Xylo-oligosaccharides, also known as xylo-oligosaccharides, are functional polymeric sugars composed of 2-7 xylose molecules bound by β-1,4 glycosidic bonds.
1. Xylooligosaccharides are difficult to be broken down by human digestive enzymes.
Digestion experiments using saliva, gastric juice, pancreatic juice and small intestinal enzyme juice show that various digestive juices are almost unable to decompose xylo-oligosaccharides, neither affect blood sugar concentration nor increase insulin levels in blood sugar, and will not form fat deposits. Therefore, it can play a role in low-energy foods, maximally meeting the requirements of those who love desserts but are worried about raising blood sugar and gaining weight. Therefore, diabetics and obese patients can eat it with confidence.
2. Good acid and heat stability.
Compared with other functional oligosaccharides, one of the outstanding features of xylo-oligosaccharides is good stability and high heat and acid resistance. Xylo-oligosaccharides are very stable in a wide pH range of 2.5-8.0. Within this pH range, they are almost not decomposed when heated at 100°C for 1 hour. Therefore, xylo-oligosaccharides can be widely used in food.
3. The effective intake is small.
Compared with other functional oligosaccharides, the effective daily dose of xylo-oligosaccharides is the smallest, only 0.7-1.4g, while the effective daily dose of fructooligosaccharides is 5.0-20.0 g, and the daily effective dose of galacto-oligosaccharides is The effective dose of ingested is 8.0-10.0 g, the effective dose of soy oligosaccharide is 3.0-10.0 g, the effective dose of isomaltooligosaccharide is 15.0-20.0 g, etc.
Physiological functions of xylo-oligosaccharides
There are hundreds of millions of bacteria inhabiting the human intestines and body surface, with more than 400 species and weighing up to two kilograms. Among them, some are harmful to humans and are called harmful bacteria, and some are beneficial to humans and are called harmful bacteria. Known as probiotics, there are also conditional pathogenic bacteria in between, which are bacteria that can cause illness in the human body under certain conditions. The probiotics in the human body mainly include lactobacilli, bifidobacteria, etc.
Studies have found that the reduction in the number of probiotics in the intestines is closely related to accelerated aging of the human body, reduced immunity, the occurrence of metabolic chronic diseases, and the formation of malignant tumors. For the human body to maintain health, the number of probiotics in the intestines must be dominant. Scientific research has confirmed that probiotics multiply in the intestines and can treat pseudomembranous colitis caused by extensive use of antibiotics; have two-way regulation functions for constipation and chronic diarrhea; protect the liver; prevent and treat hypertension and arteriosclerosis, as well as anti-aging, It can reduce serum cholesterol, prevent cancer and inhibit tumor growth; improve the intestinal microbial environment and enhance the body’s immunity.
Xylo-oligosaccharide is one of the species with the strongest ability to proliferate Bifidobacterium among the polymeric sugars. Its efficacy is nearly 20 times that of other polymeric sugars. There are no enzymes in the human gastrointestinal tract that hydrolyze xylo-oligosaccharides, so it is low in Xylose can directly enter the large intestine and be used preferentially by bifidobacteria. At the same time, it produces a variety of organic acids, lowers the pH value of the intestine, inhibits the growth of harmful bacteria, and allows probiotics to proliferate in the intestine to achieve the above health benefits.
Applications of xylo-oligosaccharides
Application in beverages
The acid and heat stability of xylo-oligosaccharides make it have obvious advantages in acidic beverages. In addition to highly selective proliferation of bifidobacteria, the addition of The dual value helps upgrade product functions to meet the beverage needs of different consumer groups. For example, common fermented milk drinks, lactic acid bacteria drinks, fruit vinegar drinks and other acidic drinks on the market. Other oligosaccharides are not stable enough in acidic environments, while xylo-oligosaccharides can maintain structural stability under acidic conditions and achieve targeted effects. Parts, Bifidobacterium proliferates quickly and efficiently, so that the health care functions produced by the proliferation of probiotics can be better reflected.
Application in baked goods
Baked food is a type of food that uses cereals as the basic raw material and oil, sugar, eggs, etc. as the main raw materials. It is characterized by high oil, high sugar, and even high-salt sugar, so it is very unsuitable for consumers who need to restrict their diet. The development of low-energy baked goods has become a development trend for health upgrades. Ingredients with low calories and low sweetness are used in sugar sources. became the first choice.
The research and development results of xylo-oligosaccharide cake show that adding xylo-oligosaccharide to the cake formula can give the cake low-sugar and sugar-free properties, realize the functionalization of the product, and make the cake soft in taste, unique in flavor and good in texture. It is uniform, suitable for public taste, has broad market prospects, and has the effect of increasing bifidobacteria in the human intestine.
The research and development of xylo-oligosaccharide crisp biscuits shows that adding xylo-oligosaccharide can not only meet the requirements of the national biscuit standards, but also give the biscuits a bright color, reduce the digestible sugar content in the crisp biscuits, and reduce the It reduces the caloric value of the product, improves the functional edible value of the biscuits, meets consumers’ demand for sugar-free crispy biscuits, and enhances the market competitiveness of the product. At the same time, xylo-oligosaccharides can reduce water activity. Adding xylo-oligosaccharides to baked goods can help control product moisture and extend shelf life.
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Post time: Apr-08-2024
