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ISO
ISO 11213:1995

ISO 11213:1995

Modified starch — Determination of acetyl content — Enzymatic method

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General Information

Status : Active

Standard Type : Main

Document No : ISO 11213:1995

Document Year : 1995

Pages : 8

Edition : 1

Section Volume : Starch (including derivatives and by-products) (ISO/TC 93.)

ICS : Starch and derived products (67.180.20)

Applies to modified starch, both granular and soluble in cold water. The methods specified enable to measure total and free acetyl contents; bound acetyl content is calculated as the difference of the two values. Total content is determined by heating the sample with dilute hydrochloric acid and converting the acetate with adenosine-5-triphosphate (ATP) and coenzyme A (CoA) to acetyl-CoA. The methods are suitable for determining acetyl contents up to 2 % (m/m).