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Mal Todextrin


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Dextrins are a group of low-molecular-weight carbohydrates produced by the hydrolysis of starch. Dextrins are mixtures of linear α-(1,4)-linked D-glucose polymers. They have the same general formula as carbohydrates but are of shorter chain length.

 

Industrial production is generally performed by acidic hydrolysis of potato starch. Dextrins are water soluble, white to slightly yellow solids which are optically active. Analytically, dextrins can be detected with iodine solution, giving a red coloration with green spots.

 

For example, maltodextrin is a moderately sweet polysaccharide used as a food additive, unrelated to barley malt. It is produced from corn starch and is usually found as a creamy white hygroscopic powder. Maltodextrin is easily digestible, being absorbed as rapidly as glucose.

 

Maltodextrin can be derived from any starch. In the US this starch is usually corn, elsewhere such as in Europe it is commonly barley or wheat. This is important for coeliacs since the wheat/barley derived maltodextrin can contain traces of gluten.

 

Foods containing Maltodextrin may contain traces of amino acids, including glutamic acid as a by-product of the manufacturing process. However, the amount of amino acids would not be high enough to have any dietary significance.

 

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