β glucanase refers to the ability to hydrolyze β-1,3 glycosidic bonds and β-1,4 glycosidic bonds in β-glucans to generate oligosaccharides, oligosaccharides and a small amount of glucose, making them lose their hydrophilicity The general term for a class of enzymes that are viscous and viscous. β glucanase mainly includes β-1,3-1,4-glucanase, endo and exo β-1,3-glucanase, endo and exo β-1,4- Glucanase. Endonuclease randomly cuts the long chain of β-glucan into short chains from the inside of the molecular chain, which can significantly reduce the viscosity of β-glucan; exonuclease cuts β-glucan from the non-reducing end Cutting one glucose successively has less influence on the viscosity of β-glucan.
The main application in the feed industry is endo β glucanase. There are many sources of β glucanase, and both plants and microorganisms can produce β glucanase. The main thing used in feed is β glucanase derived from microorganisms. Bacteria and fungi can ferment to produce β glucanase, and the enzyme-producing bacteria that are more researched and used in the feed industry is a fungus.
β-glucan is an important anti-nutritional factor that causes the viscosity of intestinal chyme to increase. β glucanase can degrade large-molecule β-glucans into oligosaccharides and oligosaccharides with a smaller degree of polymerization and a lower viscosity effect. Thereby, it can reduce the viscosity of chyme and improve animal growth performance. The decrease in viscosity enables the chyme to push into the posterior part of the digestive tract at a faster rate, increasing animal feed intake; at the same time, it increases the mixing rate of chyme and digestive enzymes and increases the chance of contact between nutrients and digestive enzymes. Improve the activity of digestive enzymes, thereby improving the digestion and absorption of nutrients.
The structure of plant cell walls is complex, and many plant feed materials cannot destroy the integrity of the cell wall structure even if they are crushed and processed. β-glucan is one of the main components of plant cell walls and forms a physical barrier with other substances in the cell wall. Block the release of nutrients in the cells. Part of the nutrients encapsulated in the cell wall cannot be completely digested and utilized because they cannot contact digestive enzymes. β glucanase can effectively degrade plant cell walls, break physical barriers, and promote the release of nutrients in the cell walls. Under the action of β glucanase, macromolecular nutrients are released from the broken cells, and more nutrients can interact with digestive enzymes, which improves the digestibility of feed.
The decrease in viscosity makes the digestion and absorption of nutrients in the small intestine more complete. β glucanase can reduce the number of nutrients available to harmful microorganisms in the back of the digestive tract, the proliferation and fermentation of harmful microorganisms in the hind intestine, and the production of sticky feces. And thereby, β glucanase can reduce pollution of the breeding environment and improve animal health.
No.28 Huiyuan Street, Economic Development Area, Shanghe County, Jinan, Shandong Province, China