Uncover the whole process of xylooligosaccharide

1、 Definition and properties of Xylooligosaccharides

Xylooligosaccharides, also known as xylooligosaccharides, are composed of 2-7 xylose molecules β- A functional polysaccharide formed by the binding of 1,4 glycosidic bonds.

⊙ 1. Xylooligosaccharides are difficult to be decomposed by human digestive enzymes. The digestion experiments with saliva, gastric juice, pancreatic juice and small intestinal enzyme solution show that almost all kinds of digestive juice can not decompose xylooligosaccharides, neither affect the blood glucose concentration, nor increase the insulin level in blood glucose, and will not form fat deposition. Therefore, it can play a role in low-energy foods to meet the requirements of people who love sweets and worry about raising blood glucose and gaining weight to the greatest extent, Therefore, diabetics and obese patients can rest assured of food consumption.

⊙ 2. Good acid and thermal stability. Compared with other functional oligosaccharides, xylo oligosaccharides are characterized by good stability, high heat and acid resistance. Xylooligosaccharides are very stable in a wide pH range of 2.5-8.0. Within this pH range, Xylooligosaccharides are hardly decomposed after heating at 100 ℃ for 1H. Therefore, Xylooligosaccharides can be widely used in food.

⊙ 3. Less effective intake. Compared with other functional oligosaccharides, the daily effective dose of xylooligosaccharide is the smallest, only 0.7-1.4g, while the daily effective dose of Fructooligosaccharide is 5.0-20.0g, the daily effective dose of galactooligosaccharide is 8.0-10.0g, and the daily effective dose of soybean oligosaccharide is 3.0-10.0g, The effective daily dose of Isomaltooligosaccharide is 15.0-20.0 g, etc.

2、 Physiological functions of Xylooligosaccharides

There are hundreds of millions of bacteria inhabiting the human intestine and body surface, with more than 400 species and weighing up to two kilograms. Among them, there are harmful bacteria, which are called harmful bacteria, beneficial bacteria, which are called probiotics, and conditional pathogens between the two, that is, bacteria that will cause human illness under certain conditions. Probiotics in the human body mainly include lactic acid bacteria Bifidobacterium, etc.

It is found that the reduction of the number of probiotics in the intestine is closely related to the accelerated aging of the human body, the reduction of immunity, the generation of metabolic chronic diseases and the formation of malignant tumors. In order to maintain human health, the number of probiotics in the intestine must be dominant. Scientific research has confirmed that the massive reproduction of probiotics in the intestine can treat pseudomembranous enteritis caused by the massive use of antibiotics; It has two-way regulating function for constipation and chronic diarrhea; Improve intestinal microbial environment and improve human immunity.

Xylooligosaccharide is one of the most powerful varieties of polymeric sugars to proliferate bifidobacteria. Its efficacy is nearly 20 times that of other polymeric sugars. There is no enzyme to hydrolyze Xylooligosaccharides in human gastrointestinal tract. Therefore, Xylooligosaccharides can directly enter the large intestine, which is preferentially used by bifidobacteria. At the same time, it produces a variety of organic acids, reduces intestinal pH value and inhibits the growth of harmful bacteria, Make probiotics proliferate in large numbers in the intestine to achieve the above health benefits.

3、 Application of Xylooligosaccharides:

1.Application in beverage

The acid and thermal stability of xylo oligosaccharide makes it have obvious advantages in acidic beverages. In addition to the highly selective proliferation of bifidobacteria, the addition of xylo oligosaccharide can also give the beverage low sugar and low calorie characteristics, dual value of nutrition and health care, help the product function upgrade and meet the needs of different consumer groups for beverages. For example, for the common fermented milk drinks, lactic acid bacteria drinks, fruit vinegar drinks and other acidic drinks on the market, other oligosaccharides are not stable in the acidic environment, while Xylooligosaccharides can maintain structural stability under acidic conditions, target to the action site, and proliferate bifidobacteria rapidly and efficiently, so as to better reflect the health care function produced by the proliferation of probiotics.

2. Application in baked food

Baked food is a kind of food with cereals as basic raw materials and oil, sugar and eggs as main raw materials. It is characterized by high oil, high sugar and even high salt sugar, so it is not suitable for consumers who need to restrict diet. Therefore, the development of low-energy baked food has become the development trend of health upgrading, and the ingredients with low calories and low sweetness in the sugar source have become the first choice. The research and development results of xylooligosaccharide cake show that adding xylooligosaccharide to the cake formula can endow the cake with low sugar and no sugar, and realize the functionalization of the product. The cake has soft taste, unique flavor and uniform tissue state. It is suitable for public taste, has broad market prospects, and can improve bifidobacteria in human intestine; The research and development of xylooligosaccharide crisp biscuits shows that the addition of xylooligosaccharide can not only meet the requirements of the national standard of biscuits, but also give biscuits bright color, reduce the content of digestible sugar in crisp biscuits, reduce the calorific value of products, improve the functional edible value of biscuits, and realize the consumer's feeding demand for sugar free crisp biscuits, Enhance the market competitiveness of products. At the same time, Xylooligosaccharides can reduce water activity. Adding Xylooligosaccharides to baked foods is conducive to product water control and prolong shelf life.

3. Application in functional health food

With the improvement of living standards, people's demand for functional food is increasing. According to experts, the focus of health food is to develop health food for preventing cardiovascular, cerebrovascular diseases, cancer and diabetes. The development of health food regulating physiological function is becoming increasingly white hot. Xylo oligosaccharide is an ideal functional food additive, which can be widely used in the development and production of health food.

The carbohydrate, fat and protein metabolism of diabetes mellitus suffer from different degrees of disorder, resulting in a series of complications. Nutritional problems are particularly important in the control and treatment of diabetes. Dietary conditioning is the most basic treatment for diabetes. The selection of sweeteners in supplementary hypoglycemic health food is particularly important. The sweeteners used should not affect the patient's blood glucose level as a prerequisite, including non energy or low-energy sweeteners or filling sweeteners. Xylo oligosaccharide is not hydrolyzed by human digestive enzymes, and metabolism does not depend on insulin. Therefore, it does not affect the blood sugar of patients, and can meet the needs of diabetics.