Lignocellulose source

The source of lignocellulose, in life, diet is one of the main ways for human beings to obtain demand. Eating patterns such as three meals a day are not only conducive to supplementing physical fitness, but also improving the body's immunity. But different kinds of food contain different nutrients. Let's look at the source of lignocellulose.

The source of lignocellulose 1 lignocellulose is an organic flocculent fiber material obtained by chemical treatment and mechanical processing of natural renewable wood, and the chemically treated wood belongs to lignocellulose.

The differences between lignocellulose and cellulose and lignin are as follows:

First, the characteristics are different.

1, lignocellulose: non-toxic, tasteless, pollution-free and non-radioactive.

2. Cellulose: Cellulose is insoluble in neither water nor common organic solvents; Under certain conditions, cellulose reacts with water; Cellulose reacts with oxidant to produce a series of substances with different structures from original cellulose.

3. Lignin: soluble in strong alkali and sulfite solution.

Second, the sources are different.

1, lignocellulose:) is made of natural renewable wood through chemical treatment and mechanical processing.

2. Cellulose: derived from plant cell walls.

3. Lignin: Lignin is the main by-product of cellulose industry.

Third, the use is different.

1, lignocellulose: it is widely used in concrete mortar, gypsum products, wood pulp sponge, asphalt pavement and other fields, and has a good effect on preventing coating cracking, improving water retention, improving production stability and construction simplicity, increasing strength and enhancing adhesion to the surface.

2. Cellulose: The main application is dietary fiber.

3. Lignin: It can be used as an additive for epoxy resin, rubber and thermoplastics. Can be used as a polymer raw material; Can be used as an animal feed additive.

Lignocellulose Source 2 Lignocellulose is an organic flocculent fiber material obtained by chemical treatment and mechanical processing of natural renewable wood.

Widely used in concrete mortar, gypsum products, wood pulp sponge, asphalt pavement and other fields, it has good effects on preventing coating cracking, improving water retention, improving production stability and construction adaptability, increasing strength and enhancing adhesion to the surface. Its technical functions are thixotropy, protection, absorption, carrier and filling.

Due to the capillary action of fiber structure, the water in the system quickly transfers to the surface and interface of the slurry, which makes the water distribution in the slurry uniform and obviously reduces the skinning phenomenon. The bonding strength and surface strength are obviously improved, and this mechanism also plays an important role in crack resistance because of the decrease of tension during drying. The dimensional stability and thermal stability of wood fiber play a very good role in heat preservation and crack resistance.

The basic unit of cellulose is glucose. Cellulose is the most widely distributed and abundant polysaccharide in nature, accounting for more than 50% of the carbon content in the plant kingdom. The cellulose content of cotton is close to 100%, which is the purest natural cellulose source.

Cellulose is a macromolecular polysaccharide composed of glucose. Insoluble in water and general organic solvents. It is the main component of plant cell wall. Cellulose is the most widely distributed and abundant polysaccharide in nature, accounting for more than 50% of the carbon content in the plant kingdom.

The cellulose content of cotton is close to 100%, which is the purest natural cellulose source. In general wood, cellulose accounts for 40-50%, and there are 10-30% hemicellulose and 20-30% lignin.

Cellulose is the main structural component of plant cell wall, which is usually combined with hemicellulose, pectin and lignin, and its combination mode and degree have great influence on the texture of plant-derived food. However, the texture changes of plants in mature and post-mature stages are caused by the changes of pectin substances.

Extended data

Introduction of cellulose types

1, a polymer compound with ether structure made of cellulose. Each glucose ring in cellulose macromolecules contains three hydroxyl groups, the primary hydroxyl group on the sixth carbon atom and the secondary hydroxyl groups on the second and third carbon atoms, and the hydrogen in the hydroxyl groups is replaced by hydrocarbon groups to generate cellulose ether derivatives. It is the product that the hydrogen of hydroxyl in cellulose polymer is replaced by alkyl.

2. Methyl cellulose

A nonionic cellulose ether is prepared by introducing methyl groups into cellulose through etherification. Methyl cellulose has four important functions: thickening, surface activity, film formation and hot gel formation (melting when cooling).

Methyl cellulose solution is stable in a wide PH range (3.0~ 1 1.0). It has unique thermal gelation properties, that is, it forms gel when heated and melts when cooled, and the gelation temperature is between 50-70℃.

Lignocellulose Source 3 High-fiber foods are common dishes on the table, but which foods are high-fiber foods?

1, yam: yam is rich in fiber and can produce satiety. Dietary fiber in yam is beneficial to promote gastrointestinal peristalsis and digestive system. It can not only enhance immunity, but also prevent obesity.

2, apples: apples contain dietary fiber and pectin, which is conducive to gastrointestinal peristalsis; It is also beneficial to remove cholesterol. Apple can also eliminate edema, and its potassium has diuretic effect.

3, mushrooms: mushrooms contain a lot of cellulose, which can promote gastrointestinal peristalsis and prevent constipation. Regular consumption of mushrooms can promote the decomposition of cholesterol and reduce cholesterol content.

4. Pitaya: Pitaya is a kind of fruit with high fiber and low calorie. Conducive to detoxification and prevention of constipation. Eating pitaya regularly can also achieve the purpose of losing weight, including whitening and improving skin color.

It can be seen that there are mainly the above four kinds of high-fiber foods. In addition, there are several high-fiber foods such as celery and red beans. But what are the benefits of eating high-fiber food for a long time?

1, lose weight: The first advantage of eating high-fiber food is that you can lose weight. Foods from high fiber are low in calories and fat. Long-term consumption can not only supplement nutrition, but also achieve satiety. Regular consumption of high-fiber food has obvious weight loss effect.

2, treatment or prevention of constipation: constipation caused by various factors. Constipation will not only cause bad breath, but also have an adverse effect on the intestines. Constipation patients can eat more high-fiber food, which can promote digestion and gastrointestinal peristalsis, play the role of detoxification and constipation, and the constipation problem will be solved.

3, protect the mouth: bad eating habits and bad behavior lead to oral problems, including oral muscle pain, fragile teeth and so on. Eating high-fiber food often helps to strengthen oral muscle movement and protect teeth.

4. Control blood sugar: Eating high-fiber foods often helps to reduce the absorption of glucose, thus achieving the purpose of controlling blood sugar levels.

To sum up, high-fiber food has many benefits to human body, including promoting digestion and preventing constipation. High-fiber food can also maintain multiple organs of the human body and provide nutrition. Of course, it also includes improving human immunity. In addition to yam and other foods, you can also eat high-fiber foods such as aloe and oats.