A simple and rapid procedure for phytate determination in soybeans and soy products

A rapid and simple analytical procedure to determine the phytate (myo-inositol hexaphosphate) content in soybeans and soy products is described. Minimal sample preparation and automated HPLC analysis were achieved for large numbers of samples. Determination of the phytate content in a variety of soybean samples, including animal feeds, demonstrated the simplicity, reliability, and economy of the procedure compared with other time-consuming, complicated, and laborious methods.