Acetylated oxidized starch

from Wikipedia, the free encyclopedia

Acetylated oxidized starch is a chemically modified starch and is used as an additive in the food industry .

Alternative names: EU : E 1451, USA : 21CFR172.892.

Manufacturing

The production takes place in two steps.

oxidation

First, the starch is slurried and a 0.8 to 2 percent sodium hypochlorite solution is added. This happens at a temperature of around 21–38 ° C. The intermediate product is then neutralized with sodium hydrogen sulfite . The resulting salts are rinsed out with water. The product resulting from this process is oxidized starch . It usually contains residues of sodium chloride , sodium sulfate and sulfur dioxide .

Esterification

The oxidized starch is mixed with anhydride and esterified under mild alkaline conditions . The intermediate product is neutralized with hydrochloric acid , then cleaned with water and finally dried.

Properties and area of ​​application

In the case of products in which acetylated oxidized starch is used instead of acetylated starch , the appearance is clearer, sometimes almost transparent, compared to oxidized starch, these are more solid in their consistency .

Acetylated oxidized starch can be used instead of gelatin or gum arabic in candy making. If it is added in larger quantities, it can also replace some of the sugar that is otherwise used . It is largely stable in non-acidic foods; when it reacts with acid , it is converted into glucose , gluconic acid and acetic acid . There is almost no reaction with minerals, vitamins, proteins and other nutrients contained in food.

The main areas of application are as thickeners , coating agents and fillers , among other things in sterilized, pasteurized or ultra-high-temperature cream , confectionery and desserts .

Overall, acetylated oxidized starch is considered to be harmless to health.

Web links