This group is commonly called cellulose fiber or fiber tract (food fiber)
Fiber is not soluble in water (cellulose, hemicellulose, lignin) - this is part of nourishment which the body does not digest, but it is essential; insoluble fibers accelerate chyme passing through the gut, which assist in digestion and prevent constipation. Cellulose is not digested by humans. Included in the cell walls of plants. It is made up of glucose bonded 1,4-ß-glycosidic bonds. It removes constipation, prevents the formation of digestive tract cancers, lowers blood glucose levels, inhibits weight gain, Hemicellulose - polysaccharides, insoluble in water. Lignins remove excess bile acids and cholesterol from the digestive tract, preventing the formation of gallstones,
Fiber-soluble (mucilages, gums, pectin) - fiber fractions inhibit the transfer of food from the stomach into the small intestine, thus prolonging the feeling of satiety and allowing for better absorption of some nutrients, these fibers have the form of a sticky substance present in the cell walls of plants . Locks have the ability to bind large quantities of water, which are used as laxatives (stomach problems). Rubbers are widely used in food production as a thickening agent, form connections with cellulose, so giving. pentocelulozy. Pectins are used to manufacture jams, are soluble in hot water, composed of arabinose, galactose, D-galacturonic acid, methanol and acetic acid.