Influence of phytic acid and its metal complexes on the activity of pectin degrading polygalacturonase

► Phytic acid significantly inhibits the activity of polygalacturonase. ► The phytate-metallic complexes inhibit the polygalacturonase activity to some extent. ► 70% of polygalacturonase activity was lost after treatment of 20 mM of phytic at 37 °C for 30 min. ► Treatment of fruits and vegetables plants to phytic acid and Al+3 might be helpful to reduce their spoilage.