Polysaccharides are complex carbohydrates that are made up of a large number of monosaccharide units connected by glycosidic bonds. They perform various functions in nature, such as energy supply, structural support for cells and tissues, and participation in biological processes. Polysaccharides are important components of foods, drugs, and industrial materials.
The main types of polysaccharides include:
- Starch and glycogen are reserve polysaccharides that are stored in plants and animals, respectively, providing energy needs.
- Cellulose and chitin are structural polysaccharides that form plant cell walls and insect exoskeletons.
- Pectin and agar are plant polysaccharides that are widely used in the food industry.
Polysaccharides are essential for human health. Dietary fiber, such as cellulose and pectin, helps improve digestion, regulates blood sugar and cholesterol levels, and supports healthy intestinal microflora. Some polysaccharides, such as beta-glucans, have immunostimulating and anti-inflammatory properties, which is used in the treatment and prevention of various diseases.
Polysaccharides are also used in pharmaceuticals, cosmetology and biotechnology due to their gelling, thickening and emulsifying properties. They are used to create medicines, skin care products and functional food products.