Beijing Hongvadar Engineering Technology Co.
Beijing Hongvadar Engineering Technology Co.

Structure and Application of Maltodextrin

Maltodextrin is a polysaccharide used as a food additive. It is made from the partial hydrolysis of vegetable starch and is usually found as a white hygroscopic spray-dried powder. Maltodextrin is easily digested, absorbed as quickly as glucose, and may be moderately sweet or almost tasteless (depending on the degree of polymerization). It is commonly used in the production of soft drinks and confectionery. It can also be found as an ingredient in a variety of other processed foods.


Ⅰ. The structure of maltodextrin


Maltodextrins consist of d-glucose linked in chain units of variable length. Glucose units are mainly linked by α-glycosidic bonds. Maltodextrins generally consist of a mixture of chains that vary in length from 3 to 17 glucose units. Maltodextrins are classified by DE, which ranges from 3 to 20. The higher the DE value, the shorter the glucose chain, the higher the sweetness, the higher the solubility, and the lower the heat resistance.


Maltodextrin powder can be enzymatically derived from any starch. In Europe, wheat is commonly used. In the European Union, maltodextrins of wheat origin are exempt from labeling as stipulated in the Annex to the EC Directive.


Ⅱ. Food use of maltodextrin


1. Adding maltodextrin to milk powder and other dairy products can make the product volume expand, not easy to agglomerate, instant, good reconstitution, prolong the service life of the product, reduce costs and improve economic benefits. It can also improve the nutritional ratio, increase the nutritional value, and be easy to digest and absorb. The role of maltodextrin in formulating functional milk powder, especially sucrose-free milk powder, infant booster milk powder, etc. has been confirmed. The dosage is 5%~20%.


2. It is used in nutritious snack foods such as soybean milk powder, instant oatmeal and malted milk extract. It has a good taste and instant thickening effect, avoids precipitation and stratification, can absorb beany smell or milky smell, and prolongs the shelf life. Refer to the dosage 10%~25%.


3. When used in solid beverages, such as milk tea, fruit juice, instant tea and solid tea, it can maintain the characteristics and fragrance of the original product, reduce the cost, the product tastes mellow and delicate, has excellent instant effect, and inhibits crystallization. The emulsifying effect is good, and the carrier effect is obvious. The reference dosage is 10%~30%. The maltodextrin of DE24~29 is suitable for the production of coffee mate, and the dosage can be as high as 70%.


4. Used in frozen foods such as ice cream, ice cream or popsicles. The ice particles expand delicately, have good viscous properties, mild sweetness, little or no cholesterol, pure flavor and good taste. The dosage is 10%~25%.


5. When used in candies, it can increase the toughness of candies, prevent sand return and oxidation, and improve the structure. Reduce the sweetness of candies, reduce dental diseases, reduce tooth sticking, improve flavor, prevent deliquescence, and extend shelf life. The dosage is generally 10% to 30%.


6. Used for biscuits or other convenience foods, with full shape, smooth surface, clear color and good appearance. The product is crispy and delicious, moderately sweet, does not stick to the teeth in the mouth, does not leave residue, has few defective products, and has a long service life. The dosage is 5%~10%.


7. The main function of maltodextrin in various canned or soup foods is to increase the consistency and improve the structure, appearance and flavor. Used in foods such as solid seasonings, spices, powdered oils, etc., it plays the role of dilution and filling, prevents moisture from caking, and makes the product easy to store. It can also function as a substitute for oil in powdered oil.


8. Adding maltodextrin to meat products such as ham and sausage can reflect its strong adhesiveness and thickening properties, making the product delicate, rich in taste, easy to pack and shape, and extending the shelf life. The dosage is 5%~10%.


Ⅲ. Other uses of maltodextrin


Maltodextrin is used as a horticultural insecticide both in the field and in the greenhouse. It has no physiological or biochemical effects. Its efficacy is based on spraying a dilute solution on the pest, which then dries up, blocks the insect's breath and dies from suffocation.


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