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Study on the Determination of Phytic Acid in CerealQ

Yan Xiaomei; Jiang Mingwie; Hu Zhengzhi(China National Research Institute of Food & Fermentation Industry,Beijing, 100027)  
An ion exchange-colorimetric method for the determination of phytic acidin cereal was described. Samples were extracted by Na2SO4-HCl and separated by ion-ex-change resin. FeCl3-sulfosalicylic acid solution was decolourized by phytic acid, and whichwas quantated by measurement the absorbance at 500nm. The lowest limit of determinationwas 0.05mg/g. The precision(RSD% ) was 0. 78~4. 9. The recovery was 100. 9 ±2. 7%. De-termination results showed satisfactory agreement with the other method.
【CateGory Index】: TS201
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