Maltodextrin is a polysaccharide that is used as a food additive. It is produced from starch by partial hydrolysis and is usually found as a white hygroscopic spray-dried powder. Maltodextrin is easily digestible, being absorbed as rapidly as glucose and might be either moderately sweet or almost flavorless (depending on the degree of polymerisation).
|Free soluble or readily dispersible in water|
|Solubility||slightly soluble to insoluble in anhydrous alcohol|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Maltodextrin consists of D-glucose units connected in chains of variable length. The glucose units are primarily linked with α(1→4) glycosidic bonds. Maltodextrin is typically composed of a mixture of chains that vary from three to 17 glucose units long.
Maltodextrins are classified by DE (dextrose equivalent) and have a DE between 3 and 20. The higher the DE value, the shorter the glucose chains, the higher the sweetness, the higher the solubility, and the lower heat resistance. Above DE 20, the European Union's CN code calls it glucose syrup; at DE 10 or lower the customs CN code nomenclature classifies maltodextrins as dextrins.
Maltodextrin can be enzymatically derived from any starch. In the US, this starch is usually corn; in Europe, it is common to use wheat. It is highly unlikely that maltodextrin derived from wheat would contain amounts of gluten significant to people suffering from gluten-related disorders such as coeliac disease. In the European Union, wheat-derived maltodextrin is exempt from labeling, as set out in Annex II of EC Directive No 1169/2011. In the United States, however, it is not exempt from allergen declaration per the Food Allergen Labeling and Consumer Protection Act, and its effect on a voluntary gluten-free claim must be evaluated on a case-by-case basis per the applicable Food and Drug Administration policy.
Maltodextrin is sometimes used in beer brewing to increase the specific gravity of the final product. This improves the mouthfeel of the beer, increases head retention and reduces the dryness of the drink. Maltodextrin is not fermented by yeast, so it does not increase the alcohol content of the brew. It is also used in some snacks such as potato chips and jerky. It is used in "light" peanut butter to reduce the fat content, but keep the texture. Maltodextrin is also sometimes taken as a supplement by bodybuilders and other athletes in powder form or in gel packets.
Maltodextrin is used as a horticultural insecticide both in the field and in greenhouses. It has no physiological or biochemical action. Its efficacy is based upon spraying a 50% solution upon the pest insects whereupon the solution dries, blocks the insects' spiracles and causes death by asphyxiation.
- "Reference Tables: Description and Solubility - M". pharmacopeia.cn.
- "Top 10 Ingredients You Really Don't Need to Worry About".
- Annex II, REGULATION (EU) No 1169/2011 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL, Directive No. 1169/2011 of 25 October 2011. Retrieved on 4 Apr 2016.
- "How to Brew" at Black Rock, a beer brewing supplier in New Zealand
- "What is Maltodextrin? (with pictures)". wisegeek.org.
- "Maltodextrin: The Time and Place for High Glycemic Carbohydrates".