Abstract
In this experiment, Weixian radish, a specialty of Shandong, was used as raw material, and single factor and orthogonal test methods were used. The extraction process conditions of phytic acid were studied and optimized, and its antioxidant activity was studied. The results of the study showed that the phytic acid in Weixian radish was the optimal condition for the extraction of phytic acid from Weixian radish at the extraction time of 30 minutes, temperature of 25°C, and material-to-liquid ratio of 1:55, and had the greatest impact on the extraction of phytic acid is the temperature. The second was the material-to-liquid ratio, and finally the extraction time. The content of phytic acid extracted under optimal conditions was 0.1276mg/g. The scavenging rate of phytic acid extract under the optimal conditions to DPPH free radical was 30.63%. The .OH radical scavenging rate was 83.12%, the FRAP value was 3.853μmol/L, and the antioxidant effect was significant.
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