Definition of galactooligosaccharide
Galactooligosaccharide is a kind of functional oligosaccharide with natural properties. In nature, there is a trace amount of GOS in animal milk, while the content in human breast milk is more, and the establishment of bifidobacteria flora in infants is very large. To a certain extent, it depends on the GOS components in breast milk.
The physical and chemical properties of galactooligosaccharides
Galactooligosaccharide is a low-molecular-weight water-soluble dietary fiber with low viscosity, strong moisture retention, no minerals, refreshing taste, low calorific value, and its sweetness is only 20%-40% of sucrose. Both acid and heat have strong stability, and will not be decomposed under the conditions of 180 or pH 3, and have high coloration, strong water retention capacity, no bad texture and flavor, and no digestion by the human body. Digested, it has good bifidobacteria proliferation activity. Therefore, GOS is a very high-quality food additive.
Galactooligosaccharides have strong acid resistance and heat resistance, and will not lose their original characteristics due to high temperature sterilization during processing and the decomposition of human stomach acid.
The effect of galactooligosaccharides
①Reduce the incidence of dental caries
GOS is a water-soluble dietary cellulose with good performance and small molecular weight. It exists as a liquid in the intestinal tract and has low calories. GOS produces water-soluble monosaccharides, but cannot produce lactic acid and other substances. it can not cause tooth decay. Therefore, GOS can be used as a sweetening additive without harm to dental health.
②Not digested by the intestine
Various experiments have shown that GOS can pass through the small intestine directly without being decomposed by the digestive enzymes in it, and is decomposed and utilized by the intestinal flora after reaching the large intestine.
③Contribute to the proliferation of bifidobacteria
Studies have shown that GOS is an effective proliferation factor such as Bifidobacterium infantis, Bifidobacterium adolescentis and Bifidobacterium longum that live in the human intestine, and can balance the flora in the intestine.
④Protect the liver and improve the absorption of mineral elements
The large intestine is the main place for the absorption of calcium and other mineral elements. The absorption of mineral elements helps to increase the density of minerals in the bones. Studies conducted on GOS have shown that GOS can improve the intestinal absorption of calcium, magnesium and other mineral elements.
⑤Regulate lipid metabolism
In addition to the above functions, GOS can also regulate the content of cholesterol and lipids in the human body's serum. A large number of experimental results have shown that the intake of GOS in the intestine can regulate the content of cholesterol in the serum. This is because GOS cannot be digested and absorbed by the hydrolytic enzymes in the intestine when it enters the intestine. The increase in the production of short-chain fatty acids such as acetic acid and propionic acid in the metabolites of probiotics, and the accumulation of short-chain fatty acids can help reduce the concentration of total serum cholesterol in the human body, thereby playing a beneficial role in regulating lipid metabolism.
After GOS enters the intestine, it will produce short-chain fatty acids such as acetic acid and butyric acid after being fermented by the microbial flora. The accumulation of short-chain fatty acids can promote the peristalsis of the intestines, increase the humidity of the feces, speed up the bowel movement, and thereby relieve the symptoms of constipation. Related human trials have also proved that an appropriate amount of GOS can have a good effect on relieving constipation.
⑦Other physiological functions
Relevant studies have shown that taking a certain amount of GOS every day can effectively prevent cancer cell pathology. At the same time, the intake of GOS is beneficial to stimulate the body to produce B vitamins, folic acid and niacin. In addition, according to related reports, GOS also has the function of lowering blood pressure.
Galacto-oligosaccharides can be selectively used by bifidobacteria in fermentation, and multiply the bifidus in the human intestinal tract at a 40-fold increasing rate.
Bacillus and other beneficial bacteria inhibit the production of harmful bacteria, regulate the intestinal microecological balance, and produce health benefits that are beneficial to the host.
1. Promote the synthesis of B vitamins, improve the absorption and utilization of protein, and promote the absorption of minerals.