42% fructose, which has the same sweetness as sucrose, and has become an important product of the current sugar industry.

No. Pure glucose is used for medical purposes.

The main content in grapes is glucose and fructose, and there is some fiber.

But grapes do contain a lot of glucose... Well.

Glucose is originally extracted from grapes. Glucose, also known as dextrose, is a simple sugar. Its solid state is white crystal, soluble in water, slightly sweet, and has optical rotation.

Its aqueous solution rotates to the right. It is widely present in living organisms and is a component of some disaccharides (such as sucrose, maltose, etc.). ) and polysaccharides (e.g., starch, cellulose, etc.).

Free glucose is present in the fruits of some plants and in the blood of animals, and is the main energy substance in living organisms. At the beginning of the 19th century, scientists used grapes to make glucose, but it was expensive to grow grapes, so corn was used in large quantities.

Glucose is originally extracted from grapes. Glucose, also known as dextrose, is a simple sugar. Its solid state is white crystal, soluble in water, slightly sweet, and has optical rotation.

Its aqueous solution rotates to the right. It is widely present in living organisms and is a component of some disaccharides (such as sucrose, maltose, etc.). ) and polysaccharides (e.g., starch, cellulose, etc.).

Free glucose is present in the fruits of some plants and in the blood of animals, and is the main energy substance in living organisms. At the beginning of the 19th century, scientists used grapes to make glucose, but it was expensive to grow grapes, so corn was used in large quantities.

But because it was too cumbersome to change the name, and in honor of the first scientist to produce this sugar, it has always been called "glucose".

The main difference between grapes and glucose is that glucose is a substance in grapes, grapes are a very delicious fruit, many people like to eat, eating grapes often can speed up our metabolism and discharge toxins from our body, especially girls should eat more grapes, it can also maintain our body, so if we usually like to eat fruits, you can buy some grapes to eat.

There is a difference between grapes being a fruit and glucose being a nutritious product.

Many people are curious, what is the relationship between glucose and grapes? As early as 1747, the German chemist Margrave isolated a mixture containing this sweet substance from raisins. Nearly 70 years later, four French chemists isolated the monomer of this sweet substance, which was officially named glucose.

Later, scientists found that glucose is actually contained in many sweet fruits, such as watermelon, bananas, pears, apples, longan, red dates, etc., and even in blood, but according to the nomenclature convention, it has always been called glucose. Is the sugar in grapes only glucose? Neither is it.

Glucose is just one of the many carbohydrates found in grapes. Grapes also contain fructose, galactose, mannose, maltose, stachyose, raffinose, necrobiose, starch, pectin, active polysaccharides, etc.

What many people don't expect is that glucose is not extracted from grapes, and the glucose we see now is obtained from starch. Some friends should have heard of "corn glucose", which is actually glucose, and the reason why it is called is because 70% of the starch is produced from corn, and the other small part comes from potatoes and sweet potatoes.

After we peel and polish the corn, it becomes a white powder, and then it is mixed with water, and after filtration and crystallization, it forms "glucose monohydrate", but the glucose at this time cannot be used. Some of it is further processed into sugar for our food, and many of the sweets we eat contain glucose, which is very popular with girls. The other part needs to remove a lot of impurities, and then add water to precipitate it into a white crystal, which is the glucose we usually use for infusion.

Food-grade glucose cannot be used for medical purposes, but medical glucose can be taken orally appropriately.

So why is the sugar produced by corn called glucose? In fact, at the beginning of the 19th century, scientists used grapes to produce glucose, but grapes were expensive to grow, so corn was used to produce them in large quantities. But the name change was too cumbersome, and in honor of the first scientist who produced this sugar, it was simply called "glucose", so strictly speaking, it was the grapes that took the credit for the corn.

Natural glucose, whether free or conjugated, belongs to the D configuration, and mainly exists in the aqueous solution in the form of pyran configuration oxygen-containing rings, which is a balanced mixture of and the two configurations. Under normal temperature conditions, crystals can be precipitated from supersaturated aqueous solution in the form of hydrate of d glucose (containing 1 water molecule), with a melting point of 80; The crystals precipitated between 50 and 115 are anhydrous -d-glucose with a melting point of 146. The stable form precipitated above 115 is -d-glucose, and the melting point is 148 150.

Glucose in the form of furan rings is only present in a few natural compounds in a bound state.

D-Glucose has the chemical properties of aldose in general: under the action of oxidants, gluconic acid, glucaric acid or glucuronic acid is generated; Under the action of reducing agent, sorbitol is generated; Under the action of weak alkali, glucose can be converted with two other six-carbon sugars with similar structures, fructose and mannose, through enol. Glucose can also be combined with phenylhydrazine to produce glucourene, which differs from other glycouretes in terms of crystal shape and melting point, and can be used as a means of identifying glucose.

Most organisms have an enzymatic system that breaks down D-glucose for energy. In living cells, such as mammalian muscle cells or single-celled yeast cells, glucose successively produces carbon dioxide and water through the aerobic glycolysis pathway, the aerobic tricarboxylic acid cycle and the biological oxidation process, releasing more energy, which is stored in the form of ATP (adenosine triphosphate) for growth, exercise and other life activities. In the absence of oxygen, glucose is only broken down to produce lactic acid or ethanol, releasing much less energy, and winemaking is an anaerobic decomposition process.

Industrially, glucose prepared by hydrolyzing starch with acid or enzyme can be used as raw materials for industrial production such as food, wine, and pharmaceuticals.

Glucose, sucrose, fructose, xylose in grape sugars.

The discovery of glucose was made hundreds of years ago and was within the scope of research in the molecular field, which was limited to the level of science at that time, and very little was known about this field. Originally, it was found in large quantities in the grape plant, so it was named"Glucose".In fact, glucose is widely found in a variety of plants and animals.

Moreover, the energy that the human body can directly use is glucose.

The sugar in grapes is partly glucose, which contains about 15% 30% sugars (mainly glucose, fructose and pentose) in addition to water.

Nutritive value. Nutrients of grapesGrapes are not only delicious but also highly nutritious. Grapes in ripe berries contain up to 10%-30% sugar, mainly glucose. A variety of fruit acids in grapes help digestion, and eating more grapes can strengthen the eyes and stomach.

Grapes contain minerals calcium, potassium, phosphorus, iron, and a variety of vitamins B1, vitamin B2, vitamin B6, vitamin C and vitamin P, etc., and also contain a variety of amino acids required by the human body.

Studies have found that grapes can prevent thrombosis better than aspirin, reduce human serum cholesterol levels, reduce platelet cohesion, and have a certain effect on the prevention of cardiovascular and cerebrovascular diseases. Eating the right amount of fresh grapes every day not only reduces the risk of cardiovascular disease, but also benefits the health of those with ischemic heart disease and atherosclerotic heart disease. The flavonoids in fresh grapes "cleanse" the blood and prevent the formation of cholesterol plaques.

The blacker the grape, the more flavonoids it contains, but if the grape skin is eaten with the grape seeds, it is more protective for the heart.

Medicinal value. Traditional Chinese medicine believes that grapes are flat and sweet and acidic, and enter the lungs, spleen, and kidney meridians, and have the effects of replenishing qi and blood, benefiting the liver and kidneys, generating fluid, strengthening muscles and bones, relieving cough and removing troubles, nourishing qi and blood, and facilitating urination. The resveratrol content in grape skins and proanthocyanidins in grape seeds are higher than those in other parts of grapes and most other fruit trees, and have extremely high medicinal value, and have become an important nutritional and medicinal commodity in the world.

Economic value. Wine is the most important processed product from grapes. Wine is a high-grade consumer product because of its cultural connotation. In China, its consumption has skyrocketed.

In addition, the newly developed grape seed oil is used abroad as an advanced nutritional oil for infants and the elderly, and as an advanced health oil for aerial workers and flight personnel

Why is glucose called glucose? What does it have to do with grapes?

Grapes contain glucose, but they also contain sugars such as sucrose and fructose. Most fruits contain a certain amount of glucose, sucrose and fructose, but in different proportions. Grapes contain about 15% sugar, half of which is glucose and half fructose, and less sucrose.

Grapes that contain a lot of glucose are more refreshing to eat. This is not to say that if you want to take glucose, you have to eat grapes, the main thing about glucose is starchy food. Glucose is the body's favorite energy**, which can be used for growth, exercise and other life activities.

excerpts).

Glucose was first found in grapes, hence the name"Glucose"。

Glucose, an organic compound. It is the most widely distributed and important monosaccharide in nature, and it is a polyhydroxyaldehyde. Pure glucose is colorless crystals, has a sweet taste but is not as sweet as sucrose, soluble in water, slightly soluble in ethanol, insoluble in ether.

The natural glucose aqueous solution rotates to the right, so it belongs to "dextrose".

Glucose has an important position in the field of biology and is the energy of living cells** and the metabolic intermediate, that is, the main energy supplier of living organisms. Plants can produce glucose through photosynthesis. It has a wide range of applications in the field of confectionery manufacturing and medicine.

Why is glucose called glucose? What does it have to do with grapes?

Why is glucose called glucose? Does it have anything to do with grapes? After reading it, I understand.

Choosing a name for something is either to emphasize the purpose, such as an electronic eye, disease insurance, or a drug detection dog. Either emphasize the material, such as nylon cloth, glass, cardboard box. But some names can be confusing.

Take glucose, for example! If wine is wine made from grapes, what about glucose? Does grapes produce sugar?

Glucose is a kind of sugar, ordinary white sugar hydrolysis has glucose, starch hydrolysis is also glucose, anyway, steamed bread, rice, sweets are partially converted into glucose in the blood.

Chemically speaking, sugar is a mixture, which is a combination of various sugars.

The composition of the substance, mainly sucrose, and glucose is a single compound, the general medical glucose is mixed with normal saline in proportion, it can be quickly absorbed by human cells to obtain energy, mainly used for vascular injection, such as hypoglycemia and syncope to be injected, if you want, you can also drink.

Chemically, it is a monosaccharide.