The Characteristics and Application of Polydextrose

Ⅰ. The characteristics of polydextrose

1. High water solubility

Polydextrose is easily soluble in water, and can dissolve about 80% when the temperature reaches 25 °C, and the solubility is stronger when the temperature increases. Different from ordinary fibrous fillers, polydextrose dissolves faster. If food grade KHCO3 is added to form polydextrose-K, the dissolution speed will be further.

2. Solution viscosity

At the same concentration, the viscosity of polydextrose solution is higher than that of sucrose solution and sorbitol solution. The viscosity of polydextrose solution decreases with the increase of temperature, which is very similar to sucrose solution, so the taste and texture of polydextrose in food can replace sugar or lipid.

3. Moisturizing

In the case of relatively high temperature, polydextrose will fully absorb water when it is in a solid state, so polydextrose can also be used as a humectant for food to control the humidity change of food and play a certain antiseptic effect.

4. Taste

Polydextrose itself has no sweetness, but it can be used with high-sweetness and low-calorie sweeteners to make low-calorie desserts. At the same time, if the concentration is too high, it will produce unpleasant flavor, so it is not advisable to add too much, and other seasonings can also be added. to eliminate this smell.

5. Stability

Polydextrose fiber is very stable, and it is difficult for microorganisms to survive in it. When the relative humidity of polydextrose is 75%, the concentration will shrink to 80%;

At 52% relative humidity, the concentration can be reduced to 90%. Long-term storage at high temperatures will darken the color, so it should be stored in a closed container at low temperature.

Ⅱ. The application of polydextrose

1. Polydextrose is used in health food industry

Polydextrose can be mixed with other ingredients to make healthy low calorie sweetener food. Polydextrose is a health food ingredient, which can be used in appropriate amounts in solid preparations and liquid preparations according to production needs. Because polydextrose has a low calorie value (1kcal/g), it can be used to produce low-energy, slimming and weight-loss health food for beauty lovers or young women.

2. Polydextrose is used to improve the quality of yogurt

As a organic soluble dextrin fiber with health care function, polydextrose is most commonly added to dairy products to enhance the nutritional health care function and taste of dairy products.

3. Application of polydextrose in ice cream

Polydextrose has become an application trend of functional ice cream due to its excellent fat-replacement function. On the premise of keeping other ingredients unchanged, 20% and 40% of margarine were replaced with polydextrose, and the expansion rate and other indicators were measured.

This shows that the use of polydextrose in functional ice cream will make ice cream have more health care functions without affecting the sensory and quality evaluation.

4. Application of polydextrose in bakery products

Polydextrose including polydextrose powder is also widely used in baked goods such as cakes. The combined use of polydextrose and AK sugar replaces 25%, 50%, 75%, and 100% of sucrose in the cake, respectively. The chromaticity of the substituted product is slightly lighter than that of the non-substituted product, and the pH value is not much different, all around 5.4. . Therefore, it is proved that polydextrose can replace sucrose in the production of low-calorie cakes without affecting the process performance of the finished product.

5. Application of polydextrose in candy

Polydextrose is also a good ingredient in sugar-free candies and is well tolerated. High water solubility and high viscosity, ensuring good chewability of hard candy and gummy candy; can prevent specific crystallization, especially candy using sugar alcohol; non-cariogenic, suitable for tooth-healthy candy.

Sucrose candies with polydextrose added to strengthen fiber, prebiotics, and reduce sucrose. Polydextrose can also reduce calories or reduce total blood sugar production.

6. Application of polydextrose in beverages

Polydextrose has excellent properties such as good water solubility, low pH value, high stability under heating conditions, stability during shelf life, and no loss of fiber. Polydextrose is widely used in beverage products (including solid beverages) without bad taste, good color and clarity, which enhances the taste of sugar-free or low-sugar beverages.